Correct4

CarRepairShop/CarRepairShop.sln

@@ -3,7 +3,19 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.7.34221.43
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarRepairShop", "CarRepairShop\CarRepairShop.csproj", "{5FEF443C-F2C8-4CD9-843D-0DFD94B66CD2}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarRepairShop", "CarRepairShop\CarRepairShop.csproj", "{5FEF443C-F2C8-4CD9-843D-0DFD94B66CD2}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarRepairShopDataModels", "CarRepairShopDataModels\CarRepairShopDataModels.csproj", "{A30B704D-BB52-4073-B3FB-A43B214FB730}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarRepairShopContracts", "CarRepairShopContracts\CarRepairShopContracts.csproj", "{FA47DABA-C657-4049-B02A-6AB850A6D29E}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarRepairShopBusinessLogic", "CarRepairShopBusinessLogic\CarRepairShopBusinessLogic.csproj", "{550ABD23-557C-41F3-97DF-DCA974DC2C91}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarRepairShopListImplement", "CarRepairShopListImplement\CarRepairShopListImplement.csproj", "{687C5C03-1B68-494D-8006-12862232D229}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarRepairShopFileImplement", "CarRepairShopFileImplement\CarRepairShopFileImplement.csproj", "{53D685FB-4609-4562-A930-49FAAB77BC9B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarRepairShopDatabaseImplement", "CarRepairShopDatabaseImplement\CarRepairShopDatabaseImplement.csproj", "{F1BAC88A-6D0D-4276-92C4-757F48D0D80F}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +27,30 @@ Global
 		{5FEF443C-F2C8-4CD9-843D-0DFD94B66CD2}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5FEF443C-F2C8-4CD9-843D-0DFD94B66CD2}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{5FEF443C-F2C8-4CD9-843D-0DFD94B66CD2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A30B704D-BB52-4073-B3FB-A43B214FB730}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A30B704D-BB52-4073-B3FB-A43B214FB730}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A30B704D-BB52-4073-B3FB-A43B214FB730}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A30B704D-BB52-4073-B3FB-A43B214FB730}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FA47DABA-C657-4049-B02A-6AB850A6D29E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FA47DABA-C657-4049-B02A-6AB850A6D29E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FA47DABA-C657-4049-B02A-6AB850A6D29E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FA47DABA-C657-4049-B02A-6AB850A6D29E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{550ABD23-557C-41F3-97DF-DCA974DC2C91}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{550ABD23-557C-41F3-97DF-DCA974DC2C91}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{550ABD23-557C-41F3-97DF-DCA974DC2C91}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{550ABD23-557C-41F3-97DF-DCA974DC2C91}.Release|Any CPU.Build.0 = Release|Any CPU
+		{687C5C03-1B68-494D-8006-12862232D229}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{687C5C03-1B68-494D-8006-12862232D229}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{687C5C03-1B68-494D-8006-12862232D229}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{687C5C03-1B68-494D-8006-12862232D229}.Release|Any CPU.Build.0 = Release|Any CPU
+		{53D685FB-4609-4562-A930-49FAAB77BC9B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{53D685FB-4609-4562-A930-49FAAB77BC9B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{53D685FB-4609-4562-A930-49FAAB77BC9B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{53D685FB-4609-4562-A930-49FAAB77BC9B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F1BAC88A-6D0D-4276-92C4-757F48D0D80F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F1BAC88A-6D0D-4276-92C4-757F48D0D80F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F1BAC88A-6D0D-4276-92C4-757F48D0D80F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F1BAC88A-6D0D-4276-92C4-757F48D0D80F}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

CarRepairShop/CarRepairShop/CarRepairShop.csproj

@@ -8,4 +8,25 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.16">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CarRepairShopBusinessLogic\CarRepairShopBusinessLogic.csproj" />
+    <ProjectReference Include="..\CarRepairShopDatabaseImplement\CarRepairShopDatabaseImplement.csproj" />
+    <ProjectReference Include="..\CarRepairShopFileImplement\CarRepairShopFileImplement.csproj" />
+    <ProjectReference Include="..\CarRepairShopListImplement\CarRepairShopListImplement.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog" Version="5.2.8" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+  </ItemGroup>
+
 </Project>

CarRepairShop/CarRepairShop/Form1.Designer.cs

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

CarRepairShop/CarRepairShop/Form1.cs

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

CarRepairShop/CarRepairShop/FormComponent.Designer.cs

@@ -0,0 +1,119 @@
+namespace CarRepairShop
+{
+    partial class FormComponent
+    {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelCost = new Label();
+            textBoxName = new TextBox();
+            textBoxCost = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(24, 19);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(80, 20);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название:";
+            // 
+            // labelCost
+            // 
+            labelCost.AutoSize = true;
+            labelCost.Location = new Point(24, 71);
+            labelCost.Name = "labelCost";
+            labelCost.Size = new Size(48, 20);
+            labelCost.TabIndex = 1;
+            labelCost.Text = "Цена:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(110, 19);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(366, 27);
+            textBoxName.TabIndex = 2;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Location = new Point(110, 71);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.Size = new Size(257, 27);
+            textBoxCost.TabIndex = 3;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(273, 119);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(94, 29);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(382, 119);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormComponent
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(490, 165);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxName);
+            Controls.Add(labelCost);
+            Controls.Add(labelName);
+            Name = "FormComponent";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Компонент";
+            Load += FormComponent_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelCost;
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

CarRepairShop/CarRepairShop/FormComponent.cs

@@ -0,0 +1,90 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+using System.Windows.Forms;
+
+namespace CarRepairShop
+{
+    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();
+        }
+
+    }
+}

CarRepairShop/CarRepairShop/FormComponents.Designer.cs

@@ -0,0 +1,116 @@
+namespace CarRepairShop
+{
+    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();
+            buttonUpdate = new Button();
+            buttonDelete = new Button();
+            buttonRefresh = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(593, 450);
+            dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(641, 27);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(120, 39);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(641, 87);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(120, 39);
+            buttonUpdate.TabIndex = 2;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(641, 150);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(120, 39);
+            buttonDelete.TabIndex = 3;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDel_Click;
+            // 
+            // buttonRefresh
+            // 
+            buttonRefresh.Location = new Point(641, 210);
+            buttonRefresh.Name = "buttonRefresh";
+            buttonRefresh.Size = new Size(120, 39);
+            buttonRefresh.TabIndex = 4;
+            buttonRefresh.Text = "Обновить";
+            buttonRefresh.UseVisualStyleBackColor = true;
+            buttonRefresh.Click += ButtonRef_Click;
+            // 
+            // FormComponents
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(buttonRefresh);
+            Controls.Add(buttonDelete);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormComponents";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Компоненты";
+            Load += FormComponents_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonUpdate;
+        private Button buttonDelete;
+        private Button buttonRefresh;
+    }
+}

CarRepairShop/CarRepairShop/FormComponents.cs

@@ -0,0 +1,115 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+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 CarRepairShop
+{
+    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();
+        }
+
+    }
+}

CarRepairShop/CarRepairShop/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>

CarRepairShop/CarRepairShop/FormCreateOrder.Designer.cs

@@ -0,0 +1,150 @@
+namespace CarRepairShop
+{
+    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()
+        {
+            comboBoxRepair = new ComboBox();
+            labelRepair = new Label();
+            labelCount = new Label();
+            labelSum = new Label();
+            textBoxCount = new TextBox();
+            textBoxSum = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // comboBoxRepair
+            // 
+            comboBoxRepair.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxRepair.FormattingEnabled = true;
+            comboBoxRepair.Location = new Point(131, 9);
+            comboBoxRepair.Name = "comboBoxRepair";
+            comboBoxRepair.Size = new Size(260, 28);
+            comboBoxRepair.TabIndex = 0;
+            comboBoxRepair.SelectedIndexChanged += ComboBoxRepair_SelectedIndexChanged;
+            comboBoxRepair.Click += ComboBoxRepair_SelectedIndexChanged;
+            // 
+            // labelRepair
+            // 
+            labelRepair.AutoSize = true;
+            labelRepair.Location = new Point(22, 9);
+            labelRepair.Name = "labelRepair";
+            labelRepair.Size = new Size(71, 20);
+            labelRepair.TabIndex = 1;
+            labelRepair.Text = "Изделие:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(26, 47);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(93, 20);
+            labelCount.TabIndex = 2;
+            labelCount.Text = "Количество:";
+            // 
+            // labelSum
+            // 
+            labelSum.AutoSize = true;
+            labelSum.Location = new Point(26, 89);
+            labelSum.Name = "labelSum";
+            labelSum.Size = new Size(58, 20);
+            labelSum.TabIndex = 3;
+            labelSum.Text = "Сумма:";
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(131, 47);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(260, 27);
+            textBoxCount.TabIndex = 4;
+            textBoxCount.Click += TextBoxCount_TextChanged;
+            textBoxCount.TextChanged += TextBoxCount_TextChanged;
+            // 
+            // textBoxSum
+            // 
+            textBoxSum.Location = new Point(131, 89);
+            textBoxSum.Name = "textBoxSum";
+            textBoxSum.ReadOnly = true;
+            textBoxSum.Size = new Size(260, 27);
+            textBoxSum.TabIndex = 5;
+            textBoxSum.TextChanged += TextBoxSum_TextChanged;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(177, 134);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(94, 29);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(277, 134);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormCreateOrder
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(406, 175);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxSum);
+            Controls.Add(textBoxCount);
+            Controls.Add(labelSum);
+            Controls.Add(labelCount);
+            Controls.Add(labelRepair);
+            Controls.Add(comboBoxRepair);
+            Name = "FormCreateOrder";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Заказ";
+            Load += FormCreateOrder_Load;
+            Click += FormCreateOrder_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox comboBoxRepair;
+        private Label labelRepair;
+        private Label labelCount;
+        private Label labelSum;
+        private TextBox textBoxCount;
+        private TextBox textBoxSum;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

CarRepairShop/CarRepairShop/FormCreateOrder.cs

@@ -0,0 +1,125 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShop
+{
+    public partial class FormCreateOrder : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IRepairLogic _logicR;
+        private readonly IOrderLogic _logicO;
+        public FormCreateOrder(ILogger<FormCreateOrder> logger, IRepairLogic logicR, IOrderLogic logicO)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logicR = logicR;
+            _logicO = logicO;
+        }
+        private void FormCreateOrder_Load(object sender, EventArgs e)
+        {
+            _logger.LogInformation("Загрузка ремонта для заказа");
+            try
+            {
+                var list = _logicR.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxRepair.DisplayMember = "RepairName";
+                    comboBoxRepair.ValueMember = "Id";
+                    comboBoxRepair.DataSource = list;
+                    comboBoxRepair.SelectedItem = null;
+                }
+                _logger.LogInformation("Ремонт загружено");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки ремонта");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+        private void CalcSum()
+        {
+            if (comboBoxRepair.SelectedValue != null &&
+           !string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                try
+                {
+                    int id = Convert.ToInt32(comboBoxRepair.SelectedValue);
+                    var repair = _logicR.ReadElement(new RepairSearchModel
+                    {
+                        Id
+                    = id
+                    });
+                    int count = Convert.ToInt32(textBoxCount.Text);
+                    textBoxSum.Text = Math.Round(count * (repair?.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 TextBoxSum_TextChanged(object sender, EventArgs e)
+        {
+            CalcSum();
+        }
+        private void ComboBoxRepair_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 (comboBoxRepair.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите ремонт", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Создание заказа");
+            try
+            {
+                var operationResult = _logicO.CreateOrder(new OrderBindingModel
+                {
+                    RepairId = Convert.ToInt32(comboBoxRepair.SelectedValue),
+                    Count = Convert.ToInt32(textBoxCount.Text),
+                    Sum = Convert.ToDouble(textBoxSum.Text)
+                });
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при создании заказа. Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение",
+               MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка создания заказа");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

CarRepairShop/CarRepairShop/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>

CarRepairShop/CarRepairShop/FormMain.Designer.cs

@@ -0,0 +1,175 @@
+namespace CarRepairShop
+{
+    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()
+        {
+            menuStrip = new MenuStrip();
+            справочникиToolStripMenuItem = new ToolStripMenuItem();
+            компонентыToolStripMenuItem = new ToolStripMenuItem();
+            ремонтToolStripMenuItem = new ToolStripMenuItem();
+            dataGridView = new DataGridView();
+            buttonCreateOrder = new Button();
+            buttonTakeOrderInWork = new Button();
+            buttonOrderReady = new Button();
+            buttonIssuedOrder = new Button();
+            buttonRefresh = new Button();
+            menuStrip.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // menuStrip
+            // 
+            menuStrip.ImageScalingSize = new Size(20, 20);
+            menuStrip.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(1082, 28);
+            menuStrip.TabIndex = 0;
+            menuStrip.Text = "Меню справочников";
+            // 
+            // справочникиToolStripMenuItem
+            // 
+            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { компонентыToolStripMenuItem, ремонтToolStripMenuItem });
+            справочникиToolStripMenuItem.Name = "справочникиToolStripMenuItem";
+            справочникиToolStripMenuItem.Size = new Size(117, 24);
+            справочникиToolStripMenuItem.Text = "Справочники";
+            // 
+            // компонентыToolStripMenuItem
+            // 
+            компонентыToolStripMenuItem.Name = "компонентыToolStripMenuItem";
+            компонентыToolStripMenuItem.Size = new Size(224, 26);
+            компонентыToolStripMenuItem.Text = "Компоненты";
+            компонентыToolStripMenuItem.Click += ComponentsToolStripMenuItem_Click;
+            // 
+            // ремонтToolStripMenuItem
+            // 
+            ремонтToolStripMenuItem.Name = "ремонтToolStripMenuItem";
+            ремонтToolStripMenuItem.Size = new Size(224, 26);
+            ремонтToolStripMenuItem.Text = "Ремонт";
+            ремонтToolStripMenuItem.Click += RepairToolStripMenuItem_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 31);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(839, 368);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonCreateOrder
+            // 
+            buttonCreateOrder.Location = new Point(858, 63);
+            buttonCreateOrder.Name = "buttonCreateOrder";
+            buttonCreateOrder.Size = new Size(212, 29);
+            buttonCreateOrder.TabIndex = 2;
+            buttonCreateOrder.Text = "Создать заказ";
+            buttonCreateOrder.UseVisualStyleBackColor = true;
+            buttonCreateOrder.Click += ButtonCreateOrder_Click;
+            // 
+            // buttonTakeOrderInWork
+            // 
+            buttonTakeOrderInWork.Location = new Point(858, 131);
+            buttonTakeOrderInWork.Name = "buttonTakeOrderInWork";
+            buttonTakeOrderInWork.Size = new Size(212, 29);
+            buttonTakeOrderInWork.TabIndex = 3;
+            buttonTakeOrderInWork.Text = "Отдать на выполнение";
+            buttonTakeOrderInWork.UseVisualStyleBackColor = true;
+            buttonTakeOrderInWork.Click += ButtonTakeOrderInWork_Click;
+            // 
+            // buttonOrderReady
+            // 
+            buttonOrderReady.Location = new Point(858, 197);
+            buttonOrderReady.Name = "buttonOrderReady";
+            buttonOrderReady.Size = new Size(212, 29);
+            buttonOrderReady.TabIndex = 4;
+            buttonOrderReady.Text = "Заказ готов";
+            buttonOrderReady.UseVisualStyleBackColor = true;
+            buttonOrderReady.Click += ButtonOrderReady_Click;
+            // 
+            // buttonIssuedOrder
+            // 
+            buttonIssuedOrder.Location = new Point(858, 263);
+            buttonIssuedOrder.Name = "buttonIssuedOrder";
+            buttonIssuedOrder.Size = new Size(212, 29);
+            buttonIssuedOrder.TabIndex = 5;
+            buttonIssuedOrder.Text = "Заказ выдан";
+            buttonIssuedOrder.UseVisualStyleBackColor = true;
+            buttonIssuedOrder.Click += ButtonIssuedOrder_Click;
+            // 
+            // buttonRefresh
+            // 
+            buttonRefresh.Location = new Point(858, 331);
+            buttonRefresh.Name = "buttonRefresh";
+            buttonRefresh.Size = new Size(212, 29);
+            buttonRefresh.TabIndex = 6;
+            buttonRefresh.Text = "Обновить список";
+            buttonRefresh.UseVisualStyleBackColor = true;
+            buttonRefresh.Click += ButtonRef_Click;
+            // 
+            // FormMain
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(1082, 403);
+            Controls.Add(buttonRefresh);
+            Controls.Add(buttonIssuedOrder);
+            Controls.Add(buttonOrderReady);
+            Controls.Add(buttonTakeOrderInWork);
+            Controls.Add(buttonCreateOrder);
+            Controls.Add(dataGridView);
+            Controls.Add(menuStrip);
+            MainMenuStrip = menuStrip;
+            Name = "FormMain";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Автомастерская";
+            Load += FormMain_Load;
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem справочникиToolStripMenuItem;
+        private ToolStripMenuItem компонентыToolStripMenuItem;
+        private ToolStripMenuItem ремонтToolStripMenuItem;
+        private DataGridView dataGridView;
+        private Button buttonCreateOrder;
+        private Button buttonTakeOrderInWork;
+        private Button buttonOrderReady;
+        private Button buttonIssuedOrder;
+        private Button buttonRefresh;
+    }
+}

CarRepairShop/CarRepairShop/FormMain.cs

@@ -0,0 +1,160 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopDataModels.Enums;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShop
+{
+    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["RepairId"].Visible = false;
+                    dataGridView.Columns["RepairName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка заказов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки заказов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void ComponentsToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service =
+           Program.ServiceProvider?.GetService(typeof(FormComponents));
+            if (service is FormComponents form)
+            {
+                form.ShowDialog();
+            }
+        }
+        private void RepairToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormRepairs));
+            if (service is FormRepairs 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 OrderBindingModel CreateBindingModel(int id, bool isDone = false)
+        {
+            return new OrderBindingModel
+            {
+                Id = id,
+                RepairId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["RepairId"].Value),
+                Status = Enum.Parse<OrderStatus>(dataGridView.SelectedRows[0].Cells["Status"].Value.ToString()),
+                Count = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Count"].Value),
+                Sum = double.Parse(dataGridView.SelectedRows[0].Cells["Sum"].Value.ToString()),
+                DateCreate = DateTime.Parse(dataGridView.SelectedRows[0].Cells["DateCreate"].Value.ToString()),
+            };
+        }
+        private void ButtonTakeOrderInWork_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id =
+               Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. Меняется статус на 'В работе'", id);
+                try
+                {
+                    var operationResult = _orderLogic.TakeOrderInWork(CreateBindingModel(id));
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка передачи заказа в работу");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonOrderReady_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id =
+               Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. Меняется статус на 'Готов'",
+               id);
+                try
+                {
+                    var operationResult = _orderLogic.FinishOrder(CreateBindingModel(id));
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о готовности заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonIssuedOrder_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id =
+               Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. Меняется статус на 'Выдан'",
+               id);
+                try
+                {
+                    var operationResult = _orderLogic.DeliveryOrder(CreateBindingModel(id));
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    _logger.LogInformation("Заказ №{id} выдан", id);
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о выдачи заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                   MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

CarRepairShop/CarRepairShop/FormMain.resx

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

CarRepairShop/CarRepairShop/FormRepair.Designer.cs

@@ -0,0 +1,231 @@
+namespace CarRepairShop
+{
+    partial class FormRepair
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelCost = new Label();
+            groupBoxComponents = new GroupBox();
+            buttonRefresh = new Button();
+            buttonDelete = new Button();
+            buttonUpdate = new Button();
+            buttonAdd = new Button();
+            dataGridViewComponents = new DataGridView();
+            textBoxName = new TextBox();
+            textBoxCost = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ColumnId = new DataGridViewTextBoxColumn();
+            ComponentNameColumn = new DataGridViewTextBoxColumn();
+            CountColumn = new DataGridViewTextBoxColumn();
+            groupBoxComponents.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewComponents).BeginInit();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Location = new Point(25, 18);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(80, 20);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название:";
+            // 
+            // labelCost
+            // 
+            labelCost.AutoSize = true;
+            labelCost.Location = new Point(25, 58);
+            labelCost.Name = "labelCost";
+            labelCost.Size = new Size(86, 20);
+            labelCost.TabIndex = 1;
+            labelCost.Text = "Стоимость:";
+            // 
+            // groupBoxComponents
+            // 
+            groupBoxComponents.Controls.Add(buttonRefresh);
+            groupBoxComponents.Controls.Add(buttonDelete);
+            groupBoxComponents.Controls.Add(buttonUpdate);
+            groupBoxComponents.Controls.Add(buttonAdd);
+            groupBoxComponents.Controls.Add(dataGridViewComponents);
+            groupBoxComponents.Location = new Point(12, 97);
+            groupBoxComponents.Name = "groupBoxComponents";
+            groupBoxComponents.Size = new Size(776, 303);
+            groupBoxComponents.TabIndex = 2;
+            groupBoxComponents.TabStop = false;
+            groupBoxComponents.Text = "Компоненты";
+            // 
+            // buttonRefresh
+            // 
+            buttonRefresh.Location = new Point(634, 191);
+            buttonRefresh.Name = "buttonRefresh";
+            buttonRefresh.Size = new Size(94, 29);
+            buttonRefresh.TabIndex = 7;
+            buttonRefresh.Text = "Обновить";
+            buttonRefresh.UseVisualStyleBackColor = true;
+            buttonRefresh.Click += ButtonRef_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(634, 142);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(94, 29);
+            buttonDelete.TabIndex = 6;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDel_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(634, 92);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(94, 29);
+            buttonUpdate.TabIndex = 5;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(634, 44);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(94, 29);
+            buttonAdd.TabIndex = 4;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewComponents
+            // 
+            dataGridViewComponents.BackgroundColor = Color.White;
+            dataGridViewComponents.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewComponents.Columns.AddRange(new DataGridViewColumn[] { ColumnId, ComponentNameColumn, CountColumn });
+            dataGridViewComponents.Location = new Point(13, 23);
+            dataGridViewComponents.Name = "dataGridViewComponents";
+            dataGridViewComponents.RowHeadersWidth = 51;
+            dataGridViewComponents.RowTemplate.Height = 29;
+            dataGridViewComponents.Size = new Size(573, 274);
+            dataGridViewComponents.TabIndex = 0;
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(117, 18);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(404, 27);
+            textBoxName.TabIndex = 1;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Location = new Point(117, 58);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.ReadOnly = true;
+            textBoxCost.Size = new Size(229, 27);
+            textBoxCost.TabIndex = 3;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(546, 406);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(94, 29);
+            buttonSave.TabIndex = 8;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(646, 406);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 9;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // ColumnId
+            // 
+            ColumnId.HeaderText = "Идентификатор";
+            ColumnId.MinimumWidth = 6;
+            ColumnId.Name = "ColumnId";
+            ColumnId.Visible = false;
+            ColumnId.Width = 125;
+            // 
+            // ComponentNameColumn
+            // 
+            ComponentNameColumn.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            ComponentNameColumn.HeaderText = "Компонент";
+            ComponentNameColumn.MinimumWidth = 320;
+            ComponentNameColumn.Name = "ComponentNameColumn";
+            // 
+            // CountColumn
+            // 
+            CountColumn.HeaderText = "Количество";
+            CountColumn.MinimumWidth = 6;
+            CountColumn.Name = "CountColumn";
+            CountColumn.Width = 200;
+            // 
+            // FormRepair
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxName);
+            Controls.Add(groupBoxComponents);
+            Controls.Add(labelCost);
+            Controls.Add(labelName);
+            Name = "FormRepair";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Ремонт";
+            Load += FormRepair_Load;
+            groupBoxComponents.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewComponents).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelCost;
+        private GroupBox groupBoxComponents;
+        private DataGridView dataGridViewComponents;
+        private Button buttonRefresh;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private Button buttonAdd;
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private DataGridViewTextBoxColumn ColumnId;
+        private DataGridViewTextBoxColumn ComponentNameColumn;
+        private DataGridViewTextBoxColumn CountColumn;
+    }
+}

CarRepairShop/CarRepairShop/FormRepair.cs

@@ -0,0 +1,214 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShop
+{
+    public partial class FormRepair : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IRepairLogic _logic;
+        private int? _id;
+        private Dictionary<int, (IComponentModel, int)> _repairComponents;
+        public int Id { set { _id = value; } }
+        public FormRepair(ILogger<FormRepair> logger, IRepairLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _repairComponents = new Dictionary<int, (IComponentModel, int)>();
+        }
+        private void FormRepair_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка ремонта");
+                try
+                {
+                    var view = _logic.ReadElement(new RepairSearchModel
+                    {
+                        Id = _id.Value
+                    });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.RepairName;
+                        textBoxCost.Text = view.Price.ToString();
+                        _repairComponents = view.RepairComponents ?? new Dictionary<int, (IComponentModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка загрузки ремонта");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка компонент ремонта");
+            try
+            {
+                if (_repairComponents != null)
+                {
+                    dataGridViewComponents.Rows.Clear();
+                    foreach (var pc in _repairComponents)
+                    {
+                        dataGridViewComponents.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 ремонта");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service =
+           Program.ServiceProvider?.GetService(typeof(FormRepairComponent));
+            if (service is FormRepairComponent form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    if (form.ComponentModel == null)
+                    {
+                        return;
+                    }
+                    _logger.LogInformation("Добавление нового компонента: { ComponentName} - { Count} ", form.ComponentModel.ComponentName, form.Count);
+                    if (_repairComponents.ContainsKey(form.Id))
+                    {
+                        _repairComponents[form.Id] = (form.ComponentModel,
+                       form.Count);
+                    }
+                    else
+                    {
+                        _repairComponents.Add(form.Id, (form.ComponentModel,
+                       form.Count));
+                    }
+                    LoadData();
+                }
+            }
+        }
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridViewComponents.SelectedRows.Count == 1)
+            {
+                var service =
+               Program.ServiceProvider?.GetService(typeof(FormRepairComponent));
+                if (service is FormRepairComponent form)
+                {
+                    int id =
+                   Convert.ToInt32(dataGridViewComponents.SelectedRows[0].Cells[0].Value);
+                    form.Id = id;
+                    form.Count = _repairComponents[id].Item2;
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        if (form.ComponentModel == null)
+                        {
+                            return;
+                        }
+                        _logger.LogInformation("Изменение компонента:{ ComponentName} - { Count} ", form.ComponentModel.ComponentName, form.Count);
+                        _repairComponents[form.Id] = (form.ComponentModel, form.Count);
+                        LoadData();
+                    }
+                }
+            }
+        }
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (dataGridViewComponents.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос",
+               MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    try
+                    {
+                        _logger.LogInformation("Удаление компонента: { ComponentName} - { Count}", dataGridViewComponents.SelectedRows[0].Cells[1].Value);
+
+                        _repairComponents?.Remove(Convert.ToInt32(dataGridViewComponents.SelectedRows[0].Cells[0].
+                        Value));
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка",
+                       MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                    LoadData();
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(textBoxCost.Text))
+            {
+                MessageBox.Show("Заполните цену", "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+                return;
+            }
+            if (_repairComponents == null || _repairComponents.Count == 0)
+            {
+                MessageBox.Show("Заполните компоненты", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение ремонта");
+            try
+            {
+                var model = new RepairBindingModel
+                {
+                    Id = _id ?? 0,
+                    RepairName = textBoxName.Text,
+                    Price = Convert.ToDouble(textBoxCost.Text),
+                    RepairComponents = _repairComponents
+                };
+                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 ремонта");
+                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 _repairComponents)
+            {
+                price += ((elem.Value.Item1?.Cost ?? 0) * elem.Value.Item2);
+            }
+            return Math.Round(price * 1.1, 2);
+        }
+    }
+}

CarRepairShop/CarRepairShop/FormRepair.resx

@@ -0,0 +1,129 @@
+<?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="ColumnId.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ComponentNameColumn.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="CountColumn.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

CarRepairShop/CarRepairShop/FormRepairComponent.Designer.cs

@@ -0,0 +1,120 @@
+namespace CarRepairShop
+{
+    partial class FormRepairComponent
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelComponent = new Label();
+            labelCount = new Label();
+            comboBoxComponent = new ComboBox();
+            textBoxCount = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // labelComponent
+            // 
+            labelComponent.AutoSize = true;
+            labelComponent.Location = new Point(20, 23);
+            labelComponent.Name = "labelComponent";
+            labelComponent.Size = new Size(91, 20);
+            labelComponent.TabIndex = 0;
+            labelComponent.Text = "Компонент:";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(20, 70);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(93, 20);
+            labelCount.TabIndex = 1;
+            labelCount.Text = "Количество:";
+            // 
+            // comboBoxComponent
+            // 
+            comboBoxComponent.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxComponent.FormattingEnabled = true;
+            comboBoxComponent.Location = new Point(124, 23);
+            comboBoxComponent.Name = "comboBoxComponent";
+            comboBoxComponent.Size = new Size(301, 28);
+            comboBoxComponent.TabIndex = 2;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(124, 70);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(301, 27);
+            textBoxCount.TabIndex = 3;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(231, 118);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(94, 29);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(331, 118);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormRepairComponent
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(439, 160);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCount);
+            Controls.Add(comboBoxComponent);
+            Controls.Add(labelCount);
+            Controls.Add(labelComponent);
+            Name = "FormRepairComponent";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Компонент ремонта";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelComponent;
+        private Label labelCount;
+        private ComboBox comboBoxComponent;
+        private TextBox textBoxCount;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

CarRepairShop/CarRepairShop/FormRepairComponent.cs

@@ -0,0 +1,74 @@
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+
+namespace CarRepairShop
+{
+    public partial class FormRepairComponent : 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 FormRepairComponent(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();
+        }
+    }
+}

CarRepairShop/CarRepairShop/FormRepairComponent.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>

CarRepairShop/CarRepairShop/FormRepairs.Designer.cs

@@ -0,0 +1,116 @@
+namespace CarRepairShop
+{
+    partial class FormRepairs
+    {
+        /// <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();
+            buttonUpdate = new Button();
+            buttonDelete = new Button();
+            buttonRefresh = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Location = new Point(0, 2);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(593, 450);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(638, 38);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(120, 39);
+            buttonAdd.TabIndex = 2;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.Location = new Point(638, 94);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(120, 39);
+            buttonUpdate.TabIndex = 3;
+            buttonUpdate.Text = "Изменить";
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpd_Click;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.Location = new Point(638, 151);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(120, 39);
+            buttonDelete.TabIndex = 4;
+            buttonDelete.Text = "Удалить";
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDel_Click;
+            // 
+            // buttonRefresh
+            // 
+            buttonRefresh.Location = new Point(638, 211);
+            buttonRefresh.Name = "buttonRefresh";
+            buttonRefresh.Size = new Size(120, 39);
+            buttonRefresh.TabIndex = 5;
+            buttonRefresh.Text = "Обновить";
+            buttonRefresh.UseVisualStyleBackColor = true;
+            buttonRefresh.Click += ButtonRef_Click;
+            // 
+            // FormRepairs
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(buttonRefresh);
+            Controls.Add(buttonDelete);
+            Controls.Add(buttonUpdate);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Name = "FormRepairs";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Ремонты";
+            Load += FormRepairs_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonAdd;
+        private Button buttonUpdate;
+        private Button buttonDelete;
+        private Button buttonRefresh;
+    }
+}

CarRepairShop/CarRepairShop/FormRepairs.cs

@@ -0,0 +1,106 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShop
+{
+    public partial class FormRepairs : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IRepairLogic _logic;
+        public FormRepairs(ILogger<FormRepairs> logger, IRepairLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormRepairs_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["RepairName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                    dataGridView.Columns["RepairComponents"].Visible = false;
+                }
+                _logger.LogInformation("Загрузка ремонтов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки ремонтов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormRepair));
+            if (service is FormRepair 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(FormRepair));
+                if (service is FormRepair form)
+                {
+                    var tmp = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    _logger.LogInformation("Удаление ремонта");
+                    try
+                    {
+                        if (!_logic.Delete(new RepairBindingModel
+                        {
+                            Id = id
+                        }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления ремонта");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

CarRepairShop/CarRepairShop/FormRepairs.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>

CarRepairShop/CarRepairShop/Program.cs

@@ -1,7 +1,17 @@
+using CarRepairShopBusinessLogic;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopDatabaseImplement.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+
 namespace CarRepairShop
 {
     internal static class Program
     {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
         /// The main entry point for the application.
         /// </summary>
@@ -11,7 +21,31 @@ namespace CarRepairShop
             // 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<IRepairStorage, RepairStorage>();
+            services.AddTransient<IComponentLogic, ComponentLogic>();
+            services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IRepairLogic, RepairLogic>();
+            services.AddTransient<FormMain>();
+            services.AddTransient<FormComponent>();
+            services.AddTransient<FormComponents>();
+            services.AddTransient<FormCreateOrder>();
+            services.AddTransient<FormRepair>();
+            services.AddTransient<FormRepairComponent>();
+            services.AddTransient<FormRepairs>();
         }
     }
 }

CarRepairShop/CarRepairShopBusinessLogic/CarRepairShopBusinessLogic.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.Abstractions" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CarRepairShopContracts\CarRepairShopContracts.csproj" />
+  </ItemGroup>
+
+</Project>

CarRepairShop/CarRepairShopBusinessLogic/ComponentLogic.cs

@@ -0,0 +1,109 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShopBusinessLogic
+{
+    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");
+            }
+        }
+    }
+}

CarRepairShop/CarRepairShopBusinessLogic/OrderLogic.cs

@@ -0,0 +1,105 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Enums;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShopBusinessLogic
+{
+    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. Id:{ Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() :
+           _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (model.Status != OrderStatus.Неизвестен) return false;
+            model.Status = OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool ChangeStatus(OrderBindingModel model, OrderStatus status)
+        {
+            CheckModel(model);
+            var element = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
+            if (element == null)
+            {
+                _logger.LogWarning("Read operation failed");
+                return false;
+            }
+            if (element.Status != status - 1)
+            {
+                _logger.LogWarning("Status change operation failed");
+                throw new InvalidOperationException("Текущий статус заказа не может быть переведен в выбранный");
+            }
+            model.Status = status;
+            if (model.Status == OrderStatus.Выдан) model.DateImplement = DateTime.Now;
+            _orderStorage.Update(model);
+            return true;
+        }
+
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выполняется);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Готов);
+        }
+
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выдан);
+        }
+
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Цена заказа должна быть больше 0", nameof(model.Sum));
+            }
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException("Количество элементов в заказе должно быть больше 0", nameof(model.Count));
+            }
+            _logger.LogInformation("Order. Sum:{ Cost}. Id: { Id}", model.Sum, model.Id);
+        }
+    }
+}

CarRepairShop/CarRepairShopBusinessLogic/RepairLogic.cs

@@ -0,0 +1,113 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.BusinessLogicsContracts;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace CarRepairShopBusinessLogic
+{
+    public class RepairLogic : IRepairLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IRepairStorage _repairStorage;
+        public RepairLogic(ILogger<RepairLogic> logger, IRepairStorage repairStorage)
+        {
+            _logger = logger;
+            _repairStorage = repairStorage;
+        }
+
+        public List<RepairViewModel>? ReadList(RepairSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. RepairName:{RepairName}. Id:{ Id}", model?.RepairName, model?.Id);
+            var list = model == null ? _repairStorage.GetFullList() :
+        _repairStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public RepairViewModel? ReadElement(RepairSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. RepairName:{RepairName}.Id:{ Id}", model.RepairName, model.Id);
+            var element = _repairStorage.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(RepairBindingModel model)
+        {
+            CheckModel(model);
+            if (_repairStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(RepairBindingModel model)
+        {
+            CheckModel(model);
+            if (_repairStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(RepairBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_repairStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(RepairBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.RepairName))
+            {
+                throw new ArgumentNullException("Нет названия ремонта",
+               nameof(model.RepairName));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена ремонта должна быть больше 0", nameof(model.Price));
+            }
+            _logger.LogInformation("Repair. Repair:{Repair}. Price:{ Price }. Id: { Id}", model.RepairName, model.Price, model.Id);
+            var element = _repairStorage.GetElement(new RepairSearchModel
+            {
+                RepairName = model.RepairName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Компонент с таким названием уже есть");
+            }
+        }
+    }
+}

CarRepairShop/CarRepairShopContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,11 @@
+using CarRepairShopDataModels.Models;
+
+namespace CarRepairShopContracts.BindingModels
+{
+    public class ComponentBindingModel : IComponentModel
+    {
+        public int Id { get; set; }
+        public string ComponentName { get; set; } = string.Empty;
+        public double Cost { get; set; }
+    }
+}

CarRepairShop/CarRepairShopContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,16 @@
+using CarRepairShopDataModels.Enums;
+using CarRepairShopDataModels;
+
+namespace CarRepairShopContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { get; set; }
+        public int RepairId { get; set; }
+        public int Count { get; set; }
+        public double Sum { get; set; }
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime? DateImplement { get; set; }
+    }
+}

CarRepairShop/CarRepairShopContracts/BindingModels/RepairBindingModel.cs

@@ -0,0 +1,12 @@
+using CarRepairShopDataModels.Models;
+
+namespace CarRepairShopContracts.BindingModels
+{
+    public class RepairBindingModel : IRepairModel
+    {
+        public int Id { get; set; }
+        public string RepairName { get; set; } = string.Empty;
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> RepairComponents { get; set; } = new();
+    }
+}

CarRepairShop/CarRepairShopContracts/BusinessLogicsContracts/IComponentLogic.cs

@@ -0,0 +1,15 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.ViewModels;
+
+namespace CarRepairShopContracts.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);
+    }
+}

CarRepairShop/CarRepairShopContracts/BusinessLogicsContracts/IOrderLogic.cs

@@ -0,0 +1,16 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.ViewModels;
+
+namespace CarRepairShopContracts.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);
+
+    }
+}

CarRepairShop/CarRepairShopContracts/BusinessLogicsContracts/IRepairLogic.cs

@@ -0,0 +1,15 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.ViewModels;
+
+namespace CarRepairShopContracts.BusinessLogicsContracts
+{
+    public interface IRepairLogic
+    {
+        List<RepairViewModel>? ReadList(RepairSearchModel? model);
+        RepairViewModel? ReadElement(RepairSearchModel model);
+        bool Create(RepairBindingModel model);
+        bool Update(RepairBindingModel model);
+        bool Delete(RepairBindingModel model);
+    }
+}

CarRepairShop/CarRepairShopContracts/CarRepairShopContracts.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="..\CarRepairShopDataModels\CarRepairShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

CarRepairShop/CarRepairShopContracts/SearchModels/ComponentSearchModel.cs

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

CarRepairShop/CarRepairShopContracts/SearchModels/OrderSearchModel.cs

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

CarRepairShop/CarRepairShopContracts/SearchModels/RepairSearchModel.cs

@@ -0,0 +1,8 @@
+namespace CarRepairShopContracts.SearchModels
+{
+    public class RepairSearchModel
+    {
+        public int? Id { get; set; }
+        public string? RepairName { get; set; }
+    }
+}

CarRepairShop/CarRepairShopContracts/StoragesContracts/IComponentStorage.cs

@@ -0,0 +1,17 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.ViewModels;
+
+namespace CarRepairShopContracts.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);
+
+    }
+}

CarRepairShop/CarRepairShopContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,17 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.ViewModels;
+
+namespace CarRepairShopContracts.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);
+
+    }
+}

CarRepairShop/CarRepairShopContracts/StoragesContracts/IRepairStorage.cs

@@ -0,0 +1,17 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.ViewModels;
+
+namespace CarRepairShopContracts.StoragesContracts
+{
+    public interface IRepairStorage
+    {
+        List<RepairViewModel> GetFullList();
+        List<RepairViewModel> GetFilteredList(RepairSearchModel model);
+        RepairViewModel? GetElement(RepairSearchModel model);
+        RepairViewModel? Insert(RepairBindingModel model);
+        RepairViewModel? Update(RepairBindingModel model);
+        RepairViewModel? Delete(RepairBindingModel model);
+
+    }
+}

CarRepairShop/CarRepairShopContracts/ViewModels/ComponentViewModel.cs

@@ -0,0 +1,14 @@
+using CarRepairShopDataModels.Models;
+using System.ComponentModel;
+
+namespace CarRepairShopContracts.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; }
+    }
+}

CarRepairShop/CarRepairShopContracts/ViewModels/OrderViewModel.cs

@@ -0,0 +1,26 @@
+using CarRepairShopDataModels;
+using CarRepairShopDataModels.Enums;
+using CarRepairShopDataModels.Models;
+using System.ComponentModel;
+
+namespace CarRepairShopContracts.ViewModels
+{
+    public class OrderViewModel : IOrderModel
+    {
+        [DisplayName("Номер")]
+        public int Id { get; set; }
+        public int RepairId { get; set; }
+        [DisplayName("Ремонт")]
+        public string RepairName { 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; }
+    }
+}

CarRepairShop/CarRepairShopContracts/ViewModels/RepairViewModel.cs

@@ -0,0 +1,15 @@
+using CarRepairShopDataModels.Models;
+using System.ComponentModel;
+
+namespace CarRepairShopContracts.ViewModels
+{
+    public class RepairViewModel : IRepairModel
+    {
+        public int Id { get; set; }
+        [DisplayName("Название ремонта")]
+        public string RepairName { get; set; } = string.Empty;
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+        public Dictionary<int, (IComponentModel, int)> RepairComponents { get; set; } = new();
+    }
+}

CarRepairShop/CarRepairShopDataModels/CarRepairShopDataModels.csproj

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

CarRepairShop/CarRepairShopDataModels/IComponentModel.cs

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

CarRepairShop/CarRepairShopDataModels/IId.cs

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

CarRepairShop/CarRepairShopDataModels/IOrderModel.cs

@@ -0,0 +1,15 @@
+using CarRepairShopDataModels.Enums;
+
+namespace CarRepairShopDataModels
+{
+    public interface IOrderModel
+    {
+        int RepairId { get; }
+        int Count { get; }
+        double Sum { get; }
+        OrderStatus Status { get; }
+        DateTime DateCreate { get; }
+        DateTime? DateImplement { get; }
+
+    }
+}

CarRepairShop/CarRepairShopDataModels/IRepairModel.cs

@@ -0,0 +1,10 @@
+namespace CarRepairShopDataModels.Models
+{
+    public interface IRepairModel : IId
+    {
+        string RepairName { get; }
+        double Price { get; }
+        Dictionary<int, (IComponentModel, int)> RepairComponents { get; }
+
+    }
+}

CarRepairShop/CarRepairShopDataModels/OrderStatus.cs

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

CarRepairShop/CarRepairShopDatabaseImplement/CarRepairShopDatabaseImplement.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.16" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.16" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.16">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CarRepairShopContracts\CarRepairShopContracts.csproj" />
+    <ProjectReference Include="..\CarRepairShopDataModels\CarRepairShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

CarRepairShop/CarRepairShopDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,84 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDatabaseImplement.Models;
+
+namespace CarRepairShopDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new RepairsShopDatabase();
+            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 RepairsShopDatabase();
+            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 RepairsShopDatabase();
+            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 RepairsShopDatabase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new RepairsShopDatabase();
+            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 RepairsShopDatabase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,79 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarRepairShopDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new RepairsShopDatabase();
+            return context.Orders.Include(x => x.Repair)
+            .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new RepairsShopDatabase();
+            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 RepairsShopDatabase();
+            return  context.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new RepairsShopDatabase();
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel;
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new RepairsShopDatabase();
+            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 RepairsShopDatabase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Implements/RepairStorage.cs

@@ -0,0 +1,105 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarRepairShopDatabaseImplement.Implements
+{
+    public class RepairStorage : IRepairStorage
+    {
+        public List<RepairViewModel> GetFullList()
+        {
+            using var context = new RepairsShopDatabase();
+            return context.Repairs
+             .Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<RepairViewModel> GetFilteredList(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName))
+            {
+                return new();
+            }
+            using var context = new RepairsShopDatabase();
+            return context.Repairs
+             .Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .Where(x => x.RepairName.Contains(model.RepairName))
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public RepairViewModel? GetElement(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName) &&
+            !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new RepairsShopDatabase();
+            return context.Repairs
+             .Include(x => x.Components)
+             .ThenInclude(x => x.Component)
+             .FirstOrDefault(x => (!string.IsNullOrEmpty(model.RepairName) &&
+            x.RepairName == model.RepairName) ||
+            (model.Id.HasValue && x.Id ==
+            model.Id))
+            ?.GetViewModel;
+        }
+        public RepairViewModel? Insert(RepairBindingModel model)
+        {
+            using var context = new RepairsShopDatabase();
+            var newRepair = Repair.Create(context, model);
+            if (newRepair == null)
+            {
+                return null;
+            }
+            context.Repairs.Add(newRepair);
+            context.SaveChanges();
+            return newRepair.GetViewModel;
+        }
+        public RepairViewModel? Update(RepairBindingModel model)
+        {
+            using var context = new RepairsShopDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var Repair = context.Repairs.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (Repair == null)
+                {
+                    return null;
+                }
+                Repair.Update(model);
+                context.SaveChanges();
+                Repair.UpdateComponents(context, model);
+                transaction.Commit();
+                return Repair.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public RepairViewModel? Delete(RepairBindingModel model)
+        {
+            using var context = new RepairsShopDatabase();
+            var element = context.Repairs
+            .Include(x => x.Components)
+            .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Repairs.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Migrations/20240325173603_InitialCreate.Designer.cs

@@ -0,0 +1,171 @@
+// <auto-generated />
+using System;
+using CarRepairShopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace CarRepairShopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(RepairsShopDatabase))]
+    [Migration("20240325173603_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("CarRepairShopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("CarRepairShopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("CarRepairShopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Migrations/20240325173603_InitialCreate.cs

@@ -0,0 +1,125 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace CarRepairShopDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComponentName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Repairs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    RepairName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Repairs", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    RepairId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "RepairComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    RepairId = table.Column<int>(type: "int", nullable: false),
+                    ComponentId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_RepairComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_RepairComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_RepairComponents_Repairs_RepairId",
+                        column: x => x.RepairId,
+                        principalTable: "Repairs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_RepairId",
+                table: "Orders",
+                column: "RepairId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_RepairComponents_ComponentId",
+                table: "RepairComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_RepairComponents_RepairId",
+                table: "RepairComponents",
+                column: "RepairId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "RepairComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Repairs");
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Migrations/RepairsShopDatabaseModelSnapshot.cs

@@ -0,0 +1,168 @@
+// <auto-generated />
+using System;
+using CarRepairShopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace CarRepairShopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(RepairsShopDatabase))]
+    partial class RepairsShopDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("RepairName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Repairs");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("RepairId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("RepairId");
+
+                    b.ToTable("RepairComponents");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("CarRepairShopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Orders")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.RepairComponent", b =>
+                {
+                    b.HasOne("CarRepairShopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("RepairComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("CarRepairShopDatabaseImplement.Models.Repair", "Repair")
+                        .WithMany("Components")
+                        .HasForeignKey("RepairId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Repair");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("RepairComponents");
+                });
+
+            modelBuilder.Entity("CarRepairShopDatabaseImplement.Models.Repair", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Models/Component.cs

@@ -0,0 +1,56 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+
+namespace CarRepairShopDatabaseImplement.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<RepairComponent> RepairComponents { 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
+        };
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Models/Order.cs

@@ -0,0 +1,60 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Enums;
+using System.ComponentModel.DataAnnotations;
+
+namespace CarRepairShopDatabaseImplement.Models
+{
+    public class Order
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int Count { get; private set; }
+        [Required]
+        public double Sum { get; private set; }
+        [Required]
+        public OrderStatus Status { get; private set; }
+        [Required]
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        [Required]
+        public int RepairId { get; private set; }
+        public virtual Repair? Repair { get; set; }
+
+        public static Order? Create(OrderBindingModel model)
+        {
+            return new Order()
+            {
+                Id = model.Id,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                RepairId = model.RepairId,
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            RepairId = RepairId,
+            RepairName = Repair?.RepairName ?? string.Empty,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id
+        };
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Models/Repair.cs

@@ -0,0 +1,89 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CarRepairShopDatabaseImplement.Models
+{
+    public class Repair : IRepairModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string RepairName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _repairComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> RepairComponents
+        {
+            get
+            {
+                if (_repairComponents == null)
+                {
+                    _repairComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _repairComponents;
+            }
+        }
+        [ForeignKey("RepairId")]
+        public virtual List<RepairComponent> Components { get; set; } = new();
+        [ForeignKey("RepairId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Repair Create(RepairsShopDatabase context, RepairBindingModel model)
+        {
+            return new Repair()
+            {
+                Id = model.Id,
+                RepairName = model.RepairName,
+                Price = model.Price,
+                Components = model.RepairComponents.Select(x => new RepairComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(RepairBindingModel model)
+        {
+            RepairName = model.RepairName;
+            Price = model.Price;
+        }
+        public RepairViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairName = RepairName,
+            Price = Price,
+            RepairComponents = RepairComponents
+        };
+        public void UpdateComponents(RepairsShopDatabase context, RepairBindingModel model)
+        {
+            var RepairComponents = context.RepairComponents.Where(rec => rec.RepairId == model.Id).ToList();
+            if (RepairComponents != null && RepairComponents.Count > 0)
+            { 
+                context.RepairComponents.RemoveRange(RepairComponents.Where(rec => !model.RepairComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                foreach (var updateComponent in RepairComponents)
+                {
+                    updateComponent.Count = model.RepairComponents[updateComponent.ComponentId].Item2;
+                    model.RepairComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var Repair = context.Repairs.First(x => x.Id == Id);
+            foreach (var pc in model.RepairComponents)
+            {
+                context.RepairComponents.Add(new RepairComponent
+                {
+                    Repair = Repair,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _repairComponents = null;
+        }
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/Models/RepairComponent.cs

@@ -0,0 +1,18 @@
+
+using System.ComponentModel.DataAnnotations;
+
+namespace CarRepairShopDatabaseImplement.Models
+{
+    public class RepairComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int RepairId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Repair Repair { get; set; } = new();
+    }
+}

CarRepairShop/CarRepairShopDatabaseImplement/RepairsShopDatabase.cs

@@ -0,0 +1,22 @@
+using CarRepairShopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarRepairShopDatabaseImplement
+{
+    public class RepairsShopDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=RepairsShopDataBase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True"
+                );
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Repair> Repairs { set; get; }
+        public virtual DbSet<RepairComponent> RepairComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

CarRepairShop/CarRepairShopFileImplement/CarRepairShopFileImplement.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="..\CarRepairShopContracts\CarRepairShopContracts.csproj" />
+    <ProjectReference Include="..\CarRepairShopDataModels\CarRepairShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

CarRepairShop/CarRepairShopFileImplement/DataFileSingleton.cs

@@ -0,0 +1,58 @@
+using CarRepairShopFileImplement.Models;
+using System.Xml.Linq;
+
+namespace CarRepairShopFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string RepairFileName = "Repair.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Repair> Repairs { 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 SaveRepairs() => SaveData(Repairs, RepairFileName,
+        "Repairs", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName,
+        "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x =>
+           Component.Create(x)!)!;
+            Repairs = LoadData(RepairFileName, "Repair", x =>
+           Repair.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);
+            }
+        }
+    }
+}

CarRepairShop/CarRepairShopFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,77 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopFileImplement.Models;
+
+namespace CarRepairShopFileImplement.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;
+        }
+    }
+}

CarRepairShop/CarRepairShopFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,88 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopFileImplement.Models;
+
+namespace CarRepairShopFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders
+            .Select(x => AccessRepairStorage(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 => AccessRepairStorage(x.GetViewModel)).ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return AccessRepairStorage(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 AccessRepairStorage(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 AccessRepairStorage(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 AccessRepairStorage(element.GetViewModel);
+            }
+            return null;
+        }
+        public OrderViewModel AccessRepairStorage(OrderViewModel model)
+        {
+            if (model == null)
+                return null;
+            foreach (var repair in source.Repairs)
+            {
+                if (repair.Id == model.RepairId)
+                {
+                    model.RepairName = repair.RepairName;
+                    break;
+                }
+            }
+            return model;
+        }
+    }
+}

CarRepairShop/CarRepairShopFileImplement/Implements/RepairStorage.cs

@@ -0,0 +1,77 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopFileImplement.Models;
+
+namespace CarRepairShopFileImplement.Implements
+{
+    public class RepairStorage : IRepairStorage
+    {
+        private readonly DataFileSingleton source;
+        public RepairStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<RepairViewModel> GetFullList()
+        {
+            return source.Repairs
+            .Select(x => x.GetViewModel)
+           .ToList();
+        }
+
+        public List<RepairViewModel> GetFilteredList(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName))
+            {
+                return new();
+            }
+            return source.Repairs.Where(x => x.RepairName.Contains(model.RepairName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public RepairViewModel? GetElement(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Repairs.FirstOrDefault(x =>(!string.IsNullOrEmpty(model.RepairName) && x.RepairName ==model.RepairName) ||(model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public RepairViewModel? Insert(RepairBindingModel model)
+        {
+            model.Id = source.Repairs.Count > 0 ? source.Repairs.Max(x => x.Id) + 1 : 1;
+            var newRepair = Repair.Create(model);
+            if (newRepair == null)
+            {
+                return null;
+            }
+            source.Repairs.Add(newRepair);
+            source.SaveRepairs();
+            return newRepair.GetViewModel;
+        }
+
+        public RepairViewModel? Update(RepairBindingModel model)
+        {
+            var repair = source.Repairs.FirstOrDefault(x => x.Id == model.Id);
+            if (repair == null)
+            {
+                return null;
+            }
+            repair.Update(model);
+            source.SaveRepairs();
+            return repair.GetViewModel;
+        }
+        public RepairViewModel? Delete(RepairBindingModel model)
+        {
+            var repair = source.Repairs.FirstOrDefault(x => x.Id == model.Id);
+            if (repair != null)
+            {
+                source.Repairs.Remove(repair);
+                source.SaveRepairs();
+                return repair.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

CarRepairShop/CarRepairShopFileImplement/Models/Component.cs

@@ -0,0 +1,59 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+using System.Xml.Linq;
+
+namespace CarRepairShopFileImplement.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()));
+    }
+}

CarRepairShop/CarRepairShopFileImplement/Models/Order.cs

@@ -0,0 +1,82 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Enums;
+using CarRepairShopDataModels;
+using System.Xml.Linq;
+
+namespace CarRepairShopFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public int RepairId { get; private set; }
+        public int Count { get; private set; }
+        public double Sum { get; private set; }
+        public OrderStatus Status { get; private set; }
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                RepairId = model.RepairId,
+                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),
+                RepairId = Convert.ToInt32(element.Element("RepairId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value.ToString()),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null : Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+        public void Update(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairId = RepairId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new("Order",
+        new XAttribute("Id", Id),
+        new XElement("RepairId", RepairId),
+        new XElement("Sum", Sum.ToString()),
+        new XElement("Count", Count),
+        new XElement("Status", Status.ToString()),
+        new XElement("DateCreate", DateCreate.ToString()),
+        new XElement("DateImplement", DateImplement.ToString())
+        );
+    }
+}

CarRepairShop/CarRepairShopFileImplement/Models/Repair.cs

@@ -0,0 +1,94 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+using System.Xml.Linq;
+
+namespace CarRepairShopFileImplement.Models
+{
+    public class Repair : IRepairModel
+    {
+        public int Id { get; private set; }
+        public string RepairName { 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)>? _repairComponents = null;
+        public Dictionary<int, (IComponentModel, int)> RepairComponents
+        {
+            get
+            {
+                if (_repairComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _repairComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _repairComponents;
+            }
+        }
+        public static Repair? Create(RepairBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Repair()
+            {
+                Id = model.Id,
+                RepairName = model.RepairName,
+                Price = model.Price,
+                Components = model.RepairComponents.ToDictionary(x => x.Key, x
+               => x.Value.Item2)
+            };
+        }
+        public static Repair? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Repair()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                RepairName = element.Element("RepairName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components =
+           element.Element("RepairComponents")!.Elements("RepairComponent")
+            .ToDictionary(x =>
+           Convert.ToInt32(x.Element("Key")?.Value), x =>
+           Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(RepairBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            RepairName = model.RepairName;
+            Price = model.Price;
+            Components = model.RepairComponents.ToDictionary(x => x.Key, x =>
+           x.Value.Item2);
+            _repairComponents = null;
+        }
+        public RepairViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairName = RepairName,
+            Price = Price,
+            RepairComponents = RepairComponents
+        };
+        public XElement GetXElement => new("Repair",
+        new XAttribute("Id", Id),
+        new XElement("RepairName", RepairName),
+        new XElement("Price", Price.ToString()),
+        new XElement("RepairComponents", Components.Select(x =>
+       new XElement("RepairComponent",
+
+       new XElement("Key", x.Key),
+
+       new XElement("Value", x.Value)))
+
+       .ToArray()));
+    }
+}

CarRepairShop/CarRepairShopListImplement/CarRepairShopListImplement.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="..\CarRepairShopContracts\CarRepairShopContracts.csproj" />
+    <ProjectReference Include="..\CarRepairShopDataModels\CarRepairShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

CarRepairShop/CarRepairShopListImplement/DataListSingleton.cs

@@ -0,0 +1,26 @@
+using CarRepairShopListImplement.Models;
+
+namespace CarRepairShopListImplement
+{
+    public class DataListSingleton
+    {
+        private static DataListSingleton? _instance;
+        public List<Component> Components { get; set; }
+        public List<Order> Orders { get; set; }
+        public List<Repair> Repairs { get; set; }
+        private DataListSingleton()
+        {
+            Components = new List<Component>();
+            Orders = new List<Order>();
+            Repairs = new List<Repair>();
+        }
+        public static DataListSingleton GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+            return _instance;
+        }
+    }
+}

CarRepairShop/CarRepairShopListImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,102 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopListImplement.Models;
+
+namespace CarRepairShopListImplement.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;
+        }
+    }
+}

CarRepairShop/CarRepairShopListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,113 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopListImplement.Models;
+
+namespace CarRepairShopListImplement.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(AccessRepairStorage(order.GetViewModel));
+            }
+            return result;
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (!model.Id.HasValue)
+            {
+                return result;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    result.Add(AccessRepairStorage(order.GetViewModel));
+                }
+            }
+            return result;
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id.HasValue && order.Id == model.Id)
+                {
+                    return order.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id <= order.Id)
+                {
+                    model.Id = order.Id + 1;
+                }
+            }
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            _source.Orders.Add(newOrder);
+            return newOrder.GetViewModel;
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    order.Update(model);
+                    return order.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            for (int i = 0; i < _source.Orders.Count; ++i)
+            {
+                if (_source.Orders[i].Id == model.Id)
+                {
+                    var element = _source.Orders[i];
+                    _source.Orders.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public OrderViewModel AccessRepairStorage(OrderViewModel model)
+        {
+            foreach (var repair in _source.Repairs)
+            {
+                if (repair.Id == model.RepairId)
+                {
+                    model.RepairName = repair.RepairName;
+                    break;
+                }
+            }
+            return model;
+        }
+    }
+}

CarRepairShop/CarRepairShopListImplement/Implements/RepairStorage.cs

@@ -0,0 +1,102 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.SearchModels;
+using CarRepairShopContracts.StoragesContracts;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopListImplement.Models;
+
+namespace CarRepairShopListImplement.Implements
+{
+    public class RepairStorage : IRepairStorage
+    {
+        private readonly DataListSingleton _source;
+        public RepairStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<RepairViewModel> GetFullList()
+        {
+            var result = new List<RepairViewModel>();
+            foreach (var repair in _source.Repairs)
+            {
+                result.Add(repair.GetViewModel);
+            }
+            return result;
+        }
+        public List<RepairViewModel> GetFilteredList(RepairSearchModel model)
+        {
+            var result = new List<RepairViewModel>();
+            if (string.IsNullOrEmpty(model.RepairName))
+            {
+                return result;
+            }
+            foreach (var repair in _source.Repairs)
+            {
+                if (repair.RepairName.Contains(model.RepairName))
+                {
+                    result.Add(repair.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public RepairViewModel? GetElement(RepairSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.RepairName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var repair in _source.Repairs)
+            {
+                if ((!string.IsNullOrEmpty(model.RepairName) &&
+               repair.RepairName == model.RepairName) ||
+                (model.Id.HasValue && repair.Id == model.Id))
+                {
+                    return repair.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public RepairViewModel? Insert(RepairBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var repair in _source.Repairs)
+            {
+                if (model.Id <= repair.Id)
+                {
+                    model.Id = repair.Id + 1;
+                }
+            }
+            var newRepair = Repair.Create(model);
+            if (newRepair == null)
+            {
+                return null;
+            }
+            _source.Repairs.Add(newRepair);
+            return newRepair.GetViewModel;
+        }
+        public RepairViewModel? Update(RepairBindingModel model)
+        {
+            foreach (var repair in _source.Repairs)
+            {
+                if (repair.Id == model.Id)
+                {
+                    repair.Update(model);
+                    return repair.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public RepairViewModel? Delete(RepairBindingModel model)
+        {
+            for (int i = 0; i < _source.Repairs.Count; ++i)
+            {
+                if (_source.Repairs[i].Id == model.Id)
+                {
+                    var element = _source.Repairs[i];
+                    _source.Repairs.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

CarRepairShop/CarRepairShopListImplement/Models/Component.cs

@@ -0,0 +1,41 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+
+namespace CarRepairShopListImplement.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
+        };
+    }
+}

CarRepairShop/CarRepairShopListImplement/Models/Order.cs

@@ -0,0 +1,54 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels;
+using CarRepairShopDataModels.Enums;
+
+namespace CarRepairShopListImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int RepairId { get; private set; }
+        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 int Id { get; private set; }
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order
+            {
+                RepairId = model.RepairId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                Id = model.Id,
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            RepairId = RepairId,
+            Count = Count,
+            Sum = Sum,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id,
+            Status = Status,
+        };
+    }
+}

CarRepairShop/CarRepairShopListImplement/Models/Repair.cs

@@ -0,0 +1,49 @@
+using CarRepairShopContracts.BindingModels;
+using CarRepairShopContracts.ViewModels;
+using CarRepairShopDataModels.Models;
+
+namespace CarRepairShopListImplement.Models
+{
+    public class Repair : IRepairModel
+    {
+        public int Id { get; private set; }
+        public string RepairName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, (IComponentModel, int)> RepairComponents
+        {
+            get;
+            private set;
+        } = new Dictionary<int, (IComponentModel, int)>();
+        public static Repair? Create(RepairBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Repair()
+            {
+                Id = model.Id,
+                RepairName = model.RepairName,
+                Price = model.Price,
+                RepairComponents = model.RepairComponents
+            };
+        }
+        public void Update(RepairBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            RepairName = model.RepairName;
+            Price = model.Price;
+            RepairComponents = model.RepairComponents;
+        }
+        public RepairViewModel GetViewModel => new()
+        {
+            Id = Id,
+            RepairName = RepairName,
+            Price = Price,
+            RepairComponents = RepairComponents
+        };
+    }
+}