lab2-hard.

.gitignore

@@ -398,3 +398,4 @@ FodyWeavers.xsd
 # JetBrains Rider
 *.sln.iml
 
+/Confectionery/ImplementationExtensions

Confectionery/Confectionery.sln

@@ -3,7 +3,20 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.9.34622.214
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Confectionery", "Confectionery\Confectionery.csproj", "{E19664A2-BC0D-451E-B9E1-2A5546873A14}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryView", "Confectionery\ConfectioneryView.csproj", "{E19664A2-BC0D-451E-B9E1-2A5546873A14}"
+	ProjectSection(ProjectDependencies) = postProject
+		{511A9EBD-14A4-48E9-9101-41A5FB8D3C17} = {511A9EBD-14A4-48E9-9101-41A5FB8D3C17}
+	EndProjectSection
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryDataModels", "ConfectioneryDataModels\ConfectioneryDataModels.csproj", "{92EBD50D-79CE-46FC-B261-43098E98B78F}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryContracts", "ConfectioneryContracts\ConfectioneryContracts.csproj", "{181AF2FE-AE82-4767-B58B-36C0F22B56CD}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryBusinessLogic", "ConfectioneryBusinessLogic\ConfectioneryBusinessLogic.csproj", "{B72CA521-8F72-4F11-9B1F-FC8CA295C6BB}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryListImplement", "ConfectioneryListImplement\ConfectioneryListImplement.csproj", "{5915CA47-6266-42F1-9AC9-A6B3882CE245}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ConfectioneryFileImplement", "ConfectioneryFileImplement\ConfectioneryFileImplement.csproj", "{511A9EBD-14A4-48E9-9101-41A5FB8D3C17}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +28,26 @@ Global
 		{E19664A2-BC0D-451E-B9E1-2A5546873A14}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E19664A2-BC0D-451E-B9E1-2A5546873A14}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{E19664A2-BC0D-451E-B9E1-2A5546873A14}.Release|Any CPU.Build.0 = Release|Any CPU
+		{92EBD50D-79CE-46FC-B261-43098E98B78F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{92EBD50D-79CE-46FC-B261-43098E98B78F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{92EBD50D-79CE-46FC-B261-43098E98B78F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{92EBD50D-79CE-46FC-B261-43098E98B78F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{181AF2FE-AE82-4767-B58B-36C0F22B56CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{181AF2FE-AE82-4767-B58B-36C0F22B56CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{181AF2FE-AE82-4767-B58B-36C0F22B56CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{181AF2FE-AE82-4767-B58B-36C0F22B56CD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B72CA521-8F72-4F11-9B1F-FC8CA295C6BB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B72CA521-8F72-4F11-9B1F-FC8CA295C6BB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B72CA521-8F72-4F11-9B1F-FC8CA295C6BB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B72CA521-8F72-4F11-9B1F-FC8CA295C6BB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{5915CA47-6266-42F1-9AC9-A6B3882CE245}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{5915CA47-6266-42F1-9AC9-A6B3882CE245}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{5915CA47-6266-42F1-9AC9-A6B3882CE245}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{5915CA47-6266-42F1-9AC9-A6B3882CE245}.Release|Any CPU.Build.0 = Release|Any CPU
+		{511A9EBD-14A4-48E9-9101-41A5FB8D3C17}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{511A9EBD-14A4-48E9-9101-41A5FB8D3C17}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{511A9EBD-14A4-48E9-9101-41A5FB8D3C17}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{511A9EBD-14A4-48E9-9101-41A5FB8D3C17}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Confectionery/Confectionery/ConfectioneryView.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.ApplicationInsights" Version="2.22.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConfectioneryBusinessLogic\ConfectioneryBusinessLogic.csproj" />
+    <ProjectReference Include="..\ConfectioneryListImplement\ConfectioneryListImplement.csproj" />
+	<ProjectReference Include="..\ConfectioneryFileImplement\ConfectioneryFileImplement.csproj" />
+  </ItemGroup>
+
+</Project>

Confectionery/Confectionery/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace Confectionery
-{
-    partial class Form1
-    {
-        /// <summary>
-        ///  Required designer variable.
-        /// </summary>
-        private System.ComponentModel.IContainer components = null;
-
-        /// <summary>
-        ///  Clean up any resources being used.
-        /// </summary>
-        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
-        #region Windows Form Designer generated code
-
-        /// <summary>
-        ///  Required method for Designer support - do not modify
-        ///  the contents of this method with the code editor.
-        /// </summary>
-        private void InitializeComponent()
-        {
-            this.components = new System.ComponentModel.Container();
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(800, 450);
-            this.Text = "Form1";
-        }
-
-        #endregion
-    }
-}

Confectionery/Confectionery/Form1.cs

@@ -1,10 +0,0 @@
-namespace Confectionery
-{
-    public partial class Form1 : Form
-    {
-        public Form1()
-        {
-            InitializeComponent();
-        }
-    }
-}

Confectionery/Confectionery/FormComponent.Designer.cs

@@ -0,0 +1,122 @@
+namespace ConfectioneryView
+{
+    partial class FormComponent
+    {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelCost = new Label();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            textBoxName = new TextBox();
+            textBoxCost = new TextBox();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(16, 21);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(94, 25);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название:";
+            // 
+            // labelCost
+            // 
+            labelCost.AutoSize = true;
+            labelCost.Location = new Point(16, 66);
+            labelCost.Name = "labelCost";
+            labelCost.Size = new Size(57, 25);
+            labelCost.TabIndex = 1;
+            labelCost.Text = "Цена:";
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonSave.Location = new Point(336, 148);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(112, 34);
+            buttonSave.TabIndex = 2;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonCancel.Location = new Point(454, 148);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(112, 34);
+            buttonCancel.TabIndex = 3;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // textBoxName
+            // 
+            textBoxName.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxName.Location = new Point(170, 21);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(396, 31);
+            textBoxName.TabIndex = 4;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxCost.Location = new Point(170, 66);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.Size = new Size(160, 31);
+            textBoxCost.TabIndex = 5;
+            // 
+            // FormComponent
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(578, 194);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxName);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(labelCost);
+            Controls.Add(labelName);
+            Name = "FormComponent";
+            Text = "Компонент";
+            Load += FormComponent_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+    }
+}

Confectionery/Confectionery/FormComponent.cs

@@ -0,0 +1,87 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryView
+{
+    public partial class FormComponent : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentLogic _logic;
+        private int? _id;
+        public int Id { set { _id = value; } }
+        public FormComponent(ILogger<FormComponent> logger, 
+            IComponentLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+        private void FormComponent_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                try
+                {
+                    _logger.LogInformation("Ïîëó÷åíèå êîìïîíåíòà");
+                    var view = _logic.ReadElement(new ComponentSearchModel
+                    {
+                        Id = _id.Value
+                    });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.ComponentName;
+                        textBoxCost.Text = view.Cost.ToString();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Îøèáêà ïîëó÷åíèÿ êîìïîíåíòà");
+                    MessageBox.Show(ex.Message, "Îøèáêà", MessageBoxButtons.OK,
+                        MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Çàïîëíèòå íàçâàíèå", "Îøèáêà", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Ñîõðàíåíèå êîìïîíåíòà");
+            try
+            {
+                var model = new ComponentBindingModel
+                {
+                    Id = _id ?? 0,
+                    ComponentName = textBoxName.Text,
+                    Cost = Convert.ToDouble(textBoxCost.Text)
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) :
+                _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Îøèáêà ïðè ñîõðàíåíèè. " +
+                        "Äîïîëíèòåëüíàÿ èíôîðìàöèÿ â ëîãàõ.");
+                }
+                MessageBox.Show("Ñîõðàíåíèå ïðîøëî óñïåøíî", "Ñîîáùåíèå", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Îøèáêà ñîõðàíåíèÿ êîìïîíåíòà");
+                MessageBox.Show(ex.Message, "Îøèáêà", MessageBoxButtons.OK, 
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

Confectionery/Confectionery/FormComponent.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormComponents.Designer.cs

@@ -0,0 +1,119 @@
+namespace ConfectioneryView
+{
+    partial class FormComponents
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            buttonAdd = new Button();
+            buttonUpd = new Button();
+            buttonDel = new Button();
+            buttonRef = new Button();
+            dataGridView = new DataGridView();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonAdd.Location = new Point(754, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(112, 56);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonUpd.Location = new Point(754, 74);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(112, 56);
+            buttonUpd.TabIndex = 1;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonDel.Location = new Point(754, 198);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(112, 56);
+            buttonDel.TabIndex = 2;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonRef
+            // 
+            buttonRef.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonRef.Location = new Point(754, 136);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(112, 56);
+            buttonRef.TabIndex = 3;
+            buttonRef.Text = "Обновить";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += ButtonRef_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            dataGridView.BackgroundColor = SystemColors.Window;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 62;
+            dataGridView.Size = new Size(742, 444);
+            dataGridView.TabIndex = 4;
+            // 
+            // FormComponents
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(878, 444);
+            Controls.Add(buttonRef);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormComponents";
+            Text = "Компоненты";
+            Load += FormComponents_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Button buttonAdd;
+        private Button buttonUpd;
+        private Button buttonDel;
+        private Button buttonRef;
+        private DataGridView dataGridView;
+    }
+}

Confectionery/Confectionery/FormComponents.cs

@@ -0,0 +1,108 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryView
+{
+    public partial class FormComponents : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentLogic _logic;
+        public FormComponents(ILogger<FormComponents> logger, 
+            IComponentLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+        private void FormComponents_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["ComponentName"].AutoSizeMode = 
+                    DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка компонентов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки компонентов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, 
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(
+                typeof(FormComponent));
+            if (service is FormComponent form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service =
+               Program.ServiceProvider?.GetService(typeof(FormComponent));
+                if (service is FormComponent form)
+                {
+                    form.Id = Convert.ToInt32(
+                        dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", 
+                    MessageBoxButtons.YesNo, MessageBoxIcon.Question) == 
+                    DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(
+                        dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    _logger.LogInformation("Удаление компонента");
+                    try
+                    {
+                        if (!_logic.Delete(new ComponentBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении. " +
+                                "Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления компонента");
+                        MessageBox.Show(ex.Message, "Ошибка", 
+                            MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

Confectionery/Confectionery/FormComponents.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormCreateOrder.Designer.cs

@@ -0,0 +1,150 @@
+namespace ConfectioneryView
+{
+    partial class FormCreateOrder
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelPastry = new Label();
+            labelCount = new Label();
+            labelSum = new Label();
+            comboBoxPastry = new ComboBox();
+            textBoxCount = new TextBox();
+            textBoxSum = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // labelPastry
+            // 
+            labelPastry.AutoSize = true;
+            labelPastry.Location = new Point(16, 21);
+            labelPastry.Name = "labelPastry";
+            labelPastry.Size = new Size(84, 25);
+            labelPastry.TabIndex = 0;
+            labelPastry.Text = "Изделие:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(16, 66);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(111, 25);
+            labelCount.TabIndex = 1;
+            labelCount.Text = "Количество:";
+            // 
+            // labelSum
+            // 
+            labelSum.AutoSize = true;
+            labelSum.Location = new Point(16, 112);
+            labelSum.Name = "labelSum";
+            labelSum.Size = new Size(71, 25);
+            labelSum.TabIndex = 2;
+            labelSum.Text = "Сумма:";
+            // 
+            // comboBoxPastry
+            // 
+            comboBoxPastry.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            comboBoxPastry.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxPastry.FormattingEnabled = true;
+            comboBoxPastry.Location = new Point(170, 21);
+            comboBoxPastry.Name = "comboBoxPastry";
+            comboBoxPastry.Size = new Size(396, 33);
+            comboBoxPastry.TabIndex = 3;
+            comboBoxPastry.SelectedIndexChanged += ComboBoxPastry_SelectedIndexChanged;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxCount.Location = new Point(170, 66);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(396, 31);
+            textBoxCount.TabIndex = 4;
+            textBoxCount.TextChanged += TextBoxCount_TextChanged;
+            // 
+            // textBoxSum
+            // 
+            textBoxSum.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxSum.Location = new Point(170, 112);
+            textBoxSum.Name = "textBoxSum";
+            textBoxSum.ReadOnly = true;
+            textBoxSum.Size = new Size(396, 31);
+            textBoxSum.TabIndex = 5;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonSave.Location = new Point(336, 148);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(112, 34);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonCancel.Location = new Point(454, 148);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(112, 34);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormCreateOrder
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(578, 194);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxSum);
+            Controls.Add(textBoxCount);
+            Controls.Add(comboBoxPastry);
+            Controls.Add(labelSum);
+            Controls.Add(labelCount);
+            Controls.Add(labelPastry);
+            Name = "FormCreateOrder";
+            Text = "Создание заказа";
+            Load += FormCreateOrder_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelPastry;
+        private Label labelCount;
+        private Label labelSum;
+        private ComboBox comboBoxPastry;
+        private TextBox textBoxCount;
+        private TextBox textBoxSum;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

Confectionery/Confectionery/FormCreateOrder.cs

@@ -0,0 +1,122 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryView
+{
+    public partial class FormCreateOrder : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IPastryLogic _logicP;
+        private readonly IOrderLogic _logicO;
+        public FormCreateOrder(ILogger<FormCreateOrder> logger, 
+            IPastryLogic logicP, IOrderLogic logicO)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicP = logicP;
+            _logicO = logicO;
+        }
+        private void FormCreateOrder_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Загрузка кондитерских изделий для заказа");
+            try
+            {
+                var list = _logicP.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxPastry.DisplayMember = "PastryName";
+                    comboBoxPastry.ValueMember = "Id";
+                    comboBoxPastry.DataSource = list;
+                    comboBoxPastry.SelectedItem = null;
+                }
+                _logger.LogInformation("Кондитерское изделие загружено");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки кондитерского изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void CalcSum()
+        {
+            if (comboBoxPastry.SelectedValue != null && 
+                !string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                try
+                {
+                    int id = Convert.ToInt32(comboBoxPastry.SelectedValue);
+                    var pastry = _logicP.ReadElement(new PastrySearchModel
+                    {
+                        Id = id
+                    });
+                    int count = Convert.ToInt32(textBoxCount.Text);
+                    textBoxSum.Text = Math.Round(count * (pastry?.Price ?? 0),
+                        2).ToString();
+                    _logger.LogInformation("Расчет суммы заказа");
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка расчета суммы заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                        MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void TextBoxCount_TextChanged(object sender, EventArgs e)
+        {
+            CalcSum();
+        }
+        private void ComboBoxPastry_SelectedIndexChanged(object sender,
+            EventArgs e)
+        {
+            CalcSum();
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+        if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxPastry.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите кондитерское изделие", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Создание заказа");
+            try
+            {
+                var operationResult = _logicO.CreateOrder(new OrderBindingModel
+                {
+                    PastryId = Convert.ToInt32(comboBoxPastry.SelectedValue),
+                    Count = Convert.ToInt32(textBoxCount.Text),
+                    Sum = Convert.ToDouble(textBoxSum.Text)
+                });
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при создании заказа. " +
+                        "Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка создания заказа");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, 
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

Confectionery/Confectionery/FormCreateOrder.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormMain.Designer.cs

@@ -0,0 +1,206 @@
+namespace ConfectioneryView
+{
+    partial class FormMain
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonCreateOrder = new Button();
+            buttonTakeOrderInWork = new Button();
+            buttonOrderReady = new Button();
+            buttonIssuedOrder = new Button();
+            buttonRef = new Button();
+            menuStrip = new MenuStrip();
+            referencesToolStripMenuItem = new ToolStripMenuItem();
+            componentsToolStripMenuItem = new ToolStripMenuItem();
+            pastriesToolStripMenuItem = new ToolStripMenuItem();
+			shopsToolStripMenuItem = new ToolStripMenuItem();
+			supplyToolStripMenuItem = new ToolStripMenuItem();
+			sellToolStripMenuItem = new ToolStripMenuItem();
+			((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            menuStrip.SuspendLayout();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            dataGridView.BackgroundColor = SystemColors.Window;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 36);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 62;
+            dataGridView.Size = new Size(1001, 406);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonCreateOrder
+            // 
+            buttonCreateOrder.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonCreateOrder.Location = new Point(1016, 36);
+            buttonCreateOrder.Name = "buttonCreateOrder";
+            buttonCreateOrder.Size = new Size(126, 74);
+            buttonCreateOrder.TabIndex = 3;
+            buttonCreateOrder.Text = "Создать заказ";
+            buttonCreateOrder.UseVisualStyleBackColor = true;
+            buttonCreateOrder.Click += ButtonCreateOrder_Click;
+            // 
+            // buttonTakeOrderInWork
+            // 
+            buttonTakeOrderInWork.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonTakeOrderInWork.Location = new Point(1016, 116);
+            buttonTakeOrderInWork.Name = "buttonTakeOrderInWork";
+            buttonTakeOrderInWork.Size = new Size(126, 74);
+            buttonTakeOrderInWork.TabIndex = 4;
+            buttonTakeOrderInWork.Text = "Отдать на выполнение";
+            buttonTakeOrderInWork.UseVisualStyleBackColor = true;
+            buttonTakeOrderInWork.Click += ButtonTakeOrderInWork_Click;
+            // 
+            // buttonOrderReady
+            // 
+            buttonOrderReady.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonOrderReady.Location = new Point(1016, 196);
+            buttonOrderReady.Name = "buttonOrderReady";
+            buttonOrderReady.Size = new Size(126, 74);
+            buttonOrderReady.TabIndex = 5;
+            buttonOrderReady.Text = "Заказ готов";
+            buttonOrderReady.UseVisualStyleBackColor = true;
+            buttonOrderReady.Click += ButtonOrderReady_Click;
+            // 
+            // buttonIssuedOrder
+            // 
+            buttonIssuedOrder.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonIssuedOrder.Location = new Point(1016, 276);
+            buttonIssuedOrder.Name = "buttonIssuedOrder";
+            buttonIssuedOrder.Size = new Size(126, 74);
+            buttonIssuedOrder.TabIndex = 6;
+            buttonIssuedOrder.Text = "Заказ выдан";
+            buttonIssuedOrder.UseVisualStyleBackColor = true;
+            buttonIssuedOrder.Click += ButtonIssuedOrder_Click;
+            // 
+            // buttonRef
+            // 
+            buttonRef.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonRef.Location = new Point(1016, 356);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(126, 74);
+            buttonRef.TabIndex = 7;
+            buttonRef.Text = "Обновить список";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += ButtonRef_Click;
+            // 
+            // menuStrip
+            // 
+            menuStrip.Dock = DockStyle.None;
+            menuStrip.ImageScalingSize = new Size(24, 24);
+            menuStrip.Items.AddRange(new ToolStripItem[] { referencesToolStripMenuItem });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(147, 33);
+            menuStrip.TabIndex = 8;
+            menuStrip.Text = "menuStrip1";
+			// 
+			// referencesToolStripMenuItem
+			// 
+			referencesToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { componentsToolStripMenuItem, pastriesToolStripMenuItem, shopsToolStripMenuItem, supplyToolStripMenuItem, sellToolStripMenuItem });
+            referencesToolStripMenuItem.Name = "referencesToolStripMenuItem";
+            referencesToolStripMenuItem.Size = new Size(139, 29);
+            referencesToolStripMenuItem.Text = "Справочники";
+            // 
+            // componentsToolStripMenuItem
+            // 
+            componentsToolStripMenuItem.Name = "componentsToolStripMenuItem";
+            componentsToolStripMenuItem.Size = new Size(298, 34);
+            componentsToolStripMenuItem.Text = "Компоненты";
+            componentsToolStripMenuItem.Click += ComponentsToolStripMenuItem_Click;
+            // 
+            // pastriesToolStripMenuItem
+            // 
+            pastriesToolStripMenuItem.Name = "pastriesToolStripMenuItem";
+            pastriesToolStripMenuItem.Size = new Size(298, 34);
+            pastriesToolStripMenuItem.Text = "Кондитерские изделия";
+            pastriesToolStripMenuItem.Click += PastriesToolStripMenuItem_Click;
+			// 
+			// shopsToolStripMenuItem
+			// 
+			shopsToolStripMenuItem.Name = "shopsToolStripMenuItem";
+			shopsToolStripMenuItem.Size = new Size(298, 34);
+			shopsToolStripMenuItem.Text = "Магазины";
+			shopsToolStripMenuItem.Click += ShopsToolStripMenuItem_Click;
+			// 
+			// supplyToolStripMenuItem
+			// 
+			supplyToolStripMenuItem.Name = "supplyToolStripMenuItem";
+			supplyToolStripMenuItem.Size = new Size(298, 34);
+			supplyToolStripMenuItem.Text = "Поставки";
+			supplyToolStripMenuItem.Click += SupplyToolStripMenuItem_Click;
+			// 
+			// sellToolStripMenuItem
+			// 
+			sellToolStripMenuItem.Name = "sellToolStripMenuItem";
+			sellToolStripMenuItem.Size = new Size(224, 26);
+			sellToolStripMenuItem.Text = "Продажи";
+			sellToolStripMenuItem.Click += SellToolStripMenuItem_Click;
+			// 
+			// FormMain
+			// 
+			AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(1154, 442);
+            Controls.Add(menuStrip);
+            Controls.Add(buttonRef);
+            Controls.Add(buttonIssuedOrder);
+            Controls.Add(buttonOrderReady);
+            Controls.Add(buttonTakeOrderInWork);
+            Controls.Add(buttonCreateOrder);
+            Controls.Add(dataGridView);
+            MainMenuStrip = menuStrip;
+            Name = "FormMain";
+            Text = "Кондитерская";
+            Load += FormMain_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonCreateOrder;
+        private Button buttonTakeOrderInWork;
+        private Button buttonOrderReady;
+        private Button buttonIssuedOrder;
+        private Button buttonRef;
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem referencesToolStripMenuItem;
+        private ToolStripMenuItem pastriesToolStripMenuItem;
+        private ToolStripMenuItem componentsToolStripMenuItem;
+		private ToolStripMenuItem shopsToolStripMenuItem;
+		private ToolStripMenuItem supplyToolStripMenuItem;
+		private ToolStripMenuItem sellToolStripMenuItem;
+	}
+}

Confectionery/Confectionery/FormMain.cs

@@ -0,0 +1,209 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryDataModels.Enums;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryView
+{
+    public partial class FormMain : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderLogic _orderLogic;
+        public FormMain(ILogger<FormMain> logger, IOrderLogic orderLogic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _orderLogic = orderLogic;
+        }
+        private void FormMain_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка заказов");
+            try
+            {
+                var list = _orderLogic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["PastryId"].Visible = false;
+                    dataGridView.Columns["PastryName"].AutoSizeMode = 
+                        DataGridViewAutoSizeColumnMode.None;
+                }
+                _logger.LogInformation("Загрузка заказов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки заказов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ComponentsToolStripMenuItem_Click(object sender, 
+            EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(
+                typeof(FormComponents));
+            if (service is FormComponents form)
+            {
+                form.ShowDialog();
+            }
+        }
+        private void PastriesToolStripMenuItem_Click(object sender, 
+            EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(
+                typeof(FormPastries));
+            if (service is FormPastries form)
+            {
+                form.ShowDialog();
+            }
+        }
+		private void ShopsToolStripMenuItem_Click(object sender,
+			EventArgs e)
+		{
+			var service = Program.ServiceProvider?.GetService(
+				typeof(FormShops));
+			if (service is FormShops form)
+			{
+				form.ShowDialog();
+			}
+		}
+		private void SupplyToolStripMenuItem_Click(object sender,
+			EventArgs e)
+		{
+			var service = Program.ServiceProvider?.GetService(
+				typeof(FormSupply));
+			if (service is FormSupply form)
+			{
+				form.ShowDialog();
+			}
+		}
+		private void SellToolStripMenuItem_Click(object sender, 
+            EventArgs e)
+		{
+			var service = Program.ServiceProvider?.GetService(
+                typeof(FormSell));
+			if (service is FormSell form)
+			{
+				form.ShowDialog();
+			}
+		}
+		private void ButtonCreateOrder_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(
+                typeof(FormCreateOrder));
+            if (service is FormCreateOrder form)
+            {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+        private void ButtonTakeOrderInWork_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(
+                    dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation(
+                    "Заказ №{id}. Меняется статус на 'В работе'", id);
+            try
+                {
+                    var operationResult = _orderLogic.TakeOrderInWork(
+                        CreateBindingModel(id));
+                    if (!operationResult)
+                    {
+                        throw new Exception(
+                            "Ошибка при сохранении. Дополнительная " +
+                            "информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка передачи заказа в работу");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                        MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonOrderReady_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(
+                    dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. " +
+                    "Меняется статус на 'Готов'", id);
+                try
+                {
+                    var operationResult = _orderLogic.FinishOrder(
+                        CreateBindingModel(id));
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. " +
+                            "Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о готовности заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                        MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonIssuedOrder_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(
+                    dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation(
+                    "Заказ №{id}. Меняется статус на 'Выдан'", id);
+                try
+                {
+                    var operationResult = _orderLogic.DeliveryOrder(
+                        CreateBindingModel(id));
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. " +
+                            "Дополнительная информация в логах.");
+                    }
+                    _logger.LogInformation("Заказ №{id} выдан", id);
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о выдачи заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                        MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private OrderBindingModel CreateBindingModel(int id, 
+            bool isDone = false)
+        {
+            return new OrderBindingModel
+            {
+                Id = id,
+                PastryId = Convert.ToInt32(dataGridView.SelectedRows[
+                    0].Cells["PastryId"].Value),
+                Status = Enum.Parse<OrderStatus>(dataGridView.SelectedRows[
+                    0].Cells["Status"].Value.ToString()),
+                Count = Convert.ToInt32(dataGridView.SelectedRows[
+                    0].Cells["Count"].Value),
+                Sum = double.Parse(dataGridView.SelectedRows[
+                    0].Cells["Sum"].Value.ToString()),
+                DateCreate = DateTime.Parse(dataGridView.SelectedRows[
+                    0].Cells["DateCreate"].Value.ToString()),
+            };
+        }
+    }
+}

Confectionery/Confectionery/FormMain.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="menuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>233, 17</value>
+  </metadata>
+</root>

Confectionery/Confectionery/FormPastries.Designer.cs

@@ -0,0 +1,126 @@
+namespace ConfectioneryView
+{
+    partial class FormPastries
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer Pastries = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (Pastries != null))
+            {
+                Pastries.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonAdd = new Button();
+            buttonUpd = new Button();
+            buttonDel = new Button();
+            buttonRef = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            dataGridView.BackgroundColor = SystemColors.Window;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Margin = new Padding(4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(742, 444);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonAdd.Location = new Point(754, 12);
+            buttonAdd.Margin = new Padding(4);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(112, 56);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonUpd.Location = new Point(754, 74);
+            buttonUpd.Margin = new Padding(4);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(112, 56);
+            buttonUpd.TabIndex = 2;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonDel.Location = new Point(754, 198);
+            buttonDel.Margin = new Padding(4);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(112, 56);
+            buttonDel.TabIndex = 3;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonRef
+            // 
+            buttonRef.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonRef.Location = new Point(754, 136);
+            buttonRef.Margin = new Padding(4);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(112, 56);
+            buttonRef.TabIndex = 4;
+            buttonRef.Text = "Обновить";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += ButtonRef_Click;
+            // 
+            // FormPastries
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(878, 444);
+            Controls.Add(buttonRef);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Margin = new Padding(4);
+            Name = "FormPastries";
+            Text = "Кондитерские изделия";
+            Load += FormPastries_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonUpd;
+        private Button buttonDel;
+        private Button buttonRef;
+    }
+}

Confectionery/Confectionery/FormPastries.cs

@@ -0,0 +1,112 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryView
+{
+    public partial class FormPastries : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IPastryLogic _logic;
+        public FormPastries(ILogger<FormPastries> logger, IPastryLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+        private void FormPastries_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["PastryName"].AutoSizeMode = 
+                        DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["PastryComponents"].Visible = false;
+                }
+                _logger.LogInformation("Загрузка кондитерских изделий");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки кондитерских изделий");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, 
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(
+                typeof(FormPastry));
+            if (service is FormPastry form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(
+                    typeof(FormPastry));
+                if (service is FormPastry form)
+                {
+                    var tmp = Convert.ToInt32(
+                        dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    form.Id = Convert.ToInt32(
+                        dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", 
+                    MessageBoxButtons.YesNo, MessageBoxIcon.Question)
+                    == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(
+                        dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    _logger.LogInformation("Удаление кондитерского изделия");
+                    try
+                    {
+                        if (!_logic.Delete(new PastryBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении. " +
+                                "Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(
+                            ex, "Ошибка удаления кондитерского изделия");
+                        MessageBox.Show(
+                            ex.Message, "Ошибка", MessageBoxButtons.OK, 
+                            MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

Confectionery/Confectionery/FormPastries.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormPastry.Designer.cs

@@ -0,0 +1,239 @@
+namespace ConfectioneryView
+{
+    partial class FormPastry
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelPrice = new Label();
+            textBoxName = new TextBox();
+            textBoxPrice = new TextBox();
+            groupBox = new GroupBox();
+            buttonRef = new Button();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            id = new DataGridViewTextBoxColumn();
+            Component = new DataGridViewTextBoxColumn();
+            Count = new DataGridViewTextBoxColumn();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            groupBox.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(16, 21);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(94, 25);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название:";
+            // 
+            // labelPrice
+            // 
+            labelPrice.AutoSize = true;
+            labelPrice.Location = new Point(16, 66);
+            labelPrice.Name = "labelPrice";
+            labelPrice.Size = new Size(103, 25);
+            labelPrice.TabIndex = 1;
+            labelPrice.Text = "Стоимость:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxName.Location = new Point(170, 21);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(396, 31);
+            textBoxName.TabIndex = 2;
+            // 
+            // textBoxPrice
+            // 
+            textBoxPrice.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxPrice.Location = new Point(170, 66);
+            textBoxPrice.Name = "textBoxPrice";
+            textBoxPrice.Size = new Size(160, 31);
+            textBoxPrice.TabIndex = 3;
+            // 
+            // groupBox
+            // 
+            groupBox.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            groupBox.Controls.Add(buttonRef);
+            groupBox.Controls.Add(buttonDel);
+            groupBox.Controls.Add(buttonUpd);
+            groupBox.Controls.Add(buttonAdd);
+            groupBox.Controls.Add(dataGridView);
+            groupBox.Location = new Point(16, 112);
+            groupBox.Name = "groupBox";
+            groupBox.Size = new Size(850, 286);
+            groupBox.TabIndex = 4;
+            groupBox.TabStop = false;
+            groupBox.Text = "Компоненты";
+            // 
+            // buttonRef
+            // 
+            buttonRef.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonRef.Location = new Point(732, 215);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(112, 56);
+            buttonRef.TabIndex = 4;
+            buttonRef.Text = "Обновить";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += ButtonRef_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonDel.Location = new Point(732, 153);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(112, 56);
+            buttonDel.TabIndex = 3;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonUpd.Location = new Point(732, 91);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(112, 56);
+            buttonUpd.TabIndex = 2;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+            buttonAdd.Location = new Point(732, 29);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(112, 56);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.BackgroundColor = SystemColors.Window;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { id, Component, Count });
+            dataGridView.Location = new Point(6, 29);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(720, 251);
+            dataGridView.TabIndex = 0;
+            // 
+            // id
+            // 
+            id.HeaderText = "id";
+            id.MinimumWidth = 6;
+            id.Name = "id";
+            id.Visible = false;
+            // 
+            // Component
+            // 
+            Component.FillWeight = 200F;
+            Component.HeaderText = "Компонент";
+            Component.MinimumWidth = 6;
+            Component.Name = "Component";
+            // 
+            // Count
+            // 
+            Count.HeaderText = "Количество";
+            Count.MinimumWidth = 6;
+            Count.Name = "Count";
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonCancel.Location = new Point(754, 404);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(112, 34);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonSave.Location = new Point(636, 404);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(112, 34);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // FormPastry
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(878, 444);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(groupBox);
+            Controls.Add(textBoxPrice);
+            Controls.Add(textBoxName);
+            Controls.Add(labelPrice);
+            Controls.Add(labelName);
+            Name = "FormPastry";
+            Text = "Кондитерское изделие";
+            Load += FormPastry_Load;
+            Click += FormPastry_Load;
+            groupBox.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelPrice;
+        private TextBox textBoxName;
+        private TextBox textBoxPrice;
+        private GroupBox groupBox;
+        private Button buttonRef;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private DataGridViewTextBoxColumn id;
+        private DataGridViewTextBoxColumn Component;
+        private DataGridViewTextBoxColumn Count;
+    }
+}

Confectionery/Confectionery/FormPastry.cs

@@ -0,0 +1,226 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryDataModels.Models;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryView
+{
+    public partial class FormPastry : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IPastryLogic _logic;
+        private int? _id;
+        private Dictionary<int, (IComponentModel, int)> _pastryComponents;
+        public int Id { set { _id = value; } }
+        public FormPastry(ILogger<FormPastry> logger, IPastryLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _pastryComponents = new Dictionary<int, (IComponentModel, int)>();
+        }
+        private void FormPastry_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка кондитерского изделия");
+                try
+                {
+                    var view = _logic.ReadElement(new PastrySearchModel
+                    {
+                        Id = _id.Value
+                    });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.PastryName;
+                        textBoxPrice.Text = view.Price.ToString();
+                        _pastryComponents = view.PastryComponents ?? new 
+                            Dictionary<int, (IComponentModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(
+                        ex, "Ошибка загрузки кондитерского изделия");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                        MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка компонент кондитерского изделия");
+            try
+            {
+                if (_pastryComponents != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var pc in _pastryComponents)
+                    {
+                        dataGridView.Rows.Add(new object[] { pc.Key, 
+                            pc.Value.Item1.ComponentName, pc.Value.Item2 });
+                    }
+                    textBoxPrice.Text = CalcPrice().ToString();
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(
+                    ex, "Ошибка загрузки компонент кондитерского изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, 
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(
+                typeof(FormPastryComponent));
+            if (service is FormPastryComponent form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    if (form.ComponentModel == null)
+                    {
+                        return;
+                    }
+                    _logger.LogInformation("Добавление нового компонента: " +
+                        "{ ComponentName} - { Count}", 
+                        form.ComponentModel.ComponentName, form.Count);
+                    if (_pastryComponents.ContainsKey(form.Id))
+                    {
+                        _pastryComponents[form.Id] = (form.ComponentModel, 
+                            form.Count);
+                    }
+                    else
+                    {
+                        _pastryComponents.Add(form.Id, (form.ComponentModel, 
+                            form.Count));
+                    }
+                    LoadData();
+                }
+            }
+        }
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(
+                    typeof(FormPastryComponent));
+                if (service is FormPastryComponent form)
+                {
+                    int id = Convert.ToInt32(
+                        dataGridView.SelectedRows[0].Cells[0].Value);
+                    form.Id = id;
+                    form.Count = _pastryComponents[id].Item2;
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        if (form.ComponentModel == null)
+                        {
+                            return;
+                        }
+                        _logger.LogInformation("Изменение компонента: " +
+                            "{ ComponentName} - { Count}", 
+                            form.ComponentModel.ComponentName, form.Count);
+                        _pastryComponents[form.Id] = (form.ComponentModel, 
+                            form.Count);
+                        LoadData();
+                    }
+                }
+            }
+        }
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", 
+                    MessageBoxButtons.YesNo, MessageBoxIcon.Question) 
+                    == DialogResult.Yes)
+                {
+                    try
+                    {
+                        _logger.LogInformation(
+                            "Удаление компонента: { ComponentName} - { Count}", 
+                            dataGridView.SelectedRows[0].Cells[1].Value);
+                        _pastryComponents?.Remove(Convert.ToInt32(
+                            dataGridView.SelectedRows[0].Cells[0].Value));
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", 
+                            MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                    LoadData();
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(textBoxPrice.Text))
+            {
+                MessageBox.Show("Заполните цену", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (_pastryComponents == null || _pastryComponents.Count == 0)
+            {
+                MessageBox.Show("Заполните компоненты", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение кондитерского изделия");
+            try
+            {
+                var model = new PastryBindingModel
+                {
+                    Id = _id ?? 0,
+                    PastryName = textBoxName.Text,
+                    Price = Convert.ToDouble(textBoxPrice.Text),
+                    PastryComponents = _pastryComponents
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : 
+                    _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. " +
+                        "Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(
+                    ex, "Ошибка сохранения кондитерского изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, 
+                    MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+        private double CalcPrice()
+        {
+            double price = 0;
+            foreach (var elem in _pastryComponents)
+            {
+                price += ((elem.Value.Item1?.Cost ?? 0) * elem.Value.Item2);
+            }
+            return Math.Round(price * 1.1, 2);
+        }
+    }
+}

Confectionery/Confectionery/FormPastry.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="Count.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

Confectionery/Confectionery/FormPastryComponent.Designer.cs

@@ -0,0 +1,123 @@
+namespace ConfectioneryView
+{
+    partial class FormPastryComponent
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelComponent = new Label();
+            labelCount = new Label();
+            comboBoxComponent = new ComboBox();
+            textBoxCount = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            SuspendLayout();
+            // 
+            // labelComponent
+            // 
+            labelComponent.AutoSize = true;
+            labelComponent.Location = new Point(16, 21);
+            labelComponent.Name = "labelComponent";
+            labelComponent.Size = new Size(107, 25);
+            labelComponent.TabIndex = 0;
+            labelComponent.Text = "Компонент:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(16, 66);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(111, 25);
+            labelCount.TabIndex = 1;
+            labelCount.Text = "Количество:";
+            // 
+            // comboBoxComponent
+            // 
+            comboBoxComponent.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            comboBoxComponent.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxComponent.FormattingEnabled = true;
+            comboBoxComponent.Location = new Point(170, 21);
+            comboBoxComponent.Name = "comboBoxComponent";
+            comboBoxComponent.Size = new Size(396, 33);
+            comboBoxComponent.TabIndex = 2;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+            textBoxCount.Location = new Point(170, 66);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(396, 31);
+            textBoxCount.TabIndex = 3;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonCancel.Location = new Point(454, 148);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(112, 34);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonSave.Location = new Point(336, 148);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(112, 34);
+            buttonSave.TabIndex = 5;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // FormPastryComponent
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(578, 194);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxCount);
+            Controls.Add(comboBoxComponent);
+            Controls.Add(labelCount);
+            Controls.Add(labelComponent);
+            Name = "FormPastryComponent";
+            Text = "Компонент кондитерского изделия";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelComponent;
+        private Label labelCount;
+        private ComboBox comboBoxComponent;
+        private TextBox textBoxCount;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

Confectionery/Confectionery/FormPastryComponent.cs

@@ -0,0 +1,78 @@
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryView
+{
+    public partial class FormPastryComponent : Form
+    {
+        private readonly List<ComponentViewModel>? _list;
+        public int Id
+        {
+            get
+            {
+                return Convert.ToInt32(comboBoxComponent.SelectedValue);
+            }
+            set
+            {
+                comboBoxComponent.SelectedValue = value;
+            }
+        }
+        public IComponentModel? ComponentModel
+        {
+            get
+            {
+                if (_list == null)
+                {
+                    return null;
+                }
+                foreach (var elem in _list)
+                {
+                    if (elem.Id == Id)
+                    {
+                        return elem;
+                    }
+                }
+                return null;
+            }
+        }
+        public int Count
+        {
+            get { return Convert.ToInt32(textBoxCount.Text); }
+            set { textBoxCount.Text = value.ToString(); }
+        }
+        public FormPastryComponent(IComponentLogic logic)
+        {
+            InitializeComponent();
+            _list = logic.ReadList(null);
+            if (_list != null)
+            {
+                comboBoxComponent.DisplayMember = "ComponentName";
+                comboBoxComponent.ValueMember = "Id";
+                comboBoxComponent.DataSource = _list;
+                comboBoxComponent.SelectedItem = null;
+            }
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxComponent.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите компонент", "Ошибка", 
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

Confectionery/Confectionery/FormPastryComponent.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormSell.Designer.cs

@@ -0,0 +1,130 @@
+namespace ConfectioneryView
+{
+	partial class FormSell
+	{
+		/// <summary>
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Clean up any resources being used.
+		/// </summary>
+		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Windows Form Designer generated code
+
+		/// <summary>
+		/// Required method for Designer support - do not modify
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			comboBoxPastry = new ComboBox();
+			labelPastry = new Label();
+			labelCount = new Label();
+			textBoxCount = new TextBox();
+			buttonSave = new Button();
+			buttonCancel = new Button();
+			SuspendLayout();
+			// 
+			// comboBoxPastry
+			// 
+			comboBoxPastry.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			comboBoxPastry.DropDownStyle = ComboBoxStyle.DropDownList;
+			comboBoxPastry.FormattingEnabled = true;
+			comboBoxPastry.Location = new Point(245, 21);
+			comboBoxPastry.Margin = new Padding(4, 5, 4, 5);
+			comboBoxPastry.Name = "comboBoxPastry";
+			comboBoxPastry.Size = new Size(321, 33);
+			comboBoxPastry.TabIndex = 0;
+			// 
+			// labelPastry
+			// 
+			labelPastry.AutoSize = true;
+			labelPastry.Location = new Point(16, 21);
+			labelPastry.Margin = new Padding(4, 0, 4, 0);
+			labelPastry.Name = "labelPastry";
+			labelPastry.Size = new Size(201, 25);
+			labelPastry.TabIndex = 1;
+			labelPastry.Text = "Кондитерское изделие:";
+			// 
+			// labelCount
+			// 
+			labelCount.AutoSize = true;
+			labelCount.Location = new Point(16, 66);
+			labelCount.Margin = new Padding(4, 0, 4, 0);
+			labelCount.Name = "labelCount";
+			labelCount.Size = new Size(111, 25);
+			labelCount.TabIndex = 2;
+			labelCount.Text = "Количество:";
+			// 
+			// textBoxCount
+			// 
+			textBoxCount.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			textBoxCount.Location = new Point(245, 64);
+			textBoxCount.Margin = new Padding(4, 5, 4, 5);
+			textBoxCount.Name = "textBoxCount";
+			textBoxCount.Size = new Size(321, 31);
+			textBoxCount.TabIndex = 3;
+			// 
+			// buttonSave
+			// 
+			buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+			buttonSave.Location = new Point(336, 148);
+			buttonSave.Margin = new Padding(4, 5, 4, 5);
+			buttonSave.Name = "buttonSave";
+			buttonSave.Size = new Size(112, 34);
+			buttonSave.TabIndex = 4;
+			buttonSave.Text = "Сохранить";
+			buttonSave.UseVisualStyleBackColor = true;
+			buttonSave.Click += ButtonSave_Click;
+			// 
+			// buttonCancel
+			// 
+			buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+			buttonCancel.Location = new Point(454, 148);
+			buttonCancel.Margin = new Padding(4, 5, 4, 5);
+			buttonCancel.Name = "buttonCancel";
+			buttonCancel.Size = new Size(112, 34);
+			buttonCancel.TabIndex = 5;
+			buttonCancel.Text = "Отмена";
+			buttonCancel.UseVisualStyleBackColor = true;
+			buttonCancel.Click += ButtonCancel_Click;
+			// 
+			// FormSell
+			// 
+			AutoScaleDimensions = new SizeF(10F, 25F);
+			AutoScaleMode = AutoScaleMode.Font;
+			ClientSize = new Size(578, 194);
+			Controls.Add(buttonCancel);
+			Controls.Add(buttonSave);
+			Controls.Add(textBoxCount);
+			Controls.Add(labelCount);
+			Controls.Add(labelPastry);
+			Controls.Add(comboBoxPastry);
+			Margin = new Padding(4, 5, 4, 5);
+			Name = "FormSell";
+			Text = "Продажа";
+			ResumeLayout(false);
+			PerformLayout();
+		}
+
+		#endregion
+
+		private ComboBox comboBoxPastry;
+		private Label labelPastry;
+		private Label labelCount;
+		private TextBox textBoxCount;
+		private Button buttonSave;
+		private Button buttonCancel;
+	}
+}

Confectionery/Confectionery/FormSell.cs

@@ -0,0 +1,105 @@
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryView
+{
+	public partial class FormSell : Form
+	{
+		private readonly List<PastryViewModel>? _pastryList;
+		IShopLogic _shopLogic;
+		IPastryLogic _pastryLogic;
+		public FormSell(IPastryLogic PastryLogic, IShopLogic shopLogic)
+		{
+			InitializeComponent();
+			_shopLogic = shopLogic;
+			_pastryLogic = PastryLogic;
+			_pastryList = PastryLogic.ReadList(null);
+			if (_pastryList != null)
+			{
+				comboBoxPastry.DisplayMember = "PastryName";
+				comboBoxPastry.ValueMember = "Id";
+				comboBoxPastry.DataSource = _pastryList;
+				comboBoxPastry.SelectedItem = null;
+			}
+		}
+		public int PastryId
+		{
+			get
+			{
+				return Convert.ToInt32(comboBoxPastry.SelectedValue);
+			}
+			set
+			{
+				comboBoxPastry.SelectedValue = value;
+			}
+		}
+		public IPastryModel? PastryModel
+		{
+			get
+			{
+				if (_pastryList == null)
+				{
+					return null;
+				}
+				foreach (var elem in _pastryList)
+				{
+					if (elem.Id == PastryId)
+					{
+						return elem;
+					}
+				}
+				return null;
+			}
+		}
+		public int Count
+		{
+			get { return Convert.ToInt32(textBoxCount.Text); }
+			set
+			{ textBoxCount.Text = value.ToString(); }
+		}
+		private void ButtonCancel_Click(object sender, EventArgs e)
+		{
+			DialogResult = DialogResult.Cancel;
+			Close();
+		}
+		private void ButtonSave_Click(object sender, EventArgs e)
+		{
+			if (string.IsNullOrEmpty(textBoxCount.Text))
+			{
+				MessageBox.Show("Заполните поле Количество", "Ошибка",
+			   MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			if (comboBoxPastry.SelectedValue == null)
+			{
+				MessageBox.Show("Выберите кондитерское изделие", "Ошибка",
+			   MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			try
+			{
+				int count = Convert.ToInt32(textBoxCount.Text);
+				var pastry = _pastryLogic.ReadElement(new() { 
+					Id = Convert.ToInt32(comboBoxPastry.SelectedValue) });
+				if (pastry == null)
+					return;
+				bool res = _shopLogic.MakeSell(pastry, count);
+
+				if (!res)
+				{
+					throw new Exception("Ошибка при продаже.");
+				}
+
+				MessageBox.Show("Продажа прошла успешно");
+				DialogResult = DialogResult.OK;
+				Close();
+
+			}
+			catch (Exception err)
+			{
+				MessageBox.Show("Ошибка продажи");
+				return;
+			}
+		}
+	}
+}

Confectionery/Confectionery/FormSell.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormShop.Designer.cs

@@ -0,0 +1,237 @@
+namespace ConfectioneryView
+{
+	partial class FormShop
+	{
+		/// <summary>
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Clean up any resources being used.
+		/// </summary>
+		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Windows Form Designer generated code
+
+		/// <summary>
+		/// Required method for Designer support - do not modify
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			dateTimePicker = new DateTimePicker();
+			textBoxName = new TextBox();
+			textBoxAddress = new TextBox();
+			NameLabel = new Label();
+			AdressLabel = new Label();
+			DateLabel = new Label();
+			buttonSave = new Button();
+			buttonCancel = new Button();
+			dataGridView = new DataGridView();
+			ID = new DataGridViewTextBoxColumn();
+			PastryName = new DataGridViewTextBoxColumn();
+			Price = new DataGridViewTextBoxColumn();
+			Count = new DataGridViewTextBoxColumn();
+			CapacityUpDown = new NumericUpDown();
+			CapacityLabel = new Label();
+			((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+			((System.ComponentModel.ISupportInitialize)CapacityUpDown).BeginInit();
+			SuspendLayout();
+			// 
+			// dateTimePicker
+			// 
+			dateTimePicker.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			dateTimePicker.Location = new Point(170, 111);
+			dateTimePicker.Margin = new Padding(4, 5, 4, 5);
+			dateTimePicker.Name = "dateTimePicker";
+			dateTimePicker.Size = new Size(396, 31);
+			dateTimePicker.TabIndex = 0;
+			// 
+			// textBoxName
+			// 
+			textBoxName.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			textBoxName.Location = new Point(170, 21);
+			textBoxName.Margin = new Padding(4, 5, 4, 5);
+			textBoxName.Name = "textBoxName";
+			textBoxName.Size = new Size(396, 31);
+			textBoxName.TabIndex = 1;
+			// 
+			// textBoxAddress
+			// 
+			textBoxAddress.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			textBoxAddress.Location = new Point(170, 66);
+			textBoxAddress.Margin = new Padding(4, 5, 4, 5);
+			textBoxAddress.Name = "textBoxAddress";
+			textBoxAddress.Size = new Size(396, 31);
+			textBoxAddress.TabIndex = 2;
+			// 
+			// NameLabel
+			// 
+			NameLabel.AutoSize = true;
+			NameLabel.Location = new Point(16, 21);
+			NameLabel.Margin = new Padding(4, 0, 4, 0);
+			NameLabel.Name = "NameLabel";
+			NameLabel.Size = new Size(94, 25);
+			NameLabel.TabIndex = 3;
+			NameLabel.Text = "Название:";
+			// 
+			// AdressLabel
+			// 
+			AdressLabel.AutoSize = true;
+			AdressLabel.Location = new Point(16, 66);
+			AdressLabel.Margin = new Padding(4, 0, 4, 0);
+			AdressLabel.Name = "AdressLabel";
+			AdressLabel.Size = new Size(66, 25);
+			AdressLabel.TabIndex = 4;
+			AdressLabel.Text = "Адрес:";
+			// 
+			// DateLabel
+			// 
+			DateLabel.AutoSize = true;
+			DateLabel.Location = new Point(16, 111);
+			DateLabel.Margin = new Padding(4, 0, 4, 0);
+			DateLabel.Name = "DateLabel";
+			DateLabel.Size = new Size(53, 25);
+			DateLabel.TabIndex = 5;
+			DateLabel.Text = "Дата:";
+			// 
+			// buttonSave
+			// 
+			buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+			buttonSave.Location = new Point(636, 404);
+			buttonSave.Margin = new Padding(4, 5, 4, 5);
+			buttonSave.Name = "buttonSave";
+			buttonSave.Size = new Size(112, 34);
+			buttonSave.TabIndex = 6;
+			buttonSave.Text = "Сохранить";
+			buttonSave.UseVisualStyleBackColor = true;
+			buttonSave.Click += ButtonSave_Click;
+			// 
+			// buttonCancel
+			// 
+			buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+			buttonCancel.Location = new Point(754, 404);
+			buttonCancel.Margin = new Padding(4, 5, 4, 5);
+			buttonCancel.Name = "buttonCancel";
+			buttonCancel.Size = new Size(112, 34);
+			buttonCancel.TabIndex = 7;
+			buttonCancel.Text = "Отмена";
+			buttonCancel.UseVisualStyleBackColor = true;
+			buttonCancel.Click += ButtonCancel_Click;
+			// 
+			// dataGridView
+			// 
+			dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+			dataGridView.BackgroundColor = SystemColors.Window;
+			dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+			dataGridView.Columns.AddRange(new DataGridViewColumn[] { ID, PastryName, Price, Count });
+			dataGridView.Location = new Point(16, 202);
+			dataGridView.Margin = new Padding(4, 5, 4, 5);
+			dataGridView.Name = "dataGridView";
+			dataGridView.RowHeadersWidth = 51;
+			dataGridView.Size = new Size(850, 192);
+			dataGridView.TabIndex = 8;
+			// 
+			// ID
+			// 
+			ID.HeaderText = "id";
+			ID.MinimumWidth = 6;
+			ID.Name = "ID";
+			ID.Visible = false;
+			ID.Width = 125;
+			// 
+			// PastryName
+			// 
+			PastryName.HeaderText = "Название";
+			PastryName.MinimumWidth = 6;
+			PastryName.Name = "PastryName";
+			PastryName.ReadOnly = true;
+			PastryName.Width = 150;
+			// 
+			// Price
+			// 
+			Price.HeaderText = "Цена";
+			Price.MinimumWidth = 6;
+			Price.Name = "Price";
+			Price.ReadOnly = true;
+			Price.Width = 125;
+			// 
+			// Count
+			// 
+			Count.HeaderText = "Количество";
+			Count.MinimumWidth = 6;
+			Count.Name = "Count";
+			Count.ReadOnly = true;
+			Count.Width = 125;
+			// 
+			// CapacityUpDown
+			// 
+			CapacityUpDown.Location = new Point(170, 156);
+			CapacityUpDown.Maximum = new decimal(new int[] { 10000, 0, 0, 0 });
+			CapacityUpDown.Name = "CapacityUpDown";
+			CapacityUpDown.Size = new Size(120, 31);
+			CapacityUpDown.TabIndex = 9;
+			// 
+			// CapacityLabel
+			// 
+			CapacityLabel.AutoSize = true;
+			CapacityLabel.Location = new Point(16, 156);
+			CapacityLabel.Name = "CapacityLabel";
+			CapacityLabel.Size = new Size(121, 25);
+			CapacityLabel.TabIndex = 10;
+			CapacityLabel.Text = "Вместимость:";
+			// 
+			// FormShop
+			// 
+			AutoScaleDimensions = new SizeF(10F, 25F);
+			AutoScaleMode = AutoScaleMode.Font;
+			ClientSize = new Size(878, 444);
+			Controls.Add(dataGridView);
+			Controls.Add(buttonCancel);
+			Controls.Add(buttonSave);
+			Controls.Add(DateLabel);
+			Controls.Add(AdressLabel);
+			Controls.Add(NameLabel);
+			Controls.Add(textBoxAddress);
+			Controls.Add(textBoxName);
+			Controls.Add(dateTimePicker);
+			Controls.Add(CapacityLabel);
+			Controls.Add(CapacityUpDown);
+			Margin = new Padding(4, 5, 4, 5);
+			Name = "FormShop";
+			Text = "Магазин";
+			Load += FormShop_Load;
+			((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+			((System.ComponentModel.ISupportInitialize)CapacityUpDown).EndInit();
+			ResumeLayout(false);
+			PerformLayout();
+		}
+
+		#endregion
+
+		private DateTimePicker dateTimePicker;
+		private TextBox textBoxName;
+		private TextBox textBoxAddress;
+		private Label NameLabel;
+		private Label AdressLabel;
+		private Label DateLabel;
+		private Button buttonSave;
+		private Button buttonCancel;
+		private DataGridView dataGridView;
+		private DataGridViewTextBoxColumn ID;
+		private DataGridViewTextBoxColumn PastryName;
+		private DataGridViewTextBoxColumn Price;
+		private DataGridViewTextBoxColumn Count;
+		private NumericUpDown CapacityUpDown;
+		private Label CapacityLabel;
+	}
+}

Confectionery/Confectionery/FormShop.cs

@@ -0,0 +1,122 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System.Windows.Forms;
+namespace ConfectioneryView
+{
+	public partial class FormShop : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IShopLogic _logic;
+		public int? _id;
+		private Dictionary<int, (IPastryModel, int)> _pastries;
+		public FormShop(ILogger<FormShop> logger, IShopLogic logic)
+		{
+			InitializeComponent();
+			_logger = logger;
+			_logic = logic;
+		}
+		private void FormShop_Load(object sender, EventArgs e)
+		{
+			if (_id.HasValue)
+			{
+				_logger.LogInformation("Загрузка магазина");
+				try
+				{
+					var shop = _logic.ReadElement(
+						new ShopSearchModel { Id = _id });
+					if (shop != null)
+					{
+						textBoxName.Text = shop.ShopName;
+						textBoxAddress.Text = shop.Address;
+						dateTimePicker.Text = shop.DateOpen.ToString();
+						CapacityUpDown.Value = shop.MaxCapacity;
+						_pastries = shop.ShopPastries ?? 
+							new Dictionary<int, (IPastryModel, int)>();
+					}
+					LoadData();
+				}
+				catch (Exception ex)
+				{
+					_logger.LogError(ex, "Ошибка загрузки магазина");
+					MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+						MessageBoxIcon.Error);
+				}
+			}
+		}
+		private void LoadData()
+		{
+			_logger.LogInformation("Загрузка товаров магазина");
+			try
+			{
+				if (_pastries != null)
+				{
+					foreach (var Pastry in _pastries)
+					{
+						dataGridView.Rows.Add(new object[] {
+							Pastry.Key, Pastry.Value.Item1.PastryName,
+							Pastry.Value.Item1.Price, Pastry.Value.Item2 });
+					}
+				}
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(
+					ex, "Ошибка загрузки кондитерских изделий магазина");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, 
+					MessageBoxIcon.Error);
+			}
+		}
+		private void ButtonCancel_Click(object sender, EventArgs e)
+		{
+			DialogResult = DialogResult.Cancel;
+			Close();
+		}
+		private void ButtonSave_Click(object sender, EventArgs e)
+		{
+			if (string.IsNullOrEmpty(textBoxName.Text))
+			{
+				MessageBox.Show("Заполните название", "Ошибка",
+					MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			if (string.IsNullOrEmpty(textBoxAddress.Text))
+			{
+				MessageBox.Show("Заполните адрес", "Ошибка",
+					MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			_logger.LogInformation("Сохранение магазина");
+			try
+			{
+				var model = new ShopBindingModel
+				{
+					Id = _id ?? 0,
+					ShopName = textBoxName.Text,
+					Address = textBoxAddress.Text,
+					DateOpen = dateTimePicker.Value.Date,
+					MaxCapacity = Convert.ToInt32(CapacityUpDown.Value),
+				};
+				var operationResult = _id.HasValue ? _logic.Update(model) :
+					_logic.Create(model);
+				if (!operationResult)
+				{
+					throw new Exception("Ошибка при сохранении. " +
+						"Дополнительная информация в логах.");
+				}
+				MessageBox.Show("Сохранение прошло успешно", "Сообщение",
+					MessageBoxButtons.OK, MessageBoxIcon.Information);
+				DialogResult = DialogResult.OK;
+				Close();
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка сохранения магазина");
+				MessageBox.Show(ex.Message, "Ошибка",
+					MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+	}
+}

Confectionery/Confectionery/FormShop.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/FormShops.Designer.cs

@@ -0,0 +1,125 @@
+namespace ConfectioneryView
+{
+	partial class FormShops
+	{
+		/// <summary>
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Clean up any resources being used.
+		/// </summary>
+		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Windows Form Designer generated code
+
+		/// <summary>
+		/// Required method for Designer support - do not modify
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			dataGridView = new DataGridView();
+			buttonAdd = new Button();
+			buttonUpd = new Button();
+			buttonRef = new Button();
+			buttonDel = new Button();
+			((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+			SuspendLayout();
+			// 
+			// dataGridView
+			// 
+			dataGridView.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+			dataGridView.BackgroundColor = SystemColors.Window;
+			dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+			dataGridView.Location = new Point(0, 0);
+			dataGridView.Margin = new Padding(4, 5, 4, 5);
+			dataGridView.Name = "dataGridView";
+			dataGridView.RowHeadersWidth = 51;
+			dataGridView.Size = new Size(742, 444);
+			dataGridView.TabIndex = 0;
+			// 
+			// buttonAdd
+			// 
+			buttonAdd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+			buttonAdd.Location = new Point(754, 12);
+			buttonAdd.Margin = new Padding(4, 5, 4, 5);
+			buttonAdd.Name = "buttonAdd";
+			buttonAdd.Size = new Size(112, 56);
+			buttonAdd.TabIndex = 1;
+			buttonAdd.Text = "Добавить";
+			buttonAdd.UseVisualStyleBackColor = true;
+			buttonAdd.Click += ButtonAdd_Click;
+			// 
+			// buttonUpd
+			// 
+			buttonUpd.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+			buttonUpd.Location = new Point(754, 74);
+			buttonUpd.Margin = new Padding(4, 5, 4, 5);
+			buttonUpd.Name = "buttonUpd";
+			buttonUpd.Size = new Size(112, 56);
+			buttonUpd.TabIndex = 2;
+			buttonUpd.Text = "Изменить";
+			buttonUpd.UseVisualStyleBackColor = true;
+			buttonUpd.Click += ButtonUpd_Click;
+			// 
+			// buttonRef
+			// 
+			buttonRef.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+			buttonRef.Location = new Point(754, 136);
+			buttonRef.Margin = new Padding(4, 5, 4, 5);
+			buttonRef.Name = "buttonRef";
+			buttonRef.Size = new Size(112, 56);
+			buttonRef.TabIndex = 3;
+			buttonRef.Text = "Обновить";
+			buttonRef.UseVisualStyleBackColor = true;
+			buttonRef.Click += ButtonRef_Click;
+			// 
+			// buttonDel
+			// 
+			buttonDel.Anchor = AnchorStyles.Top | AnchorStyles.Right;
+			buttonDel.Location = new Point(754, 198);
+			buttonDel.Margin = new Padding(4, 5, 4, 5);
+			buttonDel.Name = "buttonDel";
+			buttonDel.Size = new Size(112, 56);
+			buttonDel.TabIndex = 4;
+			buttonDel.Text = "Удалить";
+			buttonDel.UseVisualStyleBackColor = true;
+			buttonDel.Click += ButtonDel_Click;
+			// 
+			// FormShops
+			// 
+			AutoScaleDimensions = new SizeF(10F, 25F);
+			AutoScaleMode = AutoScaleMode.Font;
+			ClientSize = new Size(878, 444);
+			Controls.Add(buttonDel);
+			Controls.Add(buttonRef);
+			Controls.Add(buttonUpd);
+			Controls.Add(buttonAdd);
+			Controls.Add(dataGridView);
+			Margin = new Padding(4, 5, 4, 5);
+			Name = "FormShops";
+			Text = "Магазины";
+			Load += FormShops_Load;
+			((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+			ResumeLayout(false);
+		}
+
+		#endregion
+
+		private DataGridView dataGridView;
+		private Button buttonAdd;
+		private Button buttonUpd;
+		private Button buttonRef;
+		private Button buttonDel;
+	}
+}

Confectionery/Confectionery/FormShops.cs

@@ -0,0 +1,116 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+using System.Windows.Forms;
+namespace ConfectioneryView
+{
+	public partial class FormShops : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IShopLogic _logic;
+		public FormShops(ILogger<FormShops> logger, IShopLogic logic)
+		{
+			InitializeComponent();
+			_logger = logger;
+			_logic = logic;
+		}
+		private void LoadData()
+		{
+			try
+			{
+				var list = _logic.ReadList(null);
+				if (list != null)
+				{
+					dataGridView.DataSource = list;
+					dataGridView.Columns["Id"].Visible = false;
+					dataGridView.Columns["ShopName"].AutoSizeMode =
+						DataGridViewAutoSizeColumnMode.Fill;
+					dataGridView.Columns["Address"].AutoSizeMode =
+						DataGridViewAutoSizeColumnMode.Fill;
+					dataGridView.Columns["DateOpen"].AutoSizeMode =
+						DataGridViewAutoSizeColumnMode.Fill;
+					dataGridView.Columns["ShopPastries"].Visible = false;
+				}
+				_logger.LogInformation("Загрузка магазинов");
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка загрузки магазинов");
+				MessageBox.Show(ex.Message, "Ошибка",
+					MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+		private void FormShops_Load(object sender, EventArgs e)
+		{
+			LoadData();
+		}
+		private void ButtonAdd_Click(object sender, EventArgs e)
+		{
+			var service =
+				Program.ServiceProvider?.GetService(typeof(FormShop));
+			if (service is FormShop form)
+			{
+				if (form.ShowDialog() == DialogResult.OK)
+				{
+					LoadData();
+				}
+			}
+		}
+		private void ButtonUpd_Click(object sender, EventArgs e)
+		{
+			if (dataGridView.SelectedRows.Count == 1)
+			{
+				var service =
+					Program.ServiceProvider?.GetService(typeof(FormShop));
+				if (service is FormShop form)
+				{
+					var tmp = Convert.ToInt32(
+						dataGridView.SelectedRows[0].Cells["Id"].Value);
+					form._id = Convert.ToInt32(
+						dataGridView.SelectedRows[0].Cells["Id"].Value);
+					if (form.ShowDialog() == DialogResult.OK)
+					{
+						LoadData();
+					}
+				}
+			}
+		}
+		private void ButtonRef_Click(object sender, EventArgs e)
+		{
+			LoadData();
+		}
+		private void ButtonDel_Click(object sender, EventArgs e)
+		{
+			if (dataGridView.SelectedRows.Count == 1)
+			{
+				if (MessageBox.Show("Удалить запись?", "Вопрос",
+					MessageBoxButtons.YesNo, MessageBoxIcon.Question)
+					== DialogResult.Yes)
+				{
+					int id = Convert.ToInt32(
+						dataGridView.SelectedRows[0].Cells["Id"].Value);
+					_logger.LogInformation("Удаление магазина");
+					try
+					{
+						if (!_logic.Delete(new ShopBindingModel
+						{
+							Id = id
+						}))
+						{
+							throw new Exception(
+								"Ошибка при удалении. " +
+								"Дополнительная информация в логах.");
+						}
+						LoadData();
+					}
+					catch (Exception ex)
+					{
+						_logger.LogError(ex, "Ошибка удаления магазина");
+						MessageBox.Show(ex.Message, "Ошибка",
+							MessageBoxButtons.OK, MessageBoxIcon.Error);
+					}
+				}
+			}
+		}
+	}
+}

Confectionery/Confectionery/FormSupply.Designer.cs

@@ -0,0 +1,157 @@
+namespace ConfectioneryView
+{
+	partial class FormSupply
+	{
+		/// <summary>
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Clean up any resources being used.
+		/// </summary>
+		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Windows Form Designer generated code
+
+		/// <summary>
+		/// Required method for Designer support - do not modify
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			comboBoxShop = new ComboBox();
+			comboBoxPastry = new ComboBox();
+			textBoxCount = new TextBox();
+			buttonSave = new Button();
+			buttonCancel = new Button();
+			labelShop = new Label();
+			labelPastry = new Label();
+			labelCount = new Label();
+			SuspendLayout();
+			// 
+			// comboBoxShop
+			// 
+			comboBoxShop.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			comboBoxShop.DropDownStyle = ComboBoxStyle.DropDownList;
+			comboBoxShop.FormattingEnabled = true;
+			comboBoxShop.Location = new Point(229, 21);
+			comboBoxShop.Margin = new Padding(4, 5, 4, 5);
+			comboBoxShop.Name = "comboBoxShop";
+			comboBoxShop.Size = new Size(337, 33);
+			comboBoxShop.TabIndex = 0;
+			// 
+			// comboBoxPastry
+			// 
+			comboBoxPastry.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			comboBoxPastry.DropDownStyle = ComboBoxStyle.DropDownList;
+			comboBoxPastry.FormattingEnabled = true;
+			comboBoxPastry.Location = new Point(229, 66);
+			comboBoxPastry.Margin = new Padding(4, 5, 4, 5);
+			comboBoxPastry.Name = "comboBoxPastry";
+			comboBoxPastry.Size = new Size(337, 33);
+			comboBoxPastry.TabIndex = 1;
+			// 
+			// textBoxCount
+			// 
+			textBoxCount.Anchor = AnchorStyles.Top | AnchorStyles.Left | AnchorStyles.Right;
+			textBoxCount.Location = new Point(229, 112);
+			textBoxCount.Margin = new Padding(4, 5, 4, 5);
+			textBoxCount.Name = "textBoxCount";
+			textBoxCount.Size = new Size(337, 31);
+			textBoxCount.TabIndex = 2;
+			// 
+			// buttonSave
+			// 
+			buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+			buttonSave.Location = new Point(336, 148);
+			buttonSave.Margin = new Padding(4, 5, 4, 5);
+			buttonSave.Name = "buttonSave";
+			buttonSave.Size = new Size(112, 34);
+			buttonSave.TabIndex = 3;
+			buttonSave.Text = "Сохранить";
+			buttonSave.UseVisualStyleBackColor = true;
+			buttonSave.Click += ButtonSave_Click;
+			// 
+			// buttonCancel
+			// 
+			buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+			buttonCancel.Location = new Point(454, 148);
+			buttonCancel.Margin = new Padding(4, 5, 4, 5);
+			buttonCancel.Name = "buttonCancel";
+			buttonCancel.Size = new Size(112, 34);
+			buttonCancel.TabIndex = 4;
+			buttonCancel.Text = "Отмена";
+			buttonCancel.UseVisualStyleBackColor = true;
+			buttonCancel.Click += ButtonCancel_Click;
+			// 
+			// labelShop
+			// 
+			labelShop.AutoSize = true;
+			labelShop.Location = new Point(16, 21);
+			labelShop.Margin = new Padding(4, 0, 4, 0);
+			labelShop.Name = "labelShop";
+			labelShop.Size = new Size(85, 25);
+			labelShop.TabIndex = 5;
+			labelShop.Text = "Магазин:";
+			// 
+			// labelPastry
+			// 
+			labelPastry.AutoSize = true;
+			labelPastry.Location = new Point(16, 66);
+			labelPastry.Margin = new Padding(4, 0, 4, 0);
+			labelPastry.Name = "labelPastry";
+			labelPastry.Size = new Size(201, 25);
+			labelPastry.TabIndex = 6;
+			labelPastry.Text = "Кондитерское изделие:";
+			// 
+			// labelCount
+			// 
+			labelCount.AutoSize = true;
+			labelCount.Location = new Point(16, 112);
+			labelCount.Margin = new Padding(4, 0, 4, 0);
+			labelCount.Name = "labelCount";
+			labelCount.Size = new Size(111, 25);
+			labelCount.TabIndex = 7;
+			labelCount.Text = "Количество:";
+			// 
+			// FormSupply
+			// 
+			AutoScaleDimensions = new SizeF(10F, 25F);
+			AutoScaleMode = AutoScaleMode.Font;
+			ClientSize = new Size(578, 194);
+			Controls.Add(labelCount);
+			Controls.Add(labelPastry);
+			Controls.Add(labelShop);
+			Controls.Add(buttonCancel);
+			Controls.Add(buttonSave);
+			Controls.Add(textBoxCount);
+			Controls.Add(comboBoxPastry);
+			Controls.Add(comboBoxShop);
+			Margin = new Padding(4, 5, 4, 5);
+			Name = "FormSupply";
+			Text = "Поставки";
+			ResumeLayout(false);
+			PerformLayout();
+		}
+
+		#endregion
+
+		private ComboBox comboBoxShop;
+		private ComboBox comboBoxPastry;
+		private TextBox textBoxCount;
+		private Button buttonSave;
+		private Button buttonCancel;
+		private Label labelShop;
+		private Label labelPastry;
+		private Label labelCount;
+	}
+}

Confectionery/Confectionery/FormSupply.cs

@@ -0,0 +1,132 @@
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryView
+{
+	public partial class FormSupply : Form
+	{
+		private readonly List<PastryViewModel>? _pastryList;
+		private readonly List<ShopViewModel>? _shopsList;
+		IShopLogic _shopLogic;
+		IPastryLogic _pastryLogic;
+		public int ShopId
+		{
+			get
+			{
+				return Convert.ToInt32(comboBoxShop.SelectedValue);
+			}
+			set
+			{
+				comboBoxShop.SelectedValue = value;
+			}
+		}
+		public int PastryId
+		{
+			get
+			{
+				return Convert.ToInt32(comboBoxPastry.SelectedValue);
+			}
+			set
+			{
+				comboBoxPastry.SelectedValue = value;
+			}
+		}
+		public IPastryModel? PastryModel
+		{
+			get
+			{
+				if (_pastryList == null)
+				{
+					return null;
+				}
+				foreach (var elem in _pastryList)
+				{
+					if (elem.Id == PastryId)
+					{
+						return elem;
+					}
+				}
+				return null;
+			}
+		}
+		public int Count
+		{
+			get { return Convert.ToInt32(textBoxCount.Text); }
+			set
+			{ textBoxCount.Text = value.ToString(); }
+		}
+		public FormSupply(IPastryLogic PastryLogic, IShopLogic shopLogic)
+		{
+			InitializeComponent();
+			_shopLogic = shopLogic;
+			_pastryLogic = PastryLogic;
+			_pastryList = PastryLogic.ReadList(null);
+			_shopsList = shopLogic.ReadList(null);
+			if (_pastryList != null)
+			{
+				comboBoxPastry.DisplayMember = "PastryName";
+				comboBoxPastry.ValueMember = "Id";
+				comboBoxPastry.DataSource = _pastryList;
+				comboBoxPastry.SelectedItem = null;
+			}
+			if (_shopsList != null)
+			{
+				comboBoxShop.DisplayMember = "ShopName";
+				comboBoxShop.ValueMember = "Id";
+				comboBoxShop.DataSource = _shopsList;
+				comboBoxShop.SelectedItem = null;
+			}
+		}
+		private void ButtonSave_Click(object sender, EventArgs e)
+		{
+			if (string.IsNullOrEmpty(textBoxCount.Text))
+			{
+				MessageBox.Show("Заполните поле Количество", "Ошибка",
+			   MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			if (comboBoxPastry.SelectedValue == null)
+			{
+				MessageBox.Show("Выберите кондитерское изделие", "Ошибка",
+			   MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			if (comboBoxShop.SelectedValue == null)
+			{
+				MessageBox.Show("Выберите магазин", "Ошибка",
+			   MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			try
+			{
+				int count = Convert.ToInt32(textBoxCount.Text);
+				bool res = _shopLogic.MakeSupply(
+					new ShopSearchModel()
+					{ Id = Convert.ToInt32(comboBoxShop.SelectedValue) },
+					_pastryLogic.ReadElement(new()
+					{ Id = Convert.ToInt32(comboBoxPastry.SelectedValue) }),
+					count
+				);
+				if (!res)
+				{
+					throw new Exception("Ошибка при пополнении. " +
+						"Дополнительная информация в логах");
+				}
+				MessageBox.Show("Пополнение прошло успешно");
+				DialogResult = DialogResult.OK;
+				Close();
+			}
+			catch (Exception err)
+			{
+				MessageBox.Show("Ошибка пополнения");
+				return;
+			}
+		}
+		private void ButtonCancel_Click(object sender, EventArgs e)
+		{
+			DialogResult = DialogResult.Cancel;
+			Close();
+		}
+	}
+}

Confectionery/Confectionery/FormSupply.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Confectionery/Confectionery/Program.cs

@@ -1,17 +1,57 @@
-namespace Confectionery
+using ConfectioneryBusinessLogic.BusinessLogics;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryFileImplement.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+namespace ConfectioneryView
 {
     internal static class Program
     {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
-        ///  The main entry point for the application.
+        /// The main entry point for the application.
         /// </summary>
         [STAThread]
         static void Main()
         {
-            // To customize application configuration such as set high DPI settings or default font,
-            // see https://aka.ms/applicationconfiguration.
+            // To customize application configuration such as set high DPI
+            // settings or default font, see
+            // https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+            var services = new ServiceCollection();
+            ConfigureServices(services);
+            _serviceProvider = services.BuildServiceProvider();
+            Application.Run(_serviceProvider.GetRequiredService<FormMain>());
         }
+        private static void ConfigureServices(ServiceCollection services)
+        {
+            services.AddLogging(option =>
+            {
+                option.SetMinimumLevel(LogLevel.Information);
+                option.AddNLog("nlog.config");
+            });
+            services.AddTransient<IComponentStorage, ComponentStorage>();
+            services.AddTransient<IOrderStorage, OrderStorage>();
+            services.AddTransient<IPastryStorage, PastryStorage>();
+			services.AddTransient<IShopStorage, ShopStorage>();
+			services.AddTransient<IComponentLogic, ComponentLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IPastryLogic, PastryLogic>();
+			services.AddTransient<IShopLogic, ShopLogic>();
+			services.AddTransient<FormMain>();
+            services.AddTransient<FormComponent>();
+            services.AddTransient<FormComponents>();
+            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormPastry>();
+            services.AddTransient<FormPastryComponent>();
+            services.AddTransient<FormPastries>();
+			services.AddTransient<FormShop>();
+			services.AddTransient<FormShops>();
+			services.AddTransient<FormSupply>();
+			services.AddTransient<FormSell>();
+		}
     }
-}
+}

Confectionery/ConfectioneryBusinessLogic/BusinessLogics/ComponentLogic.cs

@@ -0,0 +1,119 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryBusinessLogic.BusinessLogics
+{
+    public class ComponentLogic : IComponentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentStorage _componentStorage;
+        public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage
+            componentStorage)
+        {
+            _logger = logger;
+            _componentStorage = componentStorage;
+        }
+        public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
+        {
+            _logger.LogInformation(
+                "ReadList. ComponentName:{ComponentName}.Id:{ Id}",
+                model?.ComponentName, model?.Id);
+            var list = model == null ? _componentStorage.GetFullList() : 
+                _componentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public ComponentViewModel? ReadElement(ComponentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation(
+                "ReadElement. ComponentName:{ComponentName}.Id:{ Id}",
+                model.ComponentName, model.Id);
+            var element = _componentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+        public bool Create(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(ComponentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_componentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(ComponentBindingModel model, 
+            bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                throw new ArgumentNullException("Нет названия компонента", 
+                    nameof(model.ComponentName));
+            }
+            if (model.Cost <= 0)
+            {
+                throw new ArgumentNullException(
+                    "Цена компонента должна быть больше 0", 
+                    nameof(model.Cost));
+            }
+            _logger.LogInformation(
+                "Component. ComponentName:{ComponentName}.Cost:{ Cost}." +
+                " Id: { Id}", model.ComponentName, model.Cost, model.Id);
+            var element = _componentStorage.GetElement(new ComponentSearchModel
+            {
+                ComponentName = model.ComponentName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+               throw new InvalidOperationException(
+                   "Компонент с таким названием уже есть");
+            }
+        }
+    }
+}

Confectionery/ConfectioneryBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -0,0 +1,197 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryBusinessLogic.BusinessLogics
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+		private readonly IShopStorage _shopStorage;
+		private readonly IShopLogic _shopLogic;
+		private readonly IPastryStorage _pastryStorage;
+		public OrderLogic(ILogger<OrderLogic> logger, 
+            IOrderStorage orderStorage, IShopStorage shopStorage,
+			IShopLogic shopLogic, IPastryStorage pastryStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+			_shopStorage = shopStorage;
+			_shopLogic = shopLogic;
+			_pastryStorage = pastryStorage;
+		}
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{ Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() : 
+                _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (model.Status != OrderStatus.Неизвестен) return false;
+            model.Status = OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+		private bool ChangeStatus(OrderBindingModel model, OrderStatus status)
+        {
+            CheckModel(model);
+            var element = _orderStorage.GetElement(
+                new OrderSearchModel { Id = model.Id });
+            if (element == null)
+            {
+                _logger.LogWarning("Read operation failed");
+                return false;
+            }
+            if (element.Status != status - 1)
+            {
+                _logger.LogWarning("Status change operation failed");
+                throw new InvalidOperationException("Текущий статус заказа" +
+                    " не может быть переведен в выбранный");
+            }
+			if (element.Status == OrderStatus.Готов)
+			{
+				var pastry = _pastryStorage.GetElement(new PastrySearchModel() 
+                { Id = model.PastryId });
+				if (pastry == null)
+				{
+					_logger.LogWarning("Status update to " + 
+                        status.ToString() + 
+                        " operation failed. Document not found.");
+					return false;
+				}
+				if (CheckSupply(pastry, model.Count) == false)
+				{
+					_logger.LogWarning("Status update to " + 
+                        status.ToString() + 
+                        " operation failed. Shop supply error.");
+					return false;
+				}
+			}
+			model.Status = status;
+            if (model.Status == OrderStatus.Выдан) 
+                model.DateImplement = DateTime.Now;
+            _orderStorage.Update(model);
+            return true;
+        }
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выполняется);
+        }
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Готов);
+        }
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выдан);
+        }
+        private void CheckModel(OrderBindingModel model, 
+            bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException(
+                    "Цена заказа должна быть больше 0", nameof(model.Sum));
+            }
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException(
+                    "Количество элементов в заказе должно быть больше 0", 
+                    nameof(model.Count));
+            }
+            _logger.LogInformation("Order. Sum:{ Cost}. Id: { Id}",
+                model.Sum, model.Id);
+        }
+		private bool CheckSupply(IPastryModel Pastry, int count)
+		{
+			if (count <= 0)
+			{
+				_logger.LogWarning(
+                    "Check then supply operation error. Pastry count < 0.");
+				return false;
+			}
+
+			int sumCapacity = 0;
+			int sumCount = 0;
+			sumCapacity = _shopStorage.GetFullList()
+                .Select(x => x.MaxCapacity).Sum();
+			sumCount = _shopStorage.GetFullList()
+                .Select(x => x.ShopPastries
+                .Select(y => y.Value.Item2).Sum()).Sum();
+			int freeSpace = sumCapacity - sumCount;
+
+			if (freeSpace - count < 0)
+			{
+				_logger.LogWarning("Check then supply operation error. " +
+                    "There's no place for new Pastry in shops.");
+				return false;
+			}
+
+			foreach (var shop in _shopStorage.GetFullList())
+			{
+				freeSpace = shop.MaxCapacity;
+				foreach (var doc in shop.ShopPastries)
+				{
+					freeSpace -= doc.Value.Item2;
+				}
+				if (freeSpace == 0)
+				{
+					continue;
+				}
+				if (freeSpace - count >= 0)
+				{
+					if (_shopLogic.MakeSupply(new() { Id = shop.Id }, 
+                        Pastry, count))
+						count = 0;
+					else
+					{
+						_logger.LogWarning("Supply error");
+						return false;
+					}
+				}
+				if (freeSpace - count < 0)
+				{
+					if (_shopLogic.MakeSupply(new() { Id = shop.Id }, 
+                        Pastry, freeSpace))
+						count -= freeSpace;
+					else
+					{
+						_logger.LogWarning("Supply error");
+						return false;
+					}
+				}
+				if (count <= 0)
+				{
+					return true;
+				}
+			}
+			return false;
+		}
+	}
+}

Confectionery/ConfectioneryBusinessLogic/BusinessLogics/PastryLogic.cs

@@ -0,0 +1,119 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryBusinessLogic.BusinessLogics
+{
+    public class PastryLogic : IPastryLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IPastryStorage _PastryStorage;
+        public PastryLogic(ILogger<PastryLogic> logger, 
+            IPastryStorage PastryStorage)
+        {
+            _logger = logger;
+            _PastryStorage = PastryStorage;
+        }
+        public List<PastryViewModel>? ReadList(PastrySearchModel? model)
+        {
+            _logger.LogInformation(
+                "ReadList. PastryName:{PastryName}. Id:{ Id}", 
+                model?.PastryName, model?.Id);
+            var list = model == null ? _PastryStorage.GetFullList() 
+                : _PastryStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public PastryViewModel? ReadElement(PastrySearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation(
+                "ReadElement. PastryName:{PastryName}.Id:{ Id}", 
+                model.PastryName, model.Id);
+            var element = _PastryStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+        public bool Create(PastryBindingModel model)
+        {
+            CheckModel(model);
+            if (_PastryStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(PastryBindingModel model)
+        {
+            CheckModel(model);
+            if (_PastryStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(PastryBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_PastryStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(PastryBindingModel model, 
+            bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.PastryName))
+            {
+                throw new ArgumentNullException("Нет названия кондитерского " +
+                    "изделия", nameof(model.PastryName));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException(
+                    "Цена кондитерского изделия должна быть больше 0", 
+                    nameof(model.Price));
+            }
+            _logger.LogInformation(
+                "Pastry. Pastry:{Pastry}. Price:{ Price }. Id: { Id}", 
+                model.PastryName, model.Price, model.Id);
+            var element = _PastryStorage.GetElement(new PastrySearchModel
+            {
+                PastryName = model.PastryName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException(
+                    "Кондитерское изделие с таким названием уже есть");
+            }
+        }
+    }
+}

Confectionery/ConfectioneryBusinessLogic/BusinessLogics/ShopLogic.cs

@@ -0,0 +1,178 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.BusinessLogicsContracts;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using Microsoft.Extensions.Logging;
+namespace ConfectioneryBusinessLogic.BusinessLogics
+{
+	public class ShopLogic : IShopLogic
+	{
+		private readonly ILogger _logger;
+		private readonly IShopStorage _shopStorage;
+		public ShopLogic(ILogger<ShopLogic> logger, IShopStorage shopStorage)
+		{
+			_logger = logger;
+			_shopStorage = shopStorage;
+		}
+		public List<ShopViewModel> ReadList(ShopSearchModel model)
+		{
+			_logger.LogInformation("ReadList. ShopName:{Name}. Id:{ Id}", 
+				model?.Name, model?.Id);
+			var list = model == null ? _shopStorage.GetFullList() : 
+				_shopStorage.GetFilteredList(model);
+			if (list == null)
+			{
+				_logger.LogWarning("ReadList return null list");
+				return null;
+			}
+			_logger.LogInformation("ReadList. Count:{Count}", list.Count);
+			return list;
+		}
+		public bool MakeSupply(ShopSearchModel model, 
+			IPastryModel pastry, int count)
+		{
+			if (model == null)
+				throw new ArgumentNullException(nameof(model));
+			if (pastry == null)
+				throw new ArgumentNullException(nameof(pastry));
+			if (count <= 0)
+				throw new ArgumentNullException(
+					"Количество должно быть положительным числом");
+
+			ShopViewModel curModel = _shopStorage.GetElement(model);
+			if (curModel == null)
+				throw new ArgumentNullException(nameof(curModel));
+			var countItems = curModel.ShopPastries
+				.Select(x => x.Value.Item2).Sum();
+			if (curModel.MaxCapacity - countItems >= count)
+			{
+				if (curModel.ShopPastries.TryGetValue(
+					pastry.Id, out var sameDocument))
+				{
+					curModel.ShopPastries[pastry.Id] = 
+						(pastry, sameDocument.Item2 + count);
+					_logger.LogInformation(
+						"Same pastry found by supply. " +
+						"Added {0} of {1} in {2} shop", count, 
+						pastry.PastryName, curModel.ShopName);
+				}
+				else
+				{
+					curModel.ShopPastries[pastry.Id] = (pastry, count);
+					_logger.LogInformation("New pastry added by supply. " +
+						"Added {0} of {1} in {2} shop", count, 
+						pastry.PastryName, curModel.ShopName);
+				}
+				_shopStorage.Update(new()
+				{
+					Id = curModel.Id,
+					ShopName = curModel.ShopName,
+					Address = curModel.Address,
+					DateOpen = curModel.DateOpen,
+					ShopPastries = curModel.ShopPastries,
+					MaxCapacity = curModel.MaxCapacity
+				});
+			}
+			else
+			{
+				_logger.LogWarning("Required shop is overflowed");
+				return false;
+			}
+			return true;
+		}
+		public ShopViewModel ReadElement(ShopSearchModel model)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			_logger.LogInformation(
+				"ReadElement. ShopName:{ShopName}.Id:{ Id}", 
+				model.Name, model.Id);
+			var element = _shopStorage.GetElement(model);
+			if (element == null)
+			{
+				_logger.LogWarning("ReadElement element not found");
+				return null;
+			}
+			_logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+			return element;
+		}
+		public bool Create(ShopBindingModel model)
+		{
+			CheckModel(model);
+			if (_shopStorage.Insert(model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Update(ShopBindingModel model)
+		{
+			CheckModel(model);
+			if (_shopStorage.Update(model) == null)
+			{
+				_logger.LogWarning("Update operation failed");
+				return false;
+			}
+			return true;
+		}
+		public bool Delete(ShopBindingModel model)
+		{
+			CheckModel(model, false);
+			_logger.LogInformation("Delete. Id:{Id}", model.Id);
+			if (_shopStorage.Delete(model) == null)
+			{
+				_logger.LogWarning("Delete operation failed");
+				return false;
+			}
+			return true;
+		}
+		private void CheckModel(ShopBindingModel model, bool withParams = true)
+		{
+			if (model == null)
+			{
+				throw new ArgumentNullException(nameof(model));
+			}
+			if (!withParams)
+			{
+				return;
+			}
+			if (string.IsNullOrEmpty(model.ShopName))
+			{
+				throw new ArgumentNullException("Нет названия магазина", 
+					nameof(model.ShopName));
+			}
+			if (string.IsNullOrEmpty(model.Address))
+			{
+				throw new ArgumentNullException("Нет адресса магазина", 
+					nameof(model.Address));
+			}
+			if (model.DateOpen == null)
+			{
+				throw new ArgumentNullException("Нет даты открытия магазина", 
+					nameof(model.DateOpen));
+			}
+			_logger.LogInformation(
+				"Shop. ShopName:{ShopName}.Address:{Address}. " +
+				"DateOpen:{DateOpen}. Id: { Id}", model.ShopName, 
+				model.Address, model.DateOpen, model.Id);
+			var element = _shopStorage.GetElement(new ShopSearchModel
+			{
+				Name = model.ShopName
+			});
+			if (element != null && element.Id != model.Id)
+			{
+				throw new InvalidOperationException(
+					"Магазин с таким названием уже есть");
+			}
+		}
+		public bool MakeSell(IPastryModel pastry, int count)
+		{
+			return _shopStorage.SellPastries(pastry, count);
+		}
+	}
+}

Confectionery/ConfectioneryBusinessLogic/ConfectioneryBusinessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.ApplicationInsights" Version="2.22.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConfectioneryContracts\ConfectioneryContracts.csproj" />
+  </ItemGroup>
+
+</Project>

Confectionery/ConfectioneryContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,10 @@
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryContracts.BindingModels
+{
+    public class ComponentBindingModel : IComponentModel
+    {
+        public int Id { get; set; }
+        public string ComponentName { get; set; } = string.Empty;
+        public double Cost { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,15 @@
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { get; set; }
+        public int PastryId { get; set; }
+        public int Count { get; set; }
+        public double Sum { get; set; }
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime? DateImplement { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/BindingModels/PastryBindingModel.cs

@@ -0,0 +1,15 @@
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryContracts.BindingModels
+{
+    public class PastryBindingModel : IPastryModel
+    {
+        public int Id { get; set; }
+        public string PastryName { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> PastryComponents
+        {
+            get;
+            set;
+        } = new();
+    }
+}

Confectionery/ConfectioneryContracts/BindingModels/ShopBindingModel.cs

@@ -0,0 +1,14 @@
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryContracts.BindingModels
+{
+	public class ShopBindingModel : IShopModel
+	{
+		public int Id { get; set; }
+		public string ShopName { get; set; } = string.Empty;
+		public string Address { get; set; } = string.Empty;
+		public DateTime DateOpen { get; set; }
+		public int MaxCapacity { get; set; }
+		public Dictionary<int, (IPastryModel, int)>
+			ShopPastries { get; set; } = new();
+	}
+}

Confectionery/ConfectioneryContracts/BusinessLogicsContracts/IComponentLogic.cs

@@ -0,0 +1,14 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.BusinessLogicsContracts
+{
+    public interface IComponentLogic
+    {
+        List<ComponentViewModel>? ReadList(ComponentSearchModel? model);
+        ComponentViewModel? ReadElement(ComponentSearchModel model);
+        bool Create(ComponentBindingModel model);
+        bool Update(ComponentBindingModel model);
+        bool Delete(ComponentBindingModel model);
+    }
+}

Confectionery/ConfectioneryContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,15 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.BusinessLogicsContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}
+

Confectionery/ConfectioneryContracts/BusinessLogicsContracts/IPastryLogic.cs

@@ -0,0 +1,14 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.BusinessLogicsContracts
+{
+    public interface IPastryLogic
+    {
+        List<PastryViewModel>? ReadList(PastrySearchModel? model);
+        PastryViewModel? ReadElement(PastrySearchModel model);
+        bool Create(PastryBindingModel model);
+        bool Update(PastryBindingModel model);
+        bool Delete(PastryBindingModel model);
+    }
+}

Confectionery/ConfectioneryContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -0,0 +1,17 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryContracts.BusinessLogicsContracts
+{
+	public interface IShopLogic
+	{
+		List<ShopViewModel>? ReadList(ShopSearchModel? model);
+		ShopViewModel? ReadElement(ShopSearchModel model);
+		bool Create(ShopBindingModel model);
+		bool Update(ShopBindingModel model);
+		bool Delete(ShopBindingModel model);
+		bool MakeSupply(ShopSearchModel model, IPastryModel pastry, int count);
+		bool MakeSell(IPastryModel pastry, int count);
+	}
+}

Confectionery/ConfectioneryContracts/ConfectioneryContracts.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConfectioneryDataModels\ConfectioneryDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Confectionery/ConfectioneryContracts/SearchModels/ComponentSearchModel.cs

@@ -0,0 +1,8 @@
+namespace ConfectioneryContracts.SearchModels
+{
+    public class ComponentSearchModel
+    {
+        public int? Id { get; set; }
+        public string? ComponentName { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/SearchModels/OrderSearchModel.cs

@@ -0,0 +1,7 @@
+namespace ConfectioneryContracts.SearchModels
+{
+    public class OrderSearchModel
+    {
+        public int? Id { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/SearchModels/PastrySearchModel.cs

@@ -0,0 +1,8 @@
+namespace ConfectioneryContracts.SearchModels
+{
+    public class PastrySearchModel
+    {
+        public int? Id { get; set; }
+        public string? PastryName { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/SearchModels/ShopSearchModel.cs

@@ -0,0 +1,8 @@
+namespace ConfectioneryContracts.SearchModels
+{
+	public class ShopSearchModel
+	{
+		public int? Id { get; set; }
+		public string? Name { get; set; }
+	}
+}

Confectionery/ConfectioneryContracts/StoragesContracts/IComponentStorage.cs

@@ -0,0 +1,16 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.StoragesContracts
+{
+    public interface IComponentStorage
+    {
+        List<ComponentViewModel> GetFullList();
+        List<ComponentViewModel> GetFilteredList(ComponentSearchModel model);
+        ComponentViewModel? GetElement(ComponentSearchModel model);
+        ComponentViewModel? Insert(ComponentBindingModel model);
+        ComponentViewModel? Update(ComponentBindingModel model);
+        ComponentViewModel? Delete(ComponentBindingModel model);
+    }
+}
+

Confectionery/ConfectioneryContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,15 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.StoragesContracts
+{
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+        List<OrderViewModel> GetFilteredList(OrderSearchModel model);
+        OrderViewModel? GetElement(OrderSearchModel model);
+        OrderViewModel? Insert(OrderBindingModel model);
+        OrderViewModel? Update(OrderBindingModel model);
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}

Confectionery/ConfectioneryContracts/StoragesContracts/IPastryStorage.cs

@@ -0,0 +1,15 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.StoragesContracts
+{
+    public interface IPastryStorage
+    {
+        List<PastryViewModel> GetFullList();
+        List<PastryViewModel> GetFilteredList(PastrySearchModel model);
+        PastryViewModel? GetElement(PastrySearchModel model);
+        PastryViewModel? Insert(PastryBindingModel model);
+        PastryViewModel? Update(PastryBindingModel model);
+        PastryViewModel? Delete(PastryBindingModel model);
+    }
+}

Confectionery/ConfectioneryContracts/StoragesContracts/IShopStorage.cs

@@ -0,0 +1,17 @@
+using ConfectioneryDataModels.Models;
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.ViewModels;
+namespace ConfectioneryContracts.StoragesContracts
+{
+	public interface IShopStorage
+	{
+		List<ShopViewModel> GetFullList();
+		List<ShopViewModel> GetFilteredList(ShopSearchModel model);
+		ShopViewModel? GetElement(ShopSearchModel model);
+		ShopViewModel? Insert(ShopBindingModel model);
+		ShopViewModel? Update(ShopBindingModel model);
+		ShopViewModel? Delete(ShopBindingModel model);
+		public bool SellPastries(IPastryModel model, int count);
+	}
+}

Confectionery/ConfectioneryContracts/ViewModels/ComponentViewModel.cs

@@ -0,0 +1,13 @@
+using ConfectioneryDataModels.Models;
+using System.ComponentModel;
+namespace ConfectioneryContracts.ViewModels
+{
+    public class ComponentViewModel : IComponentModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название компонента")]
+        public string ComponentName { get; set; } = string.Empty;
+        [DisplayName("Цена")]
+        public double Cost { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,24 @@
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+using System.ComponentModel;
+namespace ConfectioneryContracts.ViewModels
+{
+    public class OrderViewModel : IOrderModel
+    {
+        [DisplayName("Номер")]
+        public int Id { get; set; }
+        public int PastryId { get; set; }
+        [DisplayName("Изделие")]
+        public string PastryName { get; set; } = string.Empty;
+        [DisplayName("Количество")]
+        public int Count { get; set; }
+        [DisplayName("Сумма")]
+        public double Sum { get; set; }
+        [DisplayName("Статус")]
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        [DisplayName("Дата создания")]
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        [DisplayName("Дата выполнения")]
+        public DateTime? DateImplement { get; set; }
+    }
+}

Confectionery/ConfectioneryContracts/ViewModels/PastryViewModel.cs

@@ -0,0 +1,15 @@
+using ConfectioneryDataModels.Models;
+using System.ComponentModel;
+namespace ConfectioneryContracts.ViewModels
+{
+    public class PastryViewModel : IPastryModel
+    {
+        public int Id { get; set; } 
+        [DisplayName("Название кондитерского изделия")]
+        public string PastryName { get; set; } = string.Empty; 
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> 
+            PastryComponents { get; set; } = new();
+    }
+}

Confectionery/ConfectioneryContracts/ViewModels/ShopViewModel.cs

@@ -0,0 +1,19 @@
+using ConfectioneryDataModels.Models;
+using System.ComponentModel;
+namespace ConfectioneryContracts.ViewModels
+{
+	public class ShopViewModel : IShopModel
+	{
+		public int Id { get; set; }
+		[DisplayName("Название магазина")]
+		public string ShopName { get; set; } = string.Empty;
+		[DisplayName("Адрес магазина")]
+		public string Address { get; set; } = string.Empty;
+		[DisplayName("Дата открытия")]
+		public DateTime DateOpen { get; set; }
+		[DisplayName("Вместимость")]
+		public int MaxCapacity { get; set; }
+		public Dictionary<int, (IPastryModel, int)>
+			ShopPastries { get; set; } = new();
+	}
+}

Confectionery/ConfectioneryDataModels/ConfectioneryDataModels.csproj

@@ -1,11 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <OutputType>WinExe</OutputType>
-    <TargetFramework>net8.0-windows</TargetFramework>
-    <Nullable>enable</Nullable>
-    <UseWindowsForms>true</UseWindowsForms>
+    <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
-</Project>
+</Project>

Confectionery/ConfectioneryDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,11 @@
+namespace ConfectioneryDataModels.Enums
+{
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+        Принят = 0,
+        Выполняется = 1,
+        Готов = 2,
+        Выдан = 3
+    }
+}

Confectionery/ConfectioneryDataModels/IId.cs

@@ -0,0 +1,7 @@
+namespace ConfectioneryDataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}

Confectionery/ConfectioneryDataModels/Models/IComponentModel.cs

@@ -0,0 +1,8 @@
+namespace ConfectioneryDataModels.Models
+{
+    public interface IComponentModel : IId
+    {
+        string ComponentName { get; }
+        double Cost { get; }
+    }
+}

Confectionery/ConfectioneryDataModels/Models/IOrderModel.cs

@@ -0,0 +1,13 @@
+using ConfectioneryDataModels.Enums;
+namespace ConfectioneryDataModels.Models
+{
+    public interface IOrderModel : IId
+    {
+        int PastryId { get; }
+        int Count { get; }
+        double Sum { get; }
+        OrderStatus Status { get; }
+        DateTime DateCreate { get; }
+        DateTime? DateImplement { get; }
+    }
+}

Confectionery/ConfectioneryDataModels/Models/IPastryModel.cs

@@ -0,0 +1,9 @@
+namespace ConfectioneryDataModels.Models
+{
+    public interface IPastryModel : IId
+    {
+        string PastryName { get; }
+        double Price { get; }
+        Dictionary<int, (IComponentModel, int)> PastryComponents { get; }
+    }
+}

Confectionery/ConfectioneryDataModels/Models/IShopModel.cs

@@ -0,0 +1,11 @@
+namespace ConfectioneryDataModels.Models
+{
+	public interface IShopModel : IId
+	{
+		string ShopName { get; }
+		string Address { get; }
+		DateTime DateOpen { get; }
+		int MaxCapacity { get; }
+		Dictionary<int, (IPastryModel, int)> ShopPastries { get; }
+	}
+}

Confectionery/ConfectioneryFileImplement/ConfectioneryFileImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\ConfectioneryContracts\ConfectioneryContracts.csproj" />
+		<ProjectReference Include="..\ConfectioneryDataModels\ConfectioneryDataModels.csproj" />
+	</ItemGroup>
+
+</Project>

Confectionery/ConfectioneryFileImplement/DataFileSingleton.cs

@@ -0,0 +1,63 @@
+using ConfectioneryFileImplement.Models;
+using System.Xml.Linq;
+namespace ConfectioneryFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string PastryFileName = "Pastry.xml";
+		private readonly string ShopFileName = "Shops.xml";
+		public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Pastry> Pastries { get; private set; }
+		public List<Shop> Shops { get; private set; }
+		public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName,
+            "Components", x => x.GetXElement);
+        public void SavePastries() => SaveData(Pastries, PastryFileName,
+            "Pastries", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName,
+            "Orders", x => x.GetXElement);
+		public void SaveShops() => SaveData(Shops, ShopFileName, 
+            "Shops", x => x.GetXElement);
+		private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", 
+                x => Component.Create(x)!)!;
+            Pastries = LoadData(PastryFileName, "Pastry",
+                x => Pastry.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order",
+                x => Order.Create(x)!)!;
+			Shops = LoadData(ShopFileName, "Shop", 
+                x => Shop.Create(x)!)!;
+		}
+		private static List<T>? LoadData<T>(string filename, 
+            string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return XDocument.Load(filename)?.Root?
+                    .Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, 
+            string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName, data
+                    .Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,83 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+namespace ConfectioneryFileImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComponentStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return source.Components
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel
+            model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return source.Components
+            .Where(x => x.ComponentName.Contains(model.ComponentName))
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) &&
+                !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Components
+            .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName)
+                && x.ComponentName == model.ComponentName) ||
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = source.Components.Count > 0 ?
+                source.Components.Max(x => x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Components.Add(newComponent);
+            source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = source.Components.FirstOrDefault(x => x.Id ==
+                model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = source.Components.FirstOrDefault(x => x.Id ==
+                model.Id);
+            if (element != null)
+            {
+                source.Components.Remove(element);
+                source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,92 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+namespace ConfectioneryFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders
+            .Select(x => AccessPastryStorage(x.GetViewModel))
+            .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders
+               .Where(x => x.Id == model.Id)
+               .Select(x => AccessPastryStorage(x.GetViewModel))
+               .ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return AccessPastryStorage(source.Orders.FirstOrDefault(
+                x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel);
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? 
+                source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+            return AccessPastryStorage(newOrder.GetViewModel);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return AccessPastryStorage(order.GetViewModel);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+                return AccessPastryStorage(element.GetViewModel);
+            }
+            return null;
+        }
+        public OrderViewModel AccessPastryStorage(OrderViewModel model)
+        {
+            if (model == null)
+                return null;
+            foreach (var Pastry in source.Pastries)
+            {
+                if (Pastry.Id == model.PastryId)
+                {
+                    model.PastryName = Pastry.PastryName;
+                    break;
+                }
+            }
+            return model;
+        }
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/PastryStorage.cs

@@ -0,0 +1,78 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+namespace ConfectioneryFileImplement.Implements
+{
+    public class PastryStorage : IPastryStorage
+    {
+        private readonly DataFileSingleton source;
+        public PastryStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<PastryViewModel> GetFullList()
+        {
+            return source.Pastries
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<PastryViewModel> GetFilteredList(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName))
+            {
+                return new();
+            }
+            return source.Pastries
+                .Where(x => x.PastryName.Contains(model.PastryName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public PastryViewModel? GetElement(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Pastries.FirstOrDefault(x => (!string.IsNullOrEmpty(
+                model.PastryName) && x.PastryName == model.PastryName) || 
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public PastryViewModel? Insert(PastryBindingModel model)
+        {
+            model.Id = source.Pastries.Count > 0 ? 
+                source.Pastries.Max(x => x.Id) + 1 : 1;
+            var newPastry = Pastry.Create(model);
+            if (newPastry == null)
+            {
+                return null;
+            }
+            source.Pastries.Add(newPastry);
+            source.SavePastries();
+            return newPastry.GetViewModel;
+        }
+        public PastryViewModel? Update(PastryBindingModel model)
+        {
+            var Pastry = source.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (Pastry == null)
+            {
+                return null;
+            }
+            Pastry.Update(model);
+            source.SavePastries();
+            return Pastry.GetViewModel;
+        }
+        public PastryViewModel? Delete(PastryBindingModel model)
+        {
+            var Pastry = source.Pastries.FirstOrDefault(x => x.Id == model.Id);
+            if (Pastry != null)
+            {
+                source.Pastries.Remove(Pastry);
+                source.SavePastries();
+                return Pastry.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

Confectionery/ConfectioneryFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,130 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryFileImplement.Models;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryFileImplement.Implements
+{
+	public class ShopStorage : IShopStorage
+	{
+		private readonly DataFileSingleton _source;
+		public ShopStorage()
+		{
+			_source = DataFileSingleton.GetInstance();
+		}
+		public List<ShopViewModel> GetFullList()
+		{
+			return _source.Shops.Select(x => x.GetViewModel).ToList();
+		}
+		public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.Name))
+			{
+				return new();
+			}
+			return _source.Shops.Where(
+				x => x.ShopName.Contains(model.Name))
+				.Select(x => x.GetViewModel).ToList();
+		}
+		public ShopViewModel? GetElement(ShopSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+			{
+				return null;
+			}
+			return _source.Shops.FirstOrDefault(
+				x => (!string.IsNullOrEmpty(model.Name) && 
+				x.ShopName == model.Name) || 
+				(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+		}
+		public ShopViewModel? Insert(ShopBindingModel model)
+		{
+			model.Id = _source.Shops.Count > 0 ? 
+				_source.Shops.Max(x => x.Id) + 1 : 1;
+			var newShop = Shop.Create(model);
+			if (newShop == null)
+			{
+				return null;
+			}
+			_source.Shops.Add(newShop);
+			_source.SaveShops();
+			return newShop.GetViewModel;
+		}
+		public ShopViewModel? Update(ShopBindingModel model)
+		{
+			var component = _source.Shops
+				.FirstOrDefault(x => x.Id == model.Id);
+			if (component == null)
+			{
+				return null;
+			}
+			component.Update(model);
+			_source.SaveShops();
+			return component.GetViewModel;
+		}
+		public ShopViewModel? Delete(ShopBindingModel model)
+		{
+			var element = _source.Shops
+				.FirstOrDefault(x => x.Id == model.Id);
+			if (element != null)
+			{
+				_source.Shops.Remove(element);
+				_source.SaveShops();
+				return element.GetViewModel;
+			}
+			return null;
+		}
+		private bool CheckAvailability(int PastryId, int count)
+		{
+			count -= _source.Shops
+				.SelectMany(x => x.ShopPastries)
+				.Where(y => y.Value.Item1.Id == PastryId)
+				.Sum(y => y.Value.Item2);
+			return count <= 0;
+		}
+		public bool SellPastries(IPastryModel model, int count)
+		{
+			var NeededPastry = _source.Pastries
+				.FirstOrDefault(x => x.Id == model.Id);
+
+			if (NeededPastry == null || 
+				!CheckAvailability(NeededPastry.Id, count))
+			{
+				return false;
+			}
+
+			for (int i = 0; i < _source.Shops.Count; i++)
+			{
+				var shop = _source.Shops[i];
+				var Pastries = shop.ShopPastries;
+
+				foreach (var pastry in Pastries
+					.Where(x => x.Value.Item1.Id == NeededPastry.Id))
+				{
+					var min = Math.Min(pastry.Value.Item2, count);
+					Pastries[pastry.Value.Item1.Id] = 
+						(pastry.Value.Item1, pastry.Value.Item2 - min);
+					count -= min;
+
+					if (count <= 0)
+					{
+						break;
+					}
+				}
+
+				shop.Update(new ShopBindingModel
+				{
+					Id = shop.Id,
+					ShopName = shop.ShopName,
+					Address = shop.Address,
+					DateOpen = shop.DateOpen,
+					MaxCapacity = shop.MaxCapacity,
+					ShopPastries = Pastries
+				});
+			}
+			_source.SaveShops();
+			return true;
+		}
+	}
+}

Confectionery/ConfectioneryFileImplement/Models/Component.cs

@@ -0,0 +1,58 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System.Xml.Linq;
+namespace ConfectioneryFileImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+        public XElement GetXElement => new("Component", 
+            new XAttribute("Id", Id),
+            new XElement("ComponentName", ComponentName),
+            new XElement("Cost", Cost.ToString()));
+    }
+}

Confectionery/ConfectioneryFileImplement/Models/Order.cs

@@ -0,0 +1,83 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+using System.Xml.Linq;
+namespace ConfectioneryFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int PastryId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; }
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                PastryId = model.PastryId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PastryId = Convert.ToInt32(element.Element("PastryId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), 
+                element.Element("Status")!.Value.ToString()),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!
+                .Value), DateImplement = string
+                .IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null
+                : Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryId = PastryId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order", 
+            new XAttribute("Id", Id),
+            new XElement("PastryId", PastryId),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Count", Count),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString())
+        );
+    }
+}

Confectionery/ConfectioneryFileImplement/Models/Pastry.cs

@@ -0,0 +1,90 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System.Xml.Linq;
+namespace ConfectioneryFileImplement.Models
+{
+    public class Pastry : IPastryModel
+    {
+        public int Id { get; private set; }
+        public string PastryName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, int> Components { get; private set; } = new();
+        private Dictionary<int, (IComponentModel, int)>?
+            _pastryComponents = null;
+        public Dictionary<int, (IComponentModel, int)> PastryComponents
+        {
+            get
+            {
+                if (_pastryComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _pastryComponents = Components
+                        .ToDictionary(x => x.Key, y => ((source.Components
+                        .FirstOrDefault(z => z.Id == y.Key) as 
+                        IComponentModel)!, y.Value));
+                }
+                return _pastryComponents;
+            }
+        }
+        public static Pastry? Create(PastryBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Pastry()
+            {
+                Id = model.Id,
+                PastryName = model.PastryName,
+                Price = model.Price,
+                Components = model.PastryComponents.ToDictionary(x => x.Key,
+                    x => x.Value.Item2)
+            };
+        }
+        public static Pastry? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Pastry()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PastryName = element.Element("PastryName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("PastryComponents")!
+                .Elements("PastryComponent").ToDictionary(x => 
+                Convert.ToInt32(x.Element("Key")?.Value), x =>
+                Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(PastryBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PastryName = model.PastryName;
+            Price = model.Price;
+            Components = model.PastryComponents.ToDictionary(x => x.Key,
+                x => x.Value.Item2);
+            _pastryComponents = null;
+        }
+        public PastryViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryName = PastryName,
+            Price = Price,
+            PastryComponents = PastryComponents
+        };
+        public XElement GetXElement => new("Pastry",
+            new XAttribute("Id", Id),
+            new XElement("PastryName", PastryName),
+            new XElement("Price", Price.ToString()),
+            new XElement("PastryComponents", Components.Select(x =>
+            new XElement("PastryComponent",
+            new XElement("Key", x.Key),
+            new XElement("Value", x.Value))).ToArray()));
+    }
+}

Confectionery/ConfectioneryFileImplement/Models/Shop.cs

@@ -0,0 +1,105 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System.Xml.Linq;
+namespace ConfectioneryFileImplement.Models
+{
+	public class Shop : IShopModel
+	{
+		public int Id { get; private set; }
+		public string ShopName { get; private set; } = string.Empty;
+		public string Address { get; private set; } = string.Empty;
+		public DateTime DateOpen { get; private set; }
+		public int MaxCapacity { get; private set; }
+		public Dictionary<int, int> Pastries { get; private set; } = new();
+		private Dictionary<int, (IPastryModel, int)>? _shopPastries = null;
+		public Dictionary<int, (IPastryModel, int)> ShopPastries
+		{
+			get
+			{
+				if (_shopPastries == null)
+				{
+					var source = DataFileSingleton.GetInstance();
+					_shopPastries = Pastries.ToDictionary(
+						x => x.Key, y => ((source.Pastries
+						.FirstOrDefault(z => z.Id == y.Key) as IPastryModel)!,
+					y.Value));
+				}
+				return _shopPastries;
+			}
+		}
+		public static Shop? Create(ShopBindingModel model)
+		{
+			if (model == null)
+				return null;
+			return new Shop()
+			{
+				Id = model.Id,
+				ShopName = model.ShopName,
+				Address = model.Address,
+				DateOpen = model.DateOpen,
+				MaxCapacity = model.MaxCapacity,
+				Pastries = model.ShopPastries.ToDictionary(
+					x => x.Key, x => x.Value.Item2)
+			};
+		}
+		public static Shop? Create(XElement element)
+		{
+			if (element == null)
+			{
+				return null;
+			}
+			return new Shop()
+			{
+				Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+				ShopName = element.Element("ShopName")!.Value,
+				Address = element.Element("Address")!.Value,
+				MaxCapacity = Convert.ToInt32(
+					element.Element("MaxCapacity")!.Value),
+				DateOpen = Convert.ToDateTime(
+					element.Element("DateOpen")!.Value),
+				Pastries = element
+					.Element("ShopPastries")!.Elements("ShopPastry")
+					.ToDictionary(x => 
+					Convert.ToInt32(x.Element("Key")?.Value), 
+					x => Convert.ToInt32(x.Element("Value")?.Value))
+			};
+		}
+		public void Update(ShopBindingModel model)
+		{
+			if (model == null)
+			{
+				return;
+			}
+			ShopName = model.ShopName;
+			Address = model.Address;
+			DateOpen = model.DateOpen;
+			MaxCapacity = model.MaxCapacity;
+			if (model.ShopPastries.Count > 0)
+			{
+				Pastries = model.ShopPastries
+					.ToDictionary(x => x.Key, x => x.Value.Item2);
+				_shopPastries = null;
+			}
+		}
+		public ShopViewModel GetViewModel => new()
+		{
+			Id = Id,
+			ShopName = ShopName,
+			Address = Address,
+			DateOpen = DateOpen,
+			MaxCapacity = MaxCapacity,
+			ShopPastries = ShopPastries
+		};
+		public XElement GetXElement => new("Shop",
+			new XAttribute("Id", Id),
+			new XElement("ShopName", ShopName),
+			new XElement("Address", Address),
+			new XElement("DateOpen", DateOpen),
+			new XElement("MaxCapacity", MaxCapacity),
+			new XElement("ShopPastries", Pastries
+				.Select(x => new XElement("ShopPastry", 
+					new XElement("Key", x.Key), 
+					new XElement("Value", x.Value))).ToArray()));
+	}
+}

Confectionery/ConfectioneryListImplement/ConfectioneryListImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConfectioneryContracts\ConfectioneryContracts.csproj" />
+    <ProjectReference Include="..\ConfectioneryDataModels\ConfectioneryDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Confectionery/ConfectioneryListImplement/DataListSingleton.cs

@@ -0,0 +1,27 @@
+using ConfectioneryListImplement.Models;
+namespace ConfectioneryListImplement
+{
+    public class DataListSingleton
+    {
+        private static DataListSingleton? _instance;
+        public List<Component> Components { get; set; }
+        public List<Order> Orders { get; set; }
+        public List<Pastry> Pastries { get; set; }
+		public List<Shop> Shops { get; set; }
+		private DataListSingleton()
+        {
+            Components = new List<Component>();
+            Orders = new List<Order>();
+            Pastries = new List<Pastry>();
+			Shops = new List<Shop>();
+		}
+		public static DataListSingleton GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+            return _instance;
+        }
+    }
+}

Confectionery/ConfectioneryListImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,103 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryListImplement.Models;
+namespace ConfectioneryListImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataListSingleton _source;
+        public ComponentStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            var result = new List<ComponentViewModel>();
+            foreach (var component in _source.Components)
+            {
+                result.Add(component.GetViewModel);
+            }
+            return result;
+        }
+        public List<ComponentViewModel> GetFilteredList(
+            ComponentSearchModel model)
+        {
+            var result = new List<ComponentViewModel>();
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return result;
+            }
+            foreach (var component in _source.Components)
+            {
+                if (component.ComponentName.Contains(model.ComponentName))
+                {
+                    result.Add(component.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && 
+                !model.Id.HasValue)
+            {
+                return null;
+            }
+        foreach (var component in _source.Components)
+            {
+                if ((!string.IsNullOrEmpty(model.ComponentName) && 
+                    component.ComponentName == model.ComponentName) || 
+                    (model.Id.HasValue && component.Id == model.Id))
+                {
+                    return component.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var component in _source.Components)
+            {
+                if (model.Id <= component.Id)
+                {
+                    model.Id = component.Id + 1;
+                }
+            }
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            _source.Components.Add(newComponent);
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            foreach (var component in _source.Components)
+            {
+                if (component.Id == model.Id)
+                {
+                    component.Update(model);
+                    return component.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            for (int i = 0; i < _source.Components.Count; ++i)
+            {
+                if (_source.Components[i].Id == model.Id)
+                {
+                    var element = _source.Components[i];
+                    _source.Components.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

Confectionery/ConfectioneryListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,111 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryListImplement.Models;
+namespace ConfectioneryListImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataListSingleton _source;
+        public OrderStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            var result = new List<OrderViewModel>();
+            foreach (var order in _source.Orders)
+            {
+                result.Add(AccessPastryStorage(order.GetViewModel));
+            }
+            return result;
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (!model.Id.HasValue)
+            {
+                return result;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    result.Add(AccessPastryStorage(order.GetViewModel));
+                }
+            }
+            return result;
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id.HasValue && order.Id == model.Id)
+                {
+                    return order.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id <= order.Id)
+                {
+                    model.Id = order.Id + 1;
+                }
+            }
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            _source.Orders.Add(newOrder);
+            return newOrder.GetViewModel;
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    order.Update(model);
+                    return order.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            for (int i = 0; i < _source.Orders.Count; ++i)
+            {
+                if (_source.Orders[i].Id == model.Id)
+                {
+                    var element = _source.Orders[i];
+                    _source.Orders.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public OrderViewModel AccessPastryStorage(OrderViewModel model)
+        {
+            foreach (var Pastry in _source.Pastries)
+            {
+                if (Pastry.Id == model.PastryId)
+                {
+                    model.PastryName = Pastry.PastryName;
+                    break;
+                }
+            }
+            return model;
+        }
+    }
+}

Confectionery/ConfectioneryListImplement/Implements/PastryStorage.cs

@@ -0,0 +1,101 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryListImplement.Models;
+namespace ConfectioneryListImplement.Implements
+{
+    public class PastryStorage : IPastryStorage
+    {
+        private readonly DataListSingleton _source;
+        public PastryStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<PastryViewModel> GetFullList()
+        {
+            var result = new List<PastryViewModel>();
+            foreach (var Pastry in _source.Pastries)
+            {
+                result.Add(Pastry.GetViewModel);
+            }
+            return result;
+        }
+        public List<PastryViewModel> GetFilteredList(PastrySearchModel model)
+        {
+            var result = new List<PastryViewModel>();
+            if (string.IsNullOrEmpty(model.PastryName))
+            {
+                return result;
+            }
+            foreach (var Pastry in _source.Pastries)
+            {
+                if (Pastry.PastryName.Contains(model.PastryName))
+                {
+                    result.Add(Pastry.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public PastryViewModel? GetElement(PastrySearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PastryName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var Pastry in _source.Pastries)
+            {
+                if ((!string.IsNullOrEmpty(model.PastryName) && 
+                    Pastry.PastryName == model.PastryName) || 
+                    (model.Id.HasValue && Pastry.Id == model.Id))
+                {
+                    return Pastry.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public PastryViewModel? Insert(PastryBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var Pastry in _source.Pastries)
+            {
+                if (model.Id <= Pastry.Id)
+                {
+                    model.Id = Pastry.Id + 1;
+                }
+            }
+            var newPastry = Pastry.Create(model);
+            if (newPastry == null)
+            {
+                return null;
+            }
+            _source.Pastries.Add(newPastry);
+            return newPastry.GetViewModel;
+        }
+        public PastryViewModel? Update(PastryBindingModel model)
+        {
+            foreach (var Pastry in _source.Pastries)
+            {
+                if (Pastry.Id == model.Id)
+                {
+                    Pastry.Update(model);
+                    return Pastry.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public PastryViewModel? Delete(PastryBindingModel model)
+        {
+            for (int i = 0; i < _source.Pastries.Count; ++i)
+            {
+                if (_source.Pastries[i].Id == model.Id)
+                {
+                    var element = _source.Pastries[i];
+                    _source.Pastries.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

Confectionery/ConfectioneryListImplement/Implements/ShopStorage.cs

@@ -0,0 +1,106 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContracts;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryListImplement.Models;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryListImplement.Implements
+{
+	public class ShopStorage : IShopStorage
+	{
+		private readonly DataListSingleton _source;
+		public ShopStorage()
+		{
+			_source = DataListSingleton.GetInstance();
+		}
+		public List<ShopViewModel> GetFullList()
+		{
+			var result = new List<ShopViewModel>();
+			foreach (var shop in _source.Shops)
+			{
+				result.Add(shop.GetViewModel);
+			}
+			return result;
+		}
+		public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+		{
+			var result = new List<ShopViewModel>();
+			if (string.IsNullOrEmpty(model.Name))
+			{
+				return result;
+			}
+			foreach (var shop in _source.Shops)
+			{
+				if (shop.ShopName.Contains(model.Name))
+				{
+					result.Add(shop.GetViewModel);
+				}
+			}
+			return result;
+		}
+		public ShopViewModel? GetElement(ShopSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+			{
+				return null;
+			}
+			foreach (var shop in _source.Shops)
+			{
+				if ((!string.IsNullOrEmpty(model.Name) &&
+			   shop.ShopName == model.Name) ||
+				(model.Id.HasValue && shop.Id == model.Id))
+				{
+					return shop.GetViewModel;
+				}
+			}
+			return null;
+		}
+		public ShopViewModel? Insert(ShopBindingModel model)
+		{
+			model.Id = 1;
+			foreach (var shop in _source.Shops)
+			{
+				if (model.Id <= shop.Id)
+				{
+					model.Id = shop.Id + 1;
+				}
+			}
+			var newShop = Shop.Create(model);
+			if (newShop == null)
+			{
+				return null;
+			}
+			_source.Shops.Add(newShop);
+			return newShop.GetViewModel;
+		}
+		public ShopViewModel? Update(ShopBindingModel model)
+		{
+			foreach (var shop in _source.Shops)
+			{
+				if (shop.Id == model.Id)
+				{
+					shop.Update(model);
+					return shop.GetViewModel;
+				}
+			}
+			return null;
+		}
+		public ShopViewModel? Delete(ShopBindingModel model)
+		{
+			for (int i = 0; i < _source.Shops.Count; ++i)
+			{
+				if (_source.Shops[i].Id == model.Id)
+				{
+					var element = _source.Shops[i];
+					_source.Shops.RemoveAt(i);
+					return element.GetViewModel;
+				}
+			}
+			return null;
+		}
+		public bool SellPastries(IPastryModel model, int count)
+		{
+			throw new NotImplementedException();
+		}
+	}
+}

Confectionery/ConfectioneryListImplement/Models/Component.cs

@@ -0,0 +1,40 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryListImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}

Confectionery/ConfectioneryListImplement/Models/Order.cs

@@ -0,0 +1,53 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryListImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int PastryId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; }
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                PastryId = model.PastryId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryId = PastryId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

Confectionery/ConfectioneryListImplement/Models/Pastry.cs

@@ -0,0 +1,48 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryListImplement.Models
+{
+    public class Pastry : IPastryModel
+    {
+        public int Id { get; private set; }
+        public string PastryName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, (IComponentModel, int)> PastryComponents
+        {
+            get;
+            private set;
+        } = new Dictionary<int, (IComponentModel, int)>();
+        public static Pastry? Create(PastryBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Pastry()
+            {
+                Id = model.Id,
+                PastryName = model.PastryName,
+                Price = model.Price,
+                PastryComponents = model.PastryComponents
+            };
+        }
+        public void Update(PastryBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PastryName = model.PastryName;
+            Price = model.Price;
+            PastryComponents = model.PastryComponents;
+        }
+        public PastryViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryName = PastryName,
+            Price = Price,
+            PastryComponents = PastryComponents
+        };
+    }
+}

Confectionery/ConfectioneryListImplement/Models/Shop.cs

@@ -0,0 +1,47 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+namespace ConfectioneryListImplement.Models
+{
+	public class Shop : IShopModel
+	{
+		public int Id { get; private set; }
+		public string ShopName { get; private set; } = string.Empty;
+		public string Address { get; private set; } = string.Empty; 
+		public DateTime DateOpen { get; private set; }
+		public Dictionary<int, (IPastryModel, int)> ShopPastries { get; private set; } = new();
+		public static Shop? Create(ShopBindingModel model)
+		{
+			if (model == null)
+				return null;
+			return new Shop()
+			{
+				Id = model.Id,
+				ShopName = model.ShopName,
+				Address = model.Address,
+				DateOpen = model.DateOpen,
+				ShopPastries = new()
+			};
+		}
+		public void Update(ShopBindingModel? model)
+		{
+			if (model == null)
+			{
+				return;
+			}
+			ShopName = model.ShopName;
+			Address = model.Address;
+			DateOpen = model.DateOpen;
+			ShopPastries = model.ShopPastries;
+		}
+		public ShopViewModel GetViewModel => new()
+		{
+			Id = Id,
+			ShopName = ShopName,
+			Address = Address,
+			DateOpen = DateOpen,
+			ShopPastries = ShopPastries
+		};
+		public int MaxCapacity => throw new NotImplementedException();
+	}
+}