исправление

PlumbingRepair/PlumbingRepair.sln

@@ -3,7 +3,19 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.6.33801.468
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PlumbingRepair", "PlumbingRepair\PlumbingRepair.csproj", "{16CDF38C-189C-4BED-AB66-DB3C212C4047}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairView", "PlumbingRepair\PlumbingRepairView.csproj", "{16CDF38C-189C-4BED-AB66-DB3C212C4047}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairDataModels", "PlumbingRepairDataModels\PlumbingRepairDataModels.csproj", "{F62B3ADF-0FE7-4066-BEF7-5DB0AE1A53A9}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairContracts", "PlumbingRepairContracts\PlumbingRepairContracts.csproj", "{FD429137-A114-4447-B51A-FCC11FEF7E2C}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairBusinessLogic", "PlumbingRepairBusinessLogic\PlumbingRepairBusinessLogic.csproj", "{B960E476-E516-4BAA-B5D7-55F29B376993}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairListImplement", "PlumbingRepairListImplement\PlumbingRepairListImplement.csproj", "{E89CA82F-2FEA-4235-93A2-E5A412D0116F}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairFileImplement", "PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj", "{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PlumbingRepairDataBaseImplement", "PlumbingRepairDataBaseImplement\PlumbingRepairDataBaseImplement.csproj", "{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +27,30 @@ Global
 		{16CDF38C-189C-4BED-AB66-DB3C212C4047}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{16CDF38C-189C-4BED-AB66-DB3C212C4047}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{16CDF38C-189C-4BED-AB66-DB3C212C4047}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F62B3ADF-0FE7-4066-BEF7-5DB0AE1A53A9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F62B3ADF-0FE7-4066-BEF7-5DB0AE1A53A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F62B3ADF-0FE7-4066-BEF7-5DB0AE1A53A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F62B3ADF-0FE7-4066-BEF7-5DB0AE1A53A9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FD429137-A114-4447-B51A-FCC11FEF7E2C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FD429137-A114-4447-B51A-FCC11FEF7E2C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FD429137-A114-4447-B51A-FCC11FEF7E2C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FD429137-A114-4447-B51A-FCC11FEF7E2C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B960E476-E516-4BAA-B5D7-55F29B376993}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B960E476-E516-4BAA-B5D7-55F29B376993}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B960E476-E516-4BAA-B5D7-55F29B376993}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B960E476-E516-4BAA-B5D7-55F29B376993}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E89CA82F-2FEA-4235-93A2-E5A412D0116F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E89CA82F-2FEA-4235-93A2-E5A412D0116F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E89CA82F-2FEA-4235-93A2-E5A412D0116F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E89CA82F-2FEA-4235-93A2-E5A412D0116F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CF58BB85-A6FB-4581-940D-BB7D1AB815CD}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C33166E1-3CA9-4CB8-AA74-1DFD66A1A91A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

PlumbingRepair/PlumbingRepair/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace PlumbingRepair
-{
-    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
-    }
-}

PlumbingRepair/PlumbingRepair/Form1.cs

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

PlumbingRepair/PlumbingRepair/FormComponent.Designer.cs

@@ -0,0 +1,117 @@
+namespace PlumbingRepairView
+{
+    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()
+        {
+            textBoxName = new TextBox();
+            textBoxCost = new TextBox();
+            labelName = new Label();
+            labelCost = new Label();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(140, 13);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(168, 31);
+            textBoxName.TabIndex = 0;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Location = new Point(140, 58);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.Size = new Size(168, 31);
+            textBoxCost.TabIndex = 1;
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(10, 19);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(94, 25);
+            labelName.TabIndex = 2;
+            labelName.Text = "Название:";
+            // 
+            // labelCost
+            // 
+            labelCost.AutoSize = true;
+            labelCost.Location = new Point(12, 64);
+            labelCost.Name = "labelCost";
+            labelCost.Size = new Size(57, 25);
+            labelCost.TabIndex = 3;
+            labelCost.Text = "Цена:";
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(163, 95);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(112, 34);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(281, 95);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(86, 34);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormComponent
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(374, 141);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(labelCost);
+            Controls.Add(labelName);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxName);
+            Name = "FormComponent";
+            Text = "Компонент";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+        private Label labelName;
+        private Label labelCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

PlumbingRepair/PlumbingRepair/FormComponent.cs

@@ -0,0 +1,87 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using System.Windows.Forms;
+
+namespace PlumbingRepairView
+{
+    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();
+        }
+    }
+}

PlumbingRepair/PlumbingRepair/FormComponent.resx

@@ -18,7 +18,7 @@
     <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="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>

PlumbingRepair/PlumbingRepair/FormComponents.Designer.cs

@@ -0,0 +1,120 @@
+namespace PlumbingRepairView
+{
+    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()
+        {
+            dataGridView = new DataGridView();
+            buttonAdd = new Button();
+            buttonDel = new Button();
+            buttonChange = new Button();
+            buttonRef = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(10, 8);
+            dataGridView.Margin = new Padding(2);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 62;
+            dataGridView.RowTemplate.Height = 33;
+            dataGridView.Size = new Size(512, 404);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(547, 33);
+            buttonAdd.Margin = new Padding(2);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(108, 27);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(547, 85);
+            buttonDel.Margin = new Padding(2);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(108, 27);
+            buttonDel.TabIndex = 2;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonChange
+            // 
+            buttonChange.Location = new Point(547, 147);
+            buttonChange.Margin = new Padding(2);
+            buttonChange.Name = "buttonChange";
+            buttonChange.Size = new Size(108, 27);
+            buttonChange.TabIndex = 3;
+            buttonChange.Text = "Изменить";
+            buttonChange.UseVisualStyleBackColor = true;
+            buttonChange.Click += ButtonUpd_Click;
+            // 
+            // buttonRef
+            // 
+            buttonRef.Location = new Point(547, 209);
+            buttonRef.Margin = new Padding(2);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(108, 27);
+            buttonRef.TabIndex = 4;
+            buttonRef.Text = "Обновить";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += ButtonRef_Click;
+            // 
+            // FormComponents
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(678, 422);
+            Controls.Add(buttonRef);
+            Controls.Add(buttonChange);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Margin = new Padding(2);
+            Name = "FormComponents";
+            Text = "Компоненты";
+            Load += FormComponents_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonDel;
+        private Button buttonChange;
+        private Button buttonRef;
+    }
+}

PlumbingRepair/PlumbingRepair/FormComponents.cs

@@ -0,0 +1,102 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+
+namespace PlumbingRepairView
+{
+    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();
+        }
+    }
+}

PlumbingRepair/PlumbingRepair/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>

PlumbingRepair/PlumbingRepair/FormCreateOrder.Designer.cs

@@ -0,0 +1,143 @@
+namespace PlumbingRepairView
+{
+    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()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            label3 = new Label();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            textBoxCount = new TextBox();
+            textBoxSum = new TextBox();
+            comboBoxWork = new ComboBox();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(23, 18);
+            label1.Name = "label1";
+            label1.Size = new Size(60, 20);
+            label1.TabIndex = 0;
+            label1.Text = "Работа:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(23, 55);
+            label2.Name = "label2";
+            label2.Size = new Size(93, 20);
+            label2.TabIndex = 1;
+            label2.Text = "Количество:";
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(23, 92);
+            label3.Name = "label3";
+            label3.Size = new Size(58, 20);
+            label3.TabIndex = 2;
+            label3.Text = "Сумма:";
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(389, 139);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 3;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(289, 139);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(94, 29);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(142, 55);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(341, 27);
+            textBoxCount.TabIndex = 5;
+            textBoxCount.TextChanged += textBoxCount_TextChanged;
+            // 
+            // textBoxSum
+            // 
+            textBoxSum.Location = new Point(142, 92);
+            textBoxSum.Name = "textBoxSum";
+            textBoxSum.Size = new Size(341, 27);
+            textBoxSum.TabIndex = 6;
+            // 
+            // comboBoxWork
+            // 
+            comboBoxWork.FormattingEnabled = true;
+            comboBoxWork.Location = new Point(142, 18);
+            comboBoxWork.Name = "comboBoxWork";
+            comboBoxWork.Size = new Size(341, 28);
+            comboBoxWork.TabIndex = 7;
+            comboBoxWork.SelectedIndexChanged += comboBoxWork_SelectedIndexChanged;
+            // 
+            // FormCreateOrder
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(495, 180);
+            Controls.Add(comboBoxWork);
+            Controls.Add(textBoxSum);
+            Controls.Add(textBoxCount);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(label3);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Name = "FormCreateOrder";
+            Text = "Заказ";
+            Load += FormCreateOrder_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private Label label3;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private TextBox textBoxCount;
+        private TextBox textBoxSum;
+        private ComboBox comboBoxWork;
+    }
+}

PlumbingRepair/PlumbingRepair/FormCreateOrder.cs

@@ -0,0 +1,141 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace PlumbingRepairView
+{
+    public partial class FormCreateOrder : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IWorkLogic _logicW;
+        private readonly IOrderLogic _logicO;
+
+        public FormCreateOrder(ILogger<FormCreateOrder> logger, IWorkLogic logicW, IOrderLogic logicO)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicW = logicW;
+            _logicO = logicO;
+            LoadData();
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка изделий для заказа");
+
+            try
+            {
+                var list = _logicW.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxWork.DisplayMember = "WorkName";
+                    comboBoxWork.ValueMember = "Id";
+                    comboBoxWork.DataSource = list;
+                    comboBoxWork.SelectedItem = null;
+                }
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки списка изделий");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void FormCreateOrder_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void CalcSum()
+        {
+            if (comboBoxWork.SelectedValue != null && !string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                try
+                {
+                    int id = Convert.ToInt32(comboBoxWork.SelectedValue);
+
+                    var product = _logicW.ReadElement(new WorkSearchModel
+                    {
+                        Id = id
+                    });
+
+                    int count = Convert.ToInt32(textBoxCount.Text);
+                    textBoxSum.Text = Math.Round(count * (product?.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 comboBoxWork_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 (comboBoxWork.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите изделие", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            _logger.LogInformation("Создание заказа");
+
+            try
+            {
+                var operationResult = _logicO.CreateOrder(new OrderBindingModel
+                {
+                    WorkId = Convert.ToInt32(comboBoxWork.SelectedValue),
+                    WorkName = comboBoxWork.Text,
+                    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();
+        }
+    }
+}

PlumbingRepair/PlumbingRepair/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>

PlumbingRepair/PlumbingRepair/FormMain.Designer.cs

@@ -0,0 +1,172 @@
+namespace PlumbingRepairView
+{
+    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()
+        {
+            menuStrip1 = new MenuStrip();
+            справочникиToolStripMenuItem = new ToolStripMenuItem();
+            компонентыToolStripMenuItem = new ToolStripMenuItem();
+            работыToolStripMenuItem = new ToolStripMenuItem();
+            dataGridView = new DataGridView();
+            buttonCreateOrder = new Button();
+            buttonTakeOrderInWork = new Button();
+            buttonOrderReady = new Button();
+            buttonIssuedOrder = new Button();
+            buttonUpdateList = new Button();
+            menuStrip1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // menuStrip1
+            // 
+            menuStrip1.ImageScalingSize = new Size(20, 20);
+            menuStrip1.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem });
+            menuStrip1.Location = new Point(0, 0);
+            menuStrip1.Name = "menuStrip1";
+            menuStrip1.Size = new Size(819, 28);
+            menuStrip1.TabIndex = 0;
+            menuStrip1.Text = "menuStrip1";
+            // 
+            // справочникиToolStripMenuItem
+            // 
+            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { компонентыToolStripMenuItem, работыToolStripMenuItem });
+            справочникиToolStripMenuItem.Name = "справочникиToolStripMenuItem";
+            справочникиToolStripMenuItem.Size = new Size(117, 24);
+            справочникиToolStripMenuItem.Text = "Справочники";
+            // 
+            // компонентыToolStripMenuItem
+            // 
+            компонентыToolStripMenuItem.Name = "компонентыToolStripMenuItem";
+            компонентыToolStripMenuItem.Size = new Size(182, 26);
+            компонентыToolStripMenuItem.Text = "Компоненты";
+            компонентыToolStripMenuItem.Click += компонентыToolStripMenuItem_Click;
+            // 
+            // работыToolStripMenuItem
+            // 
+            работыToolStripMenuItem.Name = "работыToolStripMenuItem";
+            работыToolStripMenuItem.Size = new Size(182, 26);
+            работыToolStripMenuItem.Text = "Работы";
+            работыToolStripMenuItem.Click += работыToolStripMenuItem_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 31);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(586, 420);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonCreateOrder
+            // 
+            buttonCreateOrder.Location = new Point(608, 44);
+            buttonCreateOrder.Name = "buttonCreateOrder";
+            buttonCreateOrder.Size = new Size(170, 29);
+            buttonCreateOrder.TabIndex = 2;
+            buttonCreateOrder.Text = "Создать заказ";
+            buttonCreateOrder.UseVisualStyleBackColor = true;
+            buttonCreateOrder.Click += buttonCreateOrder_Click;
+            // 
+            // buttonTakeOrderInWork
+            // 
+            buttonTakeOrderInWork.Location = new Point(608, 132);
+            buttonTakeOrderInWork.Name = "buttonTakeOrderInWork";
+            buttonTakeOrderInWork.Size = new Size(170, 50);
+            buttonTakeOrderInWork.TabIndex = 3;
+            buttonTakeOrderInWork.Text = "Отдать на выполнение";
+            buttonTakeOrderInWork.UseVisualStyleBackColor = true;
+            buttonTakeOrderInWork.Click += buttonTakeOrderInWork_Click;
+            // 
+            // buttonOrderReady
+            // 
+            buttonOrderReady.Location = new Point(608, 223);
+            buttonOrderReady.Name = "buttonOrderReady";
+            buttonOrderReady.Size = new Size(170, 29);
+            buttonOrderReady.TabIndex = 4;
+            buttonOrderReady.Text = "Заказ готов";
+            buttonOrderReady.UseVisualStyleBackColor = true;
+            buttonOrderReady.Click += buttonOrderReady_Click;
+            // 
+            // buttonIssuedOrder
+            // 
+            buttonIssuedOrder.Location = new Point(608, 313);
+            buttonIssuedOrder.Name = "buttonIssuedOrder";
+            buttonIssuedOrder.Size = new Size(170, 29);
+            buttonIssuedOrder.TabIndex = 5;
+            buttonIssuedOrder.Text = "Заказ выдан";
+            buttonIssuedOrder.UseVisualStyleBackColor = true;
+            buttonIssuedOrder.Click += buttonIssuedOrder_Click;
+            // 
+            // buttonUpdateList
+            // 
+            buttonUpdateList.Location = new Point(608, 384);
+            buttonUpdateList.Name = "buttonUpdateList";
+            buttonUpdateList.Size = new Size(170, 29);
+            buttonUpdateList.TabIndex = 6;
+            buttonUpdateList.Text = "Обновить список";
+            buttonUpdateList.UseVisualStyleBackColor = true;
+            buttonUpdateList.Click += buttonUpdateList_Click;
+            // 
+            // FormMain
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(819, 474);
+            Controls.Add(buttonUpdateList);
+            Controls.Add(buttonIssuedOrder);
+            Controls.Add(buttonOrderReady);
+            Controls.Add(buttonTakeOrderInWork);
+            Controls.Add(buttonCreateOrder);
+            Controls.Add(dataGridView);
+            Controls.Add(menuStrip1);
+            MainMenuStrip = menuStrip1;
+            Name = "FormMain";
+            Text = "Ремонт сантехники";
+            Load += FormMain_Load;
+            menuStrip1.ResumeLayout(false);
+            menuStrip1.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip1;
+        private ToolStripMenuItem справочникиToolStripMenuItem;
+        private DataGridView dataGridView;
+        private Button buttonCreateOrder;
+        private Button buttonTakeOrderInWork;
+        private Button buttonOrderReady;
+        private Button buttonIssuedOrder;
+        private Button buttonUpdateList;
+        private ToolStripMenuItem компонентыToolStripMenuItem;
+        private ToolStripMenuItem работыToolStripMenuItem;
+    }
+}

PlumbingRepair/PlumbingRepair/FormMain.cs

@@ -0,0 +1,199 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairDataModels.Enums;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace PlumbingRepairView
+{
+    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["WorkId"].Visible = false;
+                }
+
+                _logger.LogInformation("Загрузка заказов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки заказов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void компонентыToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComponents));
+
+            if (service is FormComponents form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void работыToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormWorks));
+
+            if (service is FormWorks 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(new OrderBindingModel
+                    {
+                        Id = id,
+                        WorkId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["WorkId"].Value),
+                        WorkName = dataGridView.SelectedRows[0].Cells["WorkName"].Value.ToString(),
+                        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()),
+                    });
+
+                    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.DeliveryOrder(new OrderBindingModel
+                    {
+                        Id = id,
+                        WorkId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["WorkId"].Value),
+                        WorkName = dataGridView.SelectedRows[0].Cells["WorkName"].Value.ToString(),
+                        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()),
+                    });
+
+                    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.FinishOrder(new OrderBindingModel
+                    {
+                        Id = id,
+                        WorkId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["WorkId"].Value),
+                        WorkName = dataGridView.SelectedRows[0].Cells["WorkName"].Value.ToString(),
+                        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()),
+                    });
+
+                    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 buttonUpdateList_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

PlumbingRepair/PlumbingRepair/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="menuStrip1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

PlumbingRepair/PlumbingRepair/FormWork.Designer.cs

@@ -0,0 +1,241 @@
+namespace PlumbingRepairView
+{
+    partial class FormWork
+    {
+        /// <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()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            groupBox1 = new GroupBox();
+            buttonRef = new Button();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            ComponentId = new DataGridViewTextBoxColumn();
+            ComponentName = new DataGridViewTextBoxColumn();
+            Count = new DataGridViewTextBoxColumn();
+            textBoxName = new TextBox();
+            textBoxCost = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            groupBox1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(40, 12);
+            label1.Margin = new Padding(4, 0, 4, 0);
+            label1.Name = "label1";
+            label1.Size = new Size(94, 25);
+            label1.TabIndex = 0;
+            label1.Text = "Название:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(40, 61);
+            label2.Margin = new Padding(4, 0, 4, 0);
+            label2.Name = "label2";
+            label2.Size = new Size(103, 25);
+            label2.TabIndex = 1;
+            label2.Text = "Стоимость:";
+            // 
+            // groupBox1
+            // 
+            groupBox1.Controls.Add(buttonRef);
+            groupBox1.Controls.Add(buttonDel);
+            groupBox1.Controls.Add(buttonUpd);
+            groupBox1.Controls.Add(buttonAdd);
+            groupBox1.Controls.Add(dataGridView);
+            groupBox1.Location = new Point(40, 108);
+            groupBox1.Margin = new Padding(4, 4, 4, 4);
+            groupBox1.Name = "groupBox1";
+            groupBox1.Padding = new Padding(4, 4, 4, 4);
+            groupBox1.Size = new Size(945, 384);
+            groupBox1.TabIndex = 2;
+            groupBox1.TabStop = false;
+            groupBox1.Text = "Компоненты";
+            // 
+            // buttonRef
+            // 
+            buttonRef.Location = new Point(752, 258);
+            buttonRef.Margin = new Padding(4, 4, 4, 4);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(118, 36);
+            buttonRef.TabIndex = 4;
+            buttonRef.Text = "Обновить";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += UpdateButton_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(752, 190);
+            buttonDel.Margin = new Padding(4, 4, 4, 4);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(118, 36);
+            buttonDel.TabIndex = 3;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += DeleteButton_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(752, 122);
+            buttonUpd.Margin = new Padding(4, 4, 4, 4);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(118, 36);
+            buttonUpd.TabIndex = 2;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ChangeButton_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(752, 55);
+            buttonAdd.Margin = new Padding(4, 4, 4, 4);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(118, 36);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += AddButton_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ComponentId, ComponentName, Count });
+            dataGridView.Location = new Point(0, 32);
+            dataGridView.Margin = new Padding(4, 4, 4, 4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(668, 344);
+            dataGridView.TabIndex = 0;
+            // 
+            // ComponentId
+            // 
+            ComponentId.HeaderText = "Id";
+            ComponentId.MinimumWidth = 6;
+            ComponentId.Name = "ComponentId";
+            ComponentId.Visible = false;
+            ComponentId.Width = 125;
+            // 
+            // ComponentName
+            // 
+            ComponentName.HeaderText = "Компонент";
+            ComponentName.MinimumWidth = 6;
+            ComponentName.Name = "ComponentName";
+            ComponentName.Width = 355;
+            // 
+            // Count
+            // 
+            Count.HeaderText = "Количество";
+            Count.MinimumWidth = 6;
+            Count.Name = "Count";
+            Count.Width = 125;
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(188, 12);
+            textBoxName.Margin = new Padding(4, 4, 4, 4);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(373, 31);
+            textBoxName.TabIndex = 3;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Location = new Point(188, 61);
+            textBoxCost.Margin = new Padding(4, 4, 4, 4);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.Size = new Size(256, 31);
+            textBoxCost.TabIndex = 4;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(857, 511);
+            buttonCancel.Margin = new Padding(4, 4, 4, 4);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(118, 36);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(731, 511);
+            buttonSave.Margin = new Padding(4, 4, 4, 4);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(118, 36);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += SaveButton_Click;
+            // 
+            // FormWork
+            // 
+            AutoScaleDimensions = new SizeF(10F, 25F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(1000, 562);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxName);
+            Controls.Add(groupBox1);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Margin = new Padding(4, 4, 4, 4);
+            Name = "FormWork";
+            Text = "Работа";
+            groupBox1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private GroupBox groupBox1;
+        private DataGridView dataGridView;
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+        private Button buttonRef;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private DataGridViewTextBoxColumn ComponentId;
+        private DataGridViewTextBoxColumn ComponentName;
+        private DataGridViewTextBoxColumn Count;
+    }
+}

PlumbingRepair/PlumbingRepair/FormWork.cs

@@ -0,0 +1,237 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace PlumbingRepairView
+{
+    public partial class FormWork : Form
+    {
+        private readonly ILogger _logger;
+
+        private readonly IWorkLogic _logic;
+
+        private int? _id;
+
+        private Dictionary<int, (IComponentModel, int)> _workComponents;
+
+        public int Id { set { _id = value; } }
+        public FormWork(ILogger<FormWork> logger, IWorkLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _workComponents = new Dictionary<int, (IComponentModel, int)>();
+        }
+        private void FormWork_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка изделия");
+
+                try
+                {
+                    var view = _logic.ReadElement(new WorkSearchModel
+                    {
+                        Id = _id.Value
+                    });
+
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.WorkName;
+                        textBoxCost.Text = view.Price.ToString();
+                        _workComponents = view.WorkComponents ?? new Dictionary<int, (IComponentModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка загрузки изделия");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка компонент изделия");
+
+            try
+            {
+                if (_workComponents != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var pc in _workComponents)
+                    {
+                        dataGridView.Rows.Add(new object[] { pc.Key, pc.Value.Item1.ComponentName, pc.Value.Item2 });
+                    }
+                    textBoxCost.Text = CalcPrice().ToString();
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки компонент изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void AddButton_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormWorkComponent));
+
+            if (service is FormWorkComponent form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    if (form.ComponentModel == null)
+                    {
+                        return;
+                    }
+
+                    _logger.LogInformation("Добавление нового компонента: { ComponentName} - { Count}", form.ComponentModel.ComponentName, form.Count);
+
+                    if (_workComponents.ContainsKey(form.Id))
+                    {
+                        _workComponents[form.Id] = (form.ComponentModel, form.Count);
+                    }
+
+                    else
+                    {
+                        _workComponents.Add(form.Id, (form.ComponentModel, form.Count));
+                    }
+
+                    LoadData();
+                }
+            }
+        }
+
+        private void ChangeButton_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormWorkComponent));
+
+                if (service is FormWorkComponent form)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value);
+                    form.Id = id;
+                    form.Count = _workComponents[id].Item2;
+
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        if (form.ComponentModel == null)
+                        {
+                            return;
+                        }
+
+                        _logger.LogInformation("Изменение компонента: { ComponentName} - { Count}", form.ComponentModel.ComponentName, form.Count);
+                        _workComponents[form.Id] = (form.ComponentModel, form.Count);
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void DeleteButton_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);
+                        _workComponents?.Remove(Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value));
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+
+                    LoadData();
+                }
+            }
+        }
+
+        private void UpdateButton_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void SaveButton_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            if (string.IsNullOrEmpty(textBoxCost.Text))
+            {
+                MessageBox.Show("Заполните цену", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            if (_workComponents == null || _workComponents.Count == 0)
+            {
+                MessageBox.Show("Заполните компоненты", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            _logger.LogInformation("Сохранение изделия");
+
+            try
+            {
+                var model = new WorkBindingModel
+                {
+                    Id = _id ?? 0,
+                    WorkName = textBoxName.Text,
+                    Price = Convert.ToDouble(textBoxCost.Text),
+                    WorkComponents = _workComponents
+                };
+
+                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 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 _workComponents)
+            {
+                price += ((elem.Value.Item1?.Cost ?? 0) * elem.Value.Item2);
+            }
+
+            return Math.Round(price * 1.1, 2);
+        }
+    }
+}

PlumbingRepair/PlumbingRepair/FormWork.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>

PlumbingRepair/PlumbingRepair/FormWorkComponent.Designer.cs

@@ -0,0 +1,125 @@
+namespace PlumbingRepairView
+{
+    partial class FormWorkComponent
+    {
+        /// <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()
+        {
+            comboBoxComponent = new ComboBox();
+            labelComponent = new Label();
+            labelCount = new Label();
+            textBoxCount = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // comboBoxComponent
+            // 
+            comboBoxComponent.FormattingEnabled = true;
+            comboBoxComponent.Location = new Point(110, 10);
+            comboBoxComponent.Margin = new Padding(2, 2, 2, 2);
+            comboBoxComponent.Name = "comboBoxComponent";
+            comboBoxComponent.Size = new Size(237, 28);
+            comboBoxComponent.TabIndex = 0;
+            // 
+            // labelComponent
+            // 
+            labelComponent.AutoSize = true;
+            labelComponent.Location = new Point(10, 12);
+            labelComponent.Margin = new Padding(2, 0, 2, 0);
+            labelComponent.Name = "labelComponent";
+            labelComponent.Size = new Size(91, 20);
+            labelComponent.TabIndex = 1;
+            labelComponent.Text = "Компонент:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(10, 55);
+            labelCount.Margin = new Padding(2, 0, 2, 0);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(93, 20);
+            labelCount.TabIndex = 2;
+            labelCount.Text = "Количество:";
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(112, 55);
+            textBoxCount.Margin = new Padding(2, 2, 2, 2);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(235, 27);
+            textBoxCount.TabIndex = 3;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(142, 85);
+            buttonSave.Margin = new Padding(2, 2, 2, 2);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(90, 27);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(236, 85);
+            buttonCancel.Margin = new Padding(2);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(66, 27);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormWorkComponent
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(356, 117);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCount);
+            Controls.Add(labelCount);
+            Controls.Add(labelComponent);
+            Controls.Add(comboBoxComponent);
+            Margin = new Padding(2, 2, 2, 2);
+            Name = "FormWorkComponent";
+            Text = "Компонент Изделия";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox comboBoxComponent;
+        private Label labelComponent;
+        private Label labelCount;
+        private TextBox textBoxCount;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

PlumbingRepair/PlumbingRepair/FormWorkComponent.cs

@@ -0,0 +1,89 @@
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace PlumbingRepairView
+{
+    public partial class FormWorkComponent : 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 FormWorkComponent(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();
+        }
+
+    }
+}

PlumbingRepair/PlumbingRepair/FormWorkComponent.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>

PlumbingRepair/PlumbingRepair/FormWorks.Designer.cs

@@ -0,0 +1,114 @@
+namespace PlumbingRepairView
+{
+    partial class FormWorks
+    {
+        /// <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();
+            buttonDel = new Button();
+            buttonRef = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(1, 0);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(611, 449);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(670, 23);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(94, 29);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += AddButton_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(670, 75);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(94, 29);
+            buttonUpd.TabIndex = 2;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ChangeButton_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(670, 132);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(94, 29);
+            buttonDel.TabIndex = 3;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += DeleteButton_Click;
+            // 
+            // buttonRef
+            // 
+            buttonRef.Location = new Point(670, 188);
+            buttonRef.Name = "buttonRef";
+            buttonRef.Size = new Size(94, 29);
+            buttonRef.TabIndex = 4;
+            buttonRef.Text = "Обновить";
+            buttonRef.UseVisualStyleBackColor = true;
+            buttonRef.Click += UpdateButton_Click;
+            // 
+            // FormWorks
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(buttonRef);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormWorks";
+            Text = "Работы";
+            Load += FormComponents_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonUpd;
+        private Button buttonDel;
+        private Button buttonRef;
+    }
+}

PlumbingRepair/PlumbingRepair/FormWorks.cs

@@ -0,0 +1,120 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace PlumbingRepairView
+{
+    public partial class FormWorks : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IWorkLogic _logic;
+
+        public FormWorks(ILogger<FormWorks> logger, IWorkLogic 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["WorkName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["WorkComponents"].Visible = false;
+                }
+
+                _logger.LogInformation("Загрузка изделий");
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки изделий");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void AddButton_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormWork));
+
+            if (service is FormWork form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+        private void ChangeButton_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormWork));
+
+                if (service is FormWork form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+        private void DeleteButton_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 изделия");
+
+                    try
+                    {
+                        if (!_logic.Delete(new WorkBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления изделия");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+        private void UpdateButton_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

PlumbingRepair/PlumbingRepair/FormWorks.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>

PlumbingRepair/PlumbingRepair/PlumbingRepair.csproj

@@ -1,11 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
-    <Nullable>enable</Nullable>
-    <UseWindowsForms>true</UseWindowsForms>
-    <ImplicitUsings>enable</ImplicitUsings>
-  </PropertyGroup>
-
-</Project>

PlumbingRepair/PlumbingRepair/PlumbingRepairView.csproj

@@ -0,0 +1,55 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairBusinessLogic\PlumbingRepairBusinessLogic.csproj" />
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataBaseImplement\PlumbingRepairDataBaseImplement.csproj" />
+    <ProjectReference Include="..\PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj" />
+    <ProjectReference Include="..\PlumbingRepairListImplement\PlumbingRepairListImplement.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="FormComponent.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="FormComponents.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="FormCreateOrder.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="FormMain.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="FormWork.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="FormWorkComponent.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="FormWorks.cs">
+      <SubType>Form</SubType>
+    </Compile>
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepair/Program.cs

@@ -1,7 +1,17 @@
-namespace PlumbingRepair
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairDataBaseImplement.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+using PlumbingRepairBusinessLogic.BusinessLogics;
+
+namespace PlumbingRepairView
 {
     internal static class Program
     {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
         ///  The main entry point for the application.
         /// </summary>
@@ -11,7 +21,33 @@ namespace PlumbingRepair
             // 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<IWorkStorage, WorkStorage>();
+
+            services.AddTransient<IComponentLogic, ComponentLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IWorkLogic, WorkLogic>();
+
+            services.AddTransient<FormMain>();
+            services.AddTransient<FormComponent>();
+            services.AddTransient<FormComponents>();
+            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormWork>();
+            services.AddTransient<FormWorkComponent>();
+            services.AddTransient<FormWorks>();
         }
     }
 }

PlumbingRepair/PlumbingRepairBusinessLogic/BusinessLogics/ComponentLogic.cs

@@ -0,0 +1,113 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace PlumbingRepairBusinessLogic.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");
+            }
+        }
+    }
+}

PlumbingRepair/PlumbingRepairBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -0,0 +1,140 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairBusinessLogic.BusinessLogics
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage
+       orderStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+        }
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList.OrderId:{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 OrderViewModel? ReadElement(OrderSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement.Id:{Id}", model.Id);
+            var element = _orderStorage.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 CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (model.Status != OrderStatus.Неизвестен)
+            {
+                _logger.LogWarning("Insert operation failed. Order Status incorrect.");
+                return false;
+            }
+
+            model.Status = OrderStatus.Принят;
+
+            if (_orderStorage.Insert(model) == null)
+            {
+                model.Status = OrderStatus.Неизвестен;
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+        public bool StatusUpdate(OrderBindingModel model, OrderStatus newStatus)
+        {
+            CheckModel(model);
+            if (model.Status + 1 != newStatus)
+            {
+                _logger.LogWarning("Status update to " + newStatus.ToString() + " operation failed. Order status incorrect.");
+                return false;
+            }
+
+            model.Status = newStatus;
+
+            if (model.Status == OrderStatus.Выдан)
+                model.DateImplement = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc); 
+
+            if (_orderStorage.Update(model) == null)
+            {
+                model.Status--;
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+
+            return true;
+        }
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выполняется);
+        }
+
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Готов);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выдан);
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.WorkId < 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор изделия", nameof(model.WorkId));
+            }
+
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException("Количество изделий в заказе должно быть больше 0", nameof(model.Count));
+            }
+
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Сумма заказа должна быть больше 0", nameof(model.Sum));
+            }
+            _logger.LogInformation("Order. OrderId:{Id}.Sum:{ Sum}. WorkId: { WorkId}", model.Id, model.Sum, model.WorkId);
+        }
+    }
+}

PlumbingRepair/PlumbingRepairBusinessLogic/BusinessLogics/WorkLogic.cs

@@ -0,0 +1,118 @@
+using Microsoft.Extensions.Logging;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairBusinessLogic.BusinessLogics
+{
+    public class WorkLogic : IWorkLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IWorkStorage _workStorage;
+        public WorkLogic(ILogger<WorkLogic> logger, IWorkStorage
+       workStorage)
+        {
+            _logger = logger;
+            _workStorage = workStorage;
+        }
+        public List<WorkViewModel>? ReadList(WorkSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. WorkName: {WorkName}.Id:{Id} ",
+                model?.WorkName, model?.Id);
+            var list = model == null ? _workStorage.GetFullList() :
+                    _workStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public WorkViewModel? ReadElement(WorkSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. WorkName:{WorkName}.Id:{Id}",
+                model.WorkName, model.Id);
+            var element = _workStorage.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(WorkBindingModel model)
+        {
+            CheckModel(model);
+            if (_workStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(WorkBindingModel model)
+        {
+            CheckModel(model);
+            if (_workStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(WorkBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_workStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(WorkBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.WorkName))
+            {
+                throw new ArgumentNullException("Нет названия работы",
+               nameof(model.WorkName));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена работы должна быть больше 0", nameof(model.Price));
+            }
+            _logger.LogInformation("Work. WorkName:{WorkName}.Price:{Price}. Id: {Id}",
+                model.WorkName, model.Price, model.Id);
+            var element = _workStorage.GetElement(new WorkSearchModel
+            {
+                WorkName = model.WorkName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Работа с таким названием уже есть");
+            }
+        }
+    }
+}

PlumbingRepair/PlumbingRepairBusinessLogic/PlumbingRepairBusinessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PlumbingRepairDataModels.Models;
+
+namespace PlumbingRepairContracts.BindingModels
+{
+    public class ComponentBindingModel : IComponentModel
+    {
+        public int Id { get; set; }
+        public string ComponentName { get; set; } = string.Empty;
+        public double Cost { get; set; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PlumbingRepairDataModels.Models;
+using PlumbingRepairDataModels.Enums;
+
+namespace PlumbingRepairContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { get; set; }
+        public int WorkId { get; set; }
+        public String WorkName { get; set; } = string.Empty;
+        public int Count { get; set; }
+        public double Sum { get; set; }
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; set; } = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
+        public DateTime? DateImplement { get; set; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/BindingModels/WorkBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PlumbingRepairDataModels.Models;
+
+namespace PlumbingRepairContracts.BindingModels
+{
+    public class WorkBindingModel : IWorkModel
+    {
+        public int Id { get; set; }
+        public string WorkName { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+            { get; set; } = new();
+    }
+}

PlumbingRepair/PlumbingRepairContracts/BusinessLogicsContracts/IComponentLogic.cs

@@ -0,0 +1,20 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.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);
+    }
+}

PlumbingRepair/PlumbingRepairContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,20 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.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);
+    }
+}

PlumbingRepair/PlumbingRepairContracts/BusinessLogicsContracts/IWorkLogic.cs

@@ -0,0 +1,20 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.BusinessLogicsContracts
+{
+    public interface IWorkLogic
+    {
+        List<WorkViewModel>? ReadList(WorkSearchModel? model);
+        WorkViewModel? ReadElement(WorkSearchModel model);
+        bool Create(WorkBindingModel model);
+        bool Update(WorkBindingModel model);
+        bool Delete(WorkBindingModel model);
+    }
+}

PlumbingRepair/PlumbingRepairContracts/PlumbingRepairContracts.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairContracts/SearchModels/ComponentSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.SearchModels
+{
+    public class ComponentSearchModel
+    {
+        public int? Id { get; set; }
+        public string? ComponentName { get; set; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/SearchModels/OrderSearchModel.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.SearchModels
+{
+    public class OrderSearchModel
+    {   
+        public int? Id { get; set; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/SearchModels/WorkSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.SearchModels
+{
+    public class WorkSearchModel
+    {
+        public int? Id { get; set; }
+        public string? WorkName { get; set; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/StoragesContracts/IComponentStorage.cs

@@ -0,0 +1,21 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.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);
+    }
+}

PlumbingRepair/PlumbingRepairContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,21 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.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);
+    }
+}

PlumbingRepair/PlumbingRepairContracts/StoragesContracts/IWorkStorage.cs

@@ -0,0 +1,21 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.StoragesContracts
+{
+    public interface IWorkStorage
+    {
+        List<WorkViewModel> GetFullList();
+        List<WorkViewModel> GetFilteredList(WorkSearchModel model);
+        WorkViewModel? GetElement(WorkSearchModel model);
+        WorkViewModel? Insert(WorkBindingModel model);
+        WorkViewModel? Update(WorkBindingModel model);
+        WorkViewModel? Delete(WorkBindingModel model);
+    }
+}

PlumbingRepair/PlumbingRepairContracts/ViewModels/ComponentViewModel.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PlumbingRepairDataModels.Models;
+
+namespace PlumbingRepairContracts.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; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,30 @@
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.ViewModels
+{
+    public class OrderViewModel : IOrderModel
+    {
+        [DisplayName("Номер")]
+        public int Id { get; set; }
+        public int WorkId { get; set; }
+        [DisplayName("Работа")]
+        public string WorkName { 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; }
+    }
+}

PlumbingRepair/PlumbingRepairContracts/ViewModels/WorkViewModel.cs

@@ -0,0 +1,21 @@
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairContracts.ViewModels
+{
+    public class WorkViewModel : IWorkModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название работы")]
+        public string WorkName { get; set; } = string.Empty;
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+            { get; set; } = new();
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,97 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Components.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.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;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Components.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            var newComponent = Component.Create(model);
+
+            if (newComponent == null)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+
+            return newComponent.GetViewModel;
+        }
+
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
+
+            if (component == null)
+            {
+                return null;
+            }
+
+            component.Update(model);
+            context.SaveChanges();
+
+            return component.GetViewModel;
+        }
+
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,97 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Orders.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Orders.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+
+            if (order == null)
+            {
+                return null;
+            }
+
+            order.Update(model);
+            context.SaveChanges();
+
+            return order.GetViewModel;
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Implements/WorkStorage.cs

@@ -0,0 +1,125 @@
+using Microsoft.EntityFrameworkCore;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Implements
+{
+    public class WorkStorage : IWorkStorage
+    {
+        public List<WorkViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Works
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<WorkViewModel> GetFilteredList(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName))
+            {
+                return new();
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Works
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .Where(x => x.WorkName.Contains(model.WorkName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public WorkViewModel? GetElement(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new PlumbingRepairDataBase();
+
+            return context.Works
+                .Include(x => x.Components)
+                .ThenInclude(x => x.Component)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkName) && x.WorkName == model.WorkName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public WorkViewModel? Insert(WorkBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var newWork = Work.Create(context, model);
+
+            if (newWork == null)
+            {
+                return null;
+            }
+
+            context.Works.Add(newWork);
+            context.SaveChanges();
+
+            return newWork.GetViewModel;
+        }
+
+        public WorkViewModel? Update(WorkBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            using var transaction = context.Database.BeginTransaction();
+
+            try
+            {
+                var package = context.Works.FirstOrDefault(rec => rec.Id == model.Id);
+
+                if (package == null)
+                {
+                    return null;
+                }
+
+                package.Update(model);
+                context.SaveChanges();
+                package.UpdateComponents(context, model);
+                transaction.Commit();
+
+                return package.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+
+                throw;
+            }
+        }
+
+        public WorkViewModel? Delete(WorkBindingModel model)
+        {
+            using var context = new PlumbingRepairDataBase();
+
+            var element = context.Works.Include(x => x.Components).FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Works.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Migrations/20240326163755_Migration1.Designer.cs

@@ -0,0 +1,175 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PlumbingRepairDataBaseImplement;
+
+#nullable disable
+
+namespace PlumbingRepairDataBaseImplement.Migrations
+{
+    [DbContext(typeof(PlumbingRepairDataBase))]
+    [Migration("20240326163755_Migration1")]
+    partial class Migration1
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Orders")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Component", "Component")
+                        .WithMany("WorkComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Components")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Migrations/20240326163755_Migration1.cs

@@ -0,0 +1,127 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace PlumbingRepairDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Migration1 : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ComponentName = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Works",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Works", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkId = table.Column<int>(type: "integer", nullable: false),
+                    WorkName = table.Column<string>(type: "text", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp with time zone", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "WorkComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_WorkComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_WorkComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_WorkComponents_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_WorkId",
+                table: "Orders",
+                column: "WorkId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkComponents_ComponentId",
+                table: "WorkComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkComponents_WorkId",
+                table: "WorkComponents",
+                column: "WorkId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "WorkComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Works");
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Migrations/PlumbingRepairDataBaseModelSnapshot.cs

@@ -0,0 +1,172 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PlumbingRepairDataBaseImplement;
+
+#nullable disable
+
+namespace PlumbingRepairDataBaseImplement.Migrations
+{
+    [DbContext(typeof(PlumbingRepairDataBase))]
+    partial class PlumbingRepairDataBaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Orders")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.WorkComponent", b =>
+                {
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Component", "Component")
+                        .WithMany("WorkComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDataBaseImplement.Models.Work", "Work")
+                        .WithMany("Components")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDataBaseImplement.Models.Work", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Component.cs

@@ -0,0 +1,56 @@
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using PlumbingRepairDataModels.Models;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairContracts.BindingModels;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<WorkComponent> WorkComponents { get; set; } = new();
+        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(ComponentViewModel model)
+        {
+            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
+        };
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Order.cs

@@ -0,0 +1,81 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int WorkId { get; private set; }
+
+        public string WorkName { get; private set; } = string.Empty;
+
+        [Required]
+        public int Count { get; private set; }
+
+        [Required]
+        public double Sum { get; private set; }
+
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public virtual Work Work { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = model.Id,
+                WorkId = model.WorkId,
+                WorkName = model.WorkName,
+                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,
+            WorkId = WorkId,
+            WorkName = WorkName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/Work.cs

@@ -0,0 +1,101 @@
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class Work : IWorkModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string WorkName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _workComponents =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+        {
+            get
+            {
+                if (_workComponents == null)
+                {
+                    _workComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _workComponents;
+            }
+        }
+        [ForeignKey("WorkId")]
+        public virtual List<WorkComponent> Components { get; set; } = new();
+        [ForeignKey("WorkId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Work Create(PlumbingRepairDataBase context,
+            WorkBindingModel model)
+        {
+            return new Work()
+            {
+                Id = model.Id,
+                WorkName = model.WorkName,
+                Price = model.Price,
+                Components = model.WorkComponents.Select(x => new
+               WorkComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(WorkBindingModel model)
+        {
+            WorkName = model.WorkName;
+            Price = model.Price;
+        }
+        public WorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkName = WorkName,
+            Price = Price,
+            WorkComponents = WorkComponents
+        };
+        public void UpdateComponents(PlumbingRepairDataBase context,
+            WorkBindingModel model)
+        {
+            var workComponents = context.WorkComponents.Where(rec =>
+           rec.WorkId == model.Id).ToList();
+            if (workComponents != null && workComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.WorkComponents.RemoveRange(workComponents.Where(rec
+               => !model.WorkComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in workComponents)
+                {
+                   updateComponent.Count = model.WorkComponents[updateComponent.ComponentId].Item2;
+                   model.WorkComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var work = context.Works.First(x => x.Id == Id);
+            foreach (var pc in model.WorkComponents)
+            {
+                context.WorkComponents.Add(new WorkComponent
+                {
+                    Work = work,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _workComponents = null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/Models/WorkComponent.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement.Models
+{
+    public class WorkComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int WorkId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Work Work { get; set; } = new();
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/PlumbingRepairDataBase.cs

@@ -0,0 +1,27 @@
+using Microsoft.EntityFrameworkCore;
+using PlumbingRepairDataBaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataBaseImplement
+{
+    public class PlumbingRepairDataBase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder
+            optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql(@"Host=localhost;Port=5432;Database=PlumbingRepairDatabaseFull;Username=postgres;Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Work> Works { set; get; }
+        public virtual DbSet<WorkComponent> WorkComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

PlumbingRepair/PlumbingRepairDataBaseImplement/PlumbingRepairDataBaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.11" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataModels.Enums
+{
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+
+        Принят = 0,
+
+        Выполняется = 1,
+
+        Готов = 2,
+
+        Выдан = 3
+    }
+}

PlumbingRepair/PlumbingRepairDataModels/IId.cs

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

PlumbingRepair/PlumbingRepairDataModels/Models/IComponentModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataModels.Models
+{
+    public interface IComponentModel : IId
+    {
+        string ComponentName { get; }
+        double Cost { get; }
+    }
+}

PlumbingRepair/PlumbingRepairDataModels/Models/IOrderModel.cs

@@ -0,0 +1,19 @@
+using PlumbingRepairDataModels.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataModels.Models
+{
+    public interface IOrderModel : IId
+    {
+        int WorkId { get; }
+        int Count { get; }
+        double Sum { get; }
+        OrderStatus Status { get; }
+        DateTime DateCreate { get; }
+        DateTime? DateImplement { get; }
+    }
+}

PlumbingRepair/PlumbingRepairDataModels/Models/IWorkModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairDataModels.Models
+{
+    public interface IWorkModel : IId
+    {
+        string WorkName { get; }
+        double Price { get; }
+        Dictionary<int, (IComponentModel, int)> WorkComponents { get; }
+    }
+}

PlumbingRepair/PlumbingRepairDataModels/PlumbingRepairDataModels.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairFileImplement/DataFileSingleton.cs

@@ -0,0 +1,62 @@
+using PlumbingRepairFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string WorkFileName = "Work.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Work> Works { 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 SaveWorks() => SaveData(Works, WorkFileName,
+       "Works", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, 
+        "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x =>
+            Component.Create(x)!)!;
+            Works = LoadData(WorkFileName, "Work", x =>
+            Work.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.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);
+            }
+        }
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,90 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairFileImplement.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;
+        }
+
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,93 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => 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 => x.GetViewModel).ToList();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return 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 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 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 element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/Implements/WorkStorage.cs

@@ -0,0 +1,94 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairFileImplement.Implements
+{
+    public class WorkStorage : IWorkStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public WorkStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public List<WorkViewModel> GetFullList()
+        {
+            return source.Works.Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<WorkViewModel> GetFilteredList(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName))
+            {
+                return new();
+            }
+
+            return source.Works.Where(x => x.WorkName.Contains(model.WorkName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public WorkViewModel? GetElement(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            return source.Works.FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkName) && x.WorkName == model.WorkName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public WorkViewModel? Insert(WorkBindingModel model)
+        {
+            model.Id = source.Works.Count > 0 ? source.Works.Max(x => x.Id) + 1 : 1;
+            var newWork = Work.Create(model);
+
+            if (newWork == null)
+            {
+                return null;
+            }
+
+            source.Works.Add(newWork);
+            source.SaveWorks();
+
+            return newWork.GetViewModel;
+        }
+
+        public WorkViewModel? Update(WorkBindingModel model)
+        {
+            var work = source.Works.FirstOrDefault(x => x.Id == model.Id);
+
+            if (work == null)
+            {
+                return null;
+            }
+
+            work.Update(model);
+            source.SaveWorks();
+
+            return work.GetViewModel;
+        }
+
+        public WorkViewModel? Delete(WorkBindingModel model)
+        {
+            var element = source.Works.FirstOrDefault(x => x.Id == model.Id);
+
+            if (element != null)
+            {
+                source.Works.Remove(element);
+                source.SaveWorks();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/Models/Component.cs

@@ -0,0 +1,59 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement.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()));
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/Models/Order.cs

@@ -0,0 +1,95 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int WorkId { get; private set; }
+        public String WorkName { get; private set; } = string.Empty;
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        public DateTime? DateImplement { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                WorkId = model.WorkId,
+                WorkName = model.WorkName,
+                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),
+                WorkId = Convert.ToInt32(element.Element("WorkId")!.Value),
+                WorkName = element.Element("WorkName")!.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),
+                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;
+            }
+            Count = model.Count;
+            Sum = model.Sum;
+            Status = model.Status;
+            DateCreate = model.DateCreate;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkId = WorkId,
+            WorkName = WorkName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("WorkName", WorkName),
+            new XElement("WorkId", WorkId.ToString()),
+            new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString()));
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/Models/Work.cs

@@ -0,0 +1,90 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace PlumbingRepairFileImplement.Models
+{
+    public class Work : IWorkModel
+    {
+        public int Id { get; private set; }
+        public string WorkName { 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)>? _workComponents = null;
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+        {
+            get
+            {
+                if(_workComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _workComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) 
+                    as IComponentModel)!, y.Value));
+                }
+                return _workComponents;
+            }
+        }
+        public static Work? Create(WorkBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Work()
+            {
+                Id = model.Id,
+                WorkName = model.WorkName,
+                Price = model.Price,
+                Components = model.WorkComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Work? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Work()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                WorkName = element.Element("WorkName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("WorkComponents")!.Elements("WorkComponent")
+                    .ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(WorkBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            WorkName = model.WorkName;
+            Price = model.Price;
+            Components = model.WorkComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _workComponents = null;
+        }
+        public WorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkName = WorkName,
+            Price = Price,
+            WorkComponents = WorkComponents
+        };
+        public XElement GetXElement => new("Work",
+             new XAttribute("Id", Id),
+             new XElement("WorkName", WorkName),
+             new XElement("Price", Price.ToString()),
+             new XElement("WorkComponents", Components.Select(x => 
+             new XElement("WorkComponent",
+             new XElement("Key", x.Key),
+             new XElement("Value", x.Value))).ToArray()));
+    }
+}

PlumbingRepair/PlumbingRepairFileImplement/PlumbingRepairFileImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairListImplement/DataListSingleton.cs

@@ -0,0 +1,31 @@
+using PlumbingRepairListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairListImplement
+{
+    public class DataListSingleton
+    {
+        private static DataListSingleton? _instance;
+        public List<Component> Components { get; set; }
+        public List<Order> Orders { get; set; }
+        public List<Work> Works { get; set; }
+        private DataListSingleton()
+        {
+            Components = new List<Component>();
+            Orders = new List<Order>();
+            Works = new List<Work>();
+        }
+        public static DataListSingleton GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+            return _instance;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,107 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairListImplement.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;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,105 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairListImplement.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(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 (model.Id.HasValue && order.Id == model.Id)
+                {
+                    result.Add(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;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/Implements/WorkStorage.cs

@@ -0,0 +1,126 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairListImplement.Implements
+{
+    public class WorkStorage : IWorkStorage
+    {
+        private readonly DataListSingleton _source;
+
+        public WorkStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+
+        public List<WorkViewModel> GetFullList()
+        {
+            var result = new List<WorkViewModel>();
+
+            foreach (var work in _source.Works)
+            {
+                result.Add(work.GetViewModel);
+            }
+
+            return result;
+        }
+
+        public List<WorkViewModel> GetFilteredList(WorkSearchModel model)
+        {
+            var result = new List<WorkViewModel>();
+
+            if (string.IsNullOrEmpty(model.WorkName))
+            {
+                return result;
+            }
+
+            foreach (var work in _source.Works)
+            {
+                if (work.WorkName.Contains(model.WorkName))
+                {
+                    result.Add(work.GetViewModel);
+                }
+            }
+
+            return result;
+        }
+
+        public WorkViewModel? GetElement(WorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.WorkName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            foreach (var work in _source.Works)
+            {
+                if ((!string.IsNullOrEmpty(model.WorkName) && work.WorkName == model.WorkName) || (model.Id.HasValue && work.Id == model.Id))
+                {
+                    return work.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        public WorkViewModel? Insert(WorkBindingModel model)
+        {
+            model.Id = 1;
+
+            foreach (var work in _source.Works)
+            {
+                if (model.Id <= work.Id)
+                {
+                    model.Id = work.Id + 1;
+                }
+            }
+
+            var newWork = Work.Create(model);
+
+            if (newWork == null)
+            {
+                return null;
+            }
+
+            _source.Works.Add(newWork);
+
+            return newWork.GetViewModel;
+        }
+
+        public WorkViewModel? Update(WorkBindingModel model)
+        {
+            foreach (var work in _source.Works)
+            {
+                if (work.Id == model.Id)
+                {
+                    work.Update(model);
+                    return work.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        public WorkViewModel? Delete(WorkBindingModel model)
+        {
+            for (int i = 0; i < _source.Works.Count; ++i)
+            {
+                if (_source.Works[i].Id == model.Id)
+                {
+                    var element = _source.Works[i];
+                    _source.Works.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/Models/Component.cs

@@ -0,0 +1,41 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+
+namespace PlumbingRepairListImplement.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
+        };
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/Models/Order.cs

@@ -0,0 +1,65 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairListImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int WorkId { get; private set; }
+        public String WorkName { get; private set; } = string.Empty;
+        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,
+                WorkId = model.WorkId,
+                WorkName = model.WorkName,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Count = model.Count;
+            Sum = model.Sum;
+            Status = model.Status;
+            DateCreate = model.DateCreate;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkId = WorkId,
+            WorkName = WorkName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/Models/Work.cs

@@ -0,0 +1,55 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PlumbingRepairListImplement.Models
+{
+    public class Work : IWorkModel
+    {
+        public int Id { get; private set; }
+        public string WorkName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+        {
+            get;
+            private set;
+        } = new Dictionary<int, (IComponentModel, int)>();
+        public static Work? Create(WorkBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Work()
+            {
+                Id = model.Id,
+                WorkName = model.WorkName,
+                Price = model.Price,
+                WorkComponents = model.WorkComponents
+            };
+        }
+        public void Update(WorkBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            WorkName = model.WorkName;
+            Price = model.Price;
+            WorkComponents = model.WorkComponents;
+        }
+        public WorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkName = WorkName,
+            Price = Price,
+            WorkComponents = WorkComponents
+        };
+    }
+}

PlumbingRepair/PlumbingRepairListImplement/PlumbingRepairListImplement.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairBusinessLogic\PlumbingRepairBusinessLogic.csproj" />
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairListImplement\PlumbingRepairListImplement.csproj" />
+  </ItemGroup>
+
+</Project>

PlumbingRepair/PlumbingRepairView/Program.cs

@@ -0,0 +1,53 @@
+using PlumbingRepairContracts.BusinessLogicsContracts;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairListImplement.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+using PlumbingRepairBusinessLogic.BusinessLogics;
+
+namespace PlumbingRepairView
+{
+    internal static class Program
+    {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
+        /// <summary>
+        /// 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.
+            ApplicationConfiguration.Initialize();
+            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<IWorkStorage, WorkStorage>();
+
+            services.AddTransient<IComponentLogic, ComponentLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IWorkLogic, WorkLogic>();
+
+            services.AddTransient<FormMain>();
+            services.AddTransient<FormComponent>();
+            services.AddTransient<FormComponents>();
+            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormWork>();
+            services.AddTransient<FormWorkComponent>();
+            services.AddTransient<FormWorks>();
+        }
+    }
+}