Нужен был Linq метод...

ComputersShop/ComputersShop.sln

@@ -3,7 +3,17 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.3.32825.248
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputersShop", "ComputersShop\ComputersShop.csproj", "{43D109AA-CB08-47EB-9A8B-B42F881C08F4}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "СomputersShopDataModels", "СomputersShopDataModels\СomputersShopDataModels.csproj", "{325A0EEC-AE7D-49D4-9441-4B390F3D47AC}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopContracts", "ComputersShopContracts\ComputersShopContracts.csproj", "{36B9AA43-8BA7-49B0-845C-2CAE5715670C}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopBusinessLogic", "ComputersShopBusinessLogic\ComputersShopBusinessLogic.csproj", "{CDFC655D-B1F8-4D87-9400-A0847FCAEAC6}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopListImplement", "ComputersShopListImplement\ComputersShopListImplement.csproj", "{35DC2893-12C1-417B-9B92-5A18997B47A6}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopView", "ComputersShopView\ComputersShopView.csproj", "{B0416A4B-CD04-4991-BC00-7FCFC9DEEF73}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputersShopFileImplement", "ComputersShopFileImplement\ComputersShopFileImplement.csproj", "{58BB53D3-F224-451F-B9BD-D1D67ACE7F23}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -11,10 +21,30 @@ Global
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{43D109AA-CB08-47EB-9A8B-B42F881C08F4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{43D109AA-CB08-47EB-9A8B-B42F881C08F4}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{43D109AA-CB08-47EB-9A8B-B42F881C08F4}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{43D109AA-CB08-47EB-9A8B-B42F881C08F4}.Release|Any CPU.Build.0 = Release|Any CPU
+		{325A0EEC-AE7D-49D4-9441-4B390F3D47AC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{325A0EEC-AE7D-49D4-9441-4B390F3D47AC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{325A0EEC-AE7D-49D4-9441-4B390F3D47AC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{325A0EEC-AE7D-49D4-9441-4B390F3D47AC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{36B9AA43-8BA7-49B0-845C-2CAE5715670C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{36B9AA43-8BA7-49B0-845C-2CAE5715670C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{36B9AA43-8BA7-49B0-845C-2CAE5715670C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{36B9AA43-8BA7-49B0-845C-2CAE5715670C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CDFC655D-B1F8-4D87-9400-A0847FCAEAC6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CDFC655D-B1F8-4D87-9400-A0847FCAEAC6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CDFC655D-B1F8-4D87-9400-A0847FCAEAC6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CDFC655D-B1F8-4D87-9400-A0847FCAEAC6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{35DC2893-12C1-417B-9B92-5A18997B47A6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{35DC2893-12C1-417B-9B92-5A18997B47A6}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{35DC2893-12C1-417B-9B92-5A18997B47A6}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{35DC2893-12C1-417B-9B92-5A18997B47A6}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B0416A4B-CD04-4991-BC00-7FCFC9DEEF73}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B0416A4B-CD04-4991-BC00-7FCFC9DEEF73}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B0416A4B-CD04-4991-BC00-7FCFC9DEEF73}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B0416A4B-CD04-4991-BC00-7FCFC9DEEF73}.Release|Any CPU.Build.0 = Release|Any CPU
+		{58BB53D3-F224-451F-B9BD-D1D67ACE7F23}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{58BB53D3-F224-451F-B9BD-D1D67ACE7F23}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{58BB53D3-F224-451F-B9BD-D1D67ACE7F23}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{58BB53D3-F224-451F-B9BD-D1D67ACE7F23}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ComputersShop/ComputersShop/ComputersShop.csproj

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

ComputersShop/ComputersShop/Form1.Designer.cs

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

ComputersShop/ComputersShop/Form1.cs

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

ComputersShop/ComputersShop/Form1.resx

@@ -1,120 +0,0 @@
-<?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>

ComputersShop/ComputersShop/Program.cs

@@ -1,17 +0,0 @@
-namespace ComputersShop
-{
-    internal static class Program
-    {
-        /// <summary>
-        ///  The main entry point for the application.
-        /// </summary>
-        [STAThread]
-        static void Main()
-        {
-            // To customize application configuration such as set high DPI settings or default font,
-            // see https://aka.ms/applicationconfiguration.
-            ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
-        }
-    }
-}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ComponentLogic.cs

@@ -0,0 +1,114 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class ComponentLogic : IComponentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComponentStorage _componentStorage;
+
+        public ComponentLogic(ILogger<ComponentLogic> logger, IComponentStorage componentStorage)
+        {
+            _logger = logger;
+            _componentStorage = componentStorage;
+        }
+
+        public List<ComponentViewModel>? ReadList(ComponentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ComponentName:{ComponentName}.Id:{ Id}", model?.ComponentName, model?.Id);
+            var list = model == null ? _componentStorage.GetFullList() : _componentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public ComponentViewModel? ReadElement(ComponentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. ComponentName:{ComponentName}.Id:{ Id}", model.ComponentName, model.Id);
+            var element = _componentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+        public bool Create(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Update(ComponentBindingModel model)
+        {
+            CheckModel(model);
+            if (_componentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(ComponentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_componentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(ComponentBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                throw new ArgumentNullException("Нет названия компонента", nameof(model.ComponentName));
+            }
+            if (model.Cost <= 0)
+            {
+                throw new ArgumentNullException("Цена компонента должна быть больше 0", nameof(model.Cost));
+            }
+            _logger.LogInformation("Component. ComponentName:{ComponentName}.Cost:{ Cost}. Id: { Id}", model.ComponentName, model.Cost, model.Id);
+            var element = _componentStorage.GetElement(new ComponentSearchModel
+            {
+                ComponentName = model.ComponentName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Компонент с таким названием уже есть");
+            }
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ComputerLogic.cs

@@ -0,0 +1,119 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class ComputerLogic : IComputerLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IComputerStorage _computerStorage;
+
+        public ComputerLogic(ILogger<ComputerLogic> logger, IComputerStorage computerStorage)
+        {
+            _logger = logger;
+            _computerStorage = computerStorage;
+        }
+
+        public List<ComputerViewModel>? ReadList(ComputerSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ComputerName:{ComputerName}.Id:{ Id}", model?.ComputerName, model?.Id);
+            var list = model == null ? _computerStorage.GetFullList() : _computerStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public ComputerViewModel? ReadElement(ComputerSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. ComputerName:{ComputerName}.Id:{ Id}", model.ComputerName, model.Id);
+            var element = _computerStorage.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(ComputerBindingModel model)
+        {
+            CheckModel(model);
+            if (_computerStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ComputerBindingModel model)
+        {
+            CheckModel(model);
+            if (_computerStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ComputerBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_computerStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ComputerBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                throw new ArgumentNullException("Нет названия компьютера", nameof(model.ComputerName));
+            }
+            if (model.Price <= 0)
+            {
+                throw new ArgumentNullException("Цена компьютера должна быть больше 0", nameof(model.Price));
+            }
+            _logger.LogInformation("Computer. ComputerName:{ComputerName}.Cost:{ Cost}. Id: { Id}", model.ComputerName, model.Price, model.Id);
+            var element = _computerStorage.GetElement(new ComputerSearchModel
+            {
+                ComputerName = model.ComputerName
+            });
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Компьютер с таким названием уже есть");
+            }
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/OrderLogic.cs

@@ -0,0 +1,141 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+        private readonly IShopLogic _shopLogic;
+        private readonly IComputerStorage _computerStorage;
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, IShopLogic shopLogic, IComputerStorage computerStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+            _shopLogic = shopLogic;
+            _computerStorage = computerStorage;
+        }
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (model.Status != OrderStatus.Неизвестен)
+            {
+                _logger.LogWarning("Insert operation failed. Order status incorrect.");
+                return false;
+            }
+            model.Status = OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null)
+            {
+                model.Status = OrderStatus.Неизвестен;
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool StatusUpdate(OrderBindingModel model, OrderStatus newStatus)
+        {
+            var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
+            if (viewModel == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (viewModel.Status + 1 != newStatus)
+            {
+                _logger.LogWarning("Update operation failed. Order status incorrect.");
+                return false;
+            }
+            model.Status = newStatus;
+            if (model.Status == OrderStatus.Готов)
+            {
+
+                model.DateImplement = DateTime.Now;
+                var computer = _computerStorage.GetElement(new() { Id = viewModel.ComputerId });
+                if (computer == null)
+                {
+                    throw new ArgumentNullException(nameof(computer));
+                }
+                if (!_shopLogic.AddComputers(computer, viewModel.Count))
+                {
+                    throw new Exception($"AddComputers operation failed - нет места");
+                }
+            }
+            else
+            {
+                model.DateImplement = viewModel.DateImplement;
+            }
+            CheckModel(model, false);
+            if (_orderStorage.Update(model) == null)
+            {
+                model.Status--;
+                _logger.LogWarning("Change status operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выдан);
+        }
+
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Готов);
+        }
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return StatusUpdate(model, OrderStatus.Выполняется);
+        }
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. OrderId:{Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() :
+                                   _orderStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.ComputerId < 0)
+            {
+                throw new ArgumentNullException("Некорректный идентификатор документа",
+                    nameof(model.ComputerId));
+            }
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException("Количество компьютеров в заказе должно быть больше 0",
+                    nameof(model.Count));
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Сумма заказа должна быть больше 0",
+                    nameof(model.Sum));
+            }
+            _logger.LogInformation("Computer. OrderID:{Id}. Sum:{Sum}. ComputerID:{ComputerID}.}",
+                model.Id, model.Sum, model.ComputerId);
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ShopLogic.cs

@@ -0,0 +1,242 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class ShopLogic : IShopLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IShopStorage _shopStorage;
+        public ShopLogic(ILogger<ShopLogic> logger, IShopStorage ShopStorage)
+        {
+            _logger = logger;
+            _shopStorage = ShopStorage;
+        }
+        public bool AddComputer(ShopSearchModel model, IComputerModel computer, int quantity)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            if (quantity <= 0)
+            {
+                return false;
+                throw new ArgumentException("Количество добавляемого компьютера должно быть больше 0", nameof(quantity));
+            }
+
+            _logger.LogInformation("AddComputerInShop. ShopName:{ShopName}.Id:{ Id}", model.ShopName, model.Id);
+            var element = _shopStorage.GetElement(model);
+
+            if (element == null)
+            {
+                _logger.LogWarning("AddComputerInShop element not found");
+                return false;
+            }
+
+            if (element.Capacity - element.Computers.Select(x => x.Value.Item2).Sum() < quantity)
+            {
+                throw new ArgumentNullException("В магазине не хватает места", nameof(quantity));
+            }
+
+            if (element.Computers.TryGetValue(computer.Id, out var pair))
+            {
+                element.Computers[computer.Id] = (computer, quantity + pair.Item2);
+                _logger.LogInformation("AddComputerInShop. Has been added {quantity} {Computer} in {ShopName}", quantity, computer.ComputerName, element.ShopName);
+            }
+            else
+            {
+                element.Computers[computer.Id] = (computer, quantity);
+                _logger.LogInformation("AddPastryInShop. Has been added {quantity} new Computer {Computer} in {ShopName}", quantity, computer.ComputerName, element.ShopName);
+            }
+
+            _shopStorage.Update(new()
+            {
+                Id = element.Id,
+                ShopAddress = element.ShopAddress,
+                ShopName = element.ShopName,
+                DateOpening = element.DateOpening,
+                Computers = element.Computers,
+                Capacity = element.Capacity,
+            });
+            return true;
+        }
+
+        public bool AddComputers(IComputerModel computer, int quantity)
+        {
+            if (computer == null)
+            {
+                throw new ArgumentNullException(nameof(computer));
+            }
+            if (quantity <= 0)
+            {
+                throw new ArgumentException("Количество компьютеров должно быть больше 0", nameof(quantity));
+            }
+            _logger.LogInformation("AddComputers. ShopName:{ShopName}. Id:{Id}", computer.ComputerName, computer.Id);
+            var allFreeQuantity = _shopStorage.GetFullList().Select(x => x.Capacity - x.Computers.Select(x => x.Value.Item2).Sum()).Sum();
+            if (allFreeQuantity < quantity)
+            {
+                _logger.LogWarning("AddComputers operation failed.");
+                return false;
+            }
+            foreach (var shop in _shopStorage.GetFullList())
+            {
+                int freeQuantity = shop.Capacity - shop.Computers.Select(x => x.Value.Item2).Sum();
+                if (freeQuantity <= 0)
+                {
+                    continue;
+                }
+                if (freeQuantity < quantity)
+                {
+                    if (!AddComputer(new() { Id = shop.Id }, computer, freeQuantity))
+                    {
+                        _logger.LogWarning("AddComputers operation failed.");
+                        return false;
+                    }
+                    quantity -= freeQuantity;
+                }
+                else
+                {
+                    if (!AddComputer(new() { Id = shop.Id }, computer, quantity))
+                    {
+                        _logger.LogWarning("AddComputers operation failed.");
+                        return false;
+                    }
+                    quantity = 0;
+                }
+                if (quantity == 0)
+                {
+                    return true;
+                }
+            }
+            _logger.LogWarning("AddComputers operation failed.");
+            return false;
+        }
+
+        public bool Create(ShopBindingModel model)
+        {
+            CheckModel(model);
+            model.Computers = new();
+
+            if (_shopStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool Delete(ShopBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+
+            if (_shopStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+
+            return true;
+        }
+
+        public ShopViewModel? ReadElement(ShopSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            _logger.LogInformation("ReadElement. ShopName:{ShopName}.Id:{ Id}", model.ShopName, model.Id);
+            var element = _shopStorage.GetElement(model);
+
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<ShopViewModel>? ReadList(ShopSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ShopName:{ShopName}.Id:{ Id} ", model?.ShopName, model?.Id);
+
+            var list = (model == null) ? _shopStorage.GetFullList() : _shopStorage.GetFilteredList(model);
+
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool SellComputers(IComputerModel computer, int quantity)
+        {
+            return _shopStorage.SellComputers(computer, quantity);
+        }
+
+        public bool Update(ShopBindingModel model)
+        {
+            CheckModel(model, false);
+
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                throw new ArgumentNullException("Нет названия магазина", nameof(model.ShopName));
+            }
+
+            if (_shopStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ShopBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+
+            if (!withParams)
+            {
+                return;
+            }
+
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                throw new ArgumentNullException("Нет названия магазина", nameof(model.ShopName));
+            }
+
+            _logger.LogInformation("Shop. ShopName:{0}.ShopAdress:{1}. Id: {2}", model.ShopName, model.ShopAddress, model.Id);
+            var element = _shopStorage.GetElement(new ShopSearchModel
+            {
+                ShopName = model.ShopName
+            });
+
+            if (element != null && element.Id != model.Id && element.ShopName == model.ShopName)
+            {
+                throw new InvalidOperationException("Магазин с таким названием уже есть");
+            }
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/ComputersShopBusinessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,17 @@
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+	public class ComponentBindingModel : IComponentModel
+	{
+		public int Id { get; set; }
+		public string ComponentName { get; set; } = string.Empty;
+		public double Cost { get; set; }
+	}
+}

ComputersShop/ComputersShopContracts/BindingModels/ComputerBindingModel.cs

@@ -0,0 +1,20 @@
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class ComputerBindingModel : IComputerModel
+    {
+        public int Id { get; set; }
+
+        public string ComputerName { get; set; } = string.Empty;
+
+        public double Price { get; set; }
+
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents { get; set; } = new();
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/OrderBindingModel.cs

@@ -0,0 +1,21 @@
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class OrderBindingModel : IOrderModel
+    {
+        public int Id { get; set; }
+        public int ComputerId { 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; }
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/ShopBindingModel.cs

@@ -0,0 +1,19 @@
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class ShopBindingModel : IShopModel
+    {
+        public int Id { get; set; }
+        public string ShopName { get; set; } = string.Empty;
+        public string ShopAddress { get; set; } = string.Empty;
+        public DateTime DateOpening { get; set; } = DateTime.Now;
+        public Dictionary<int, (IComputerModel, int)> Computers { get; set; } = new();
+        public int Capacity { get; set; }
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicContracts/IComponentLogic.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BusinessLogicContracts
+{
+    public interface IComponentLogic
+    {
+        List<ComponentViewModel>? ReadList(ComponentSearchModel? model);
+        ComponentViewModel? ReadElement(ComponentSearchModel model);
+        bool Create(ComponentBindingModel model);
+        bool Update(ComponentBindingModel model);
+        bool Delete(ComponentBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicContracts/IComputerLogic.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BusinessLogicContracts
+{
+    public interface IComputerLogic
+    {
+        List<ComputerViewModel>? ReadList(ComputerSearchModel? model);
+        ComputerViewModel? ReadElement(ComputerSearchModel model);
+        bool Create(ComputerBindingModel model);
+        bool Update(ComputerBindingModel model);
+        bool Delete(ComputerBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicContracts/IOrderLogic.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BusinessLogicContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicContracts/IShopLogic.cs

@@ -0,0 +1,24 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BusinessLogicContracts
+{
+    public interface IShopLogic
+    {
+        List<ShopViewModel>? ReadList(ShopSearchModel? model);
+        ShopViewModel? ReadElement(ShopSearchModel model);
+        bool Create(ShopBindingModel model);
+        bool Update(ShopBindingModel model);
+        bool Delete(ShopBindingModel model);
+        bool AddComputer(ShopSearchModel model, IComputerModel computer, int quantity);
+        bool AddComputers(IComputerModel computer, int quantity);
+        bool SellComputers(IComputerModel computer, int quantity);
+    }
+}

ComputersShop/ComputersShopContracts/ComputersShopContracts.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\СomputersShopDataModels\СomputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopContracts/SearchModels/ComponentSearchModel.cs

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

ComputersShop/ComputersShopContracts/SearchModels/ComputerSearchModel.cs

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

ComputersShop/ComputersShopContracts/SearchModels/OrderSearchModel.cs

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

ComputersShop/ComputersShopContracts/SearchModels/ShopSearchModel.cs

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

ComputersShop/ComputersShopContracts/StorageContracts/IComponentStorage.cs

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

ComputersShop/ComputersShopContracts/StorageContracts/IComputerStorage.cs

@@ -0,0 +1,21 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IComputerStorage
+    {
+        List<ComputerViewModel> GetFullList();
+        List<ComputerViewModel> GetFilteredList(ComputerSearchModel model);
+        ComputerViewModel? GetElement(ComputerSearchModel model);
+        ComputerViewModel? Insert(ComputerBindingModel model);
+        ComputerViewModel? Update(ComputerBindingModel model);
+        ComputerViewModel? Delete(ComputerBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/StorageContracts/IOrderStorage.cs

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

ComputersShop/ComputersShopContracts/StorageContracts/IShopStorage.cs

@@ -0,0 +1,23 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IShopStorage
+    {
+        List<ShopViewModel> GetFullList();
+        List<ShopViewModel> GetFilteredList(ShopSearchModel model);
+        ShopViewModel? GetElement(ShopSearchModel model);
+        ShopViewModel? Insert(ShopBindingModel model);
+        ShopViewModel? Update(ShopBindingModel model);
+        ShopViewModel? Delete(ShopBindingModel model);
+        bool SellComputers(IComputerModel model, int quantity);
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/ComponentViewModel.cs

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

ComputersShop/ComputersShopContracts/ViewModels/ComputerViewModel.cs

@@ -0,0 +1,27 @@
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class ComputerViewModel : IComputerModel
+    {
+        public int Id { get; set; }
+
+        [DisplayName("Название компьютера")]
+        public string ComputerName { get; set; } = string.Empty;
+
+        [DisplayName("Цена")]
+        public double Price { get; set; }
+
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents
+        {
+            get;
+            set;
+        } = new();
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/OrderViewModel.cs

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

ComputersShop/ComputersShopContracts/ViewModels/ShopViewModel.cs

@@ -0,0 +1,25 @@
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class ShopViewModel : IShopModel
+    {
+        public Dictionary<int, (IComputerModel, int)> Computers { get; set; } = new();
+        public int Id { get; set; }
+
+        [DisplayName("Название магазина")]
+        public string ShopName { get; set; } = string.Empty;
+        [DisplayName("Адрес магазина")]
+        public string ShopAddress { get; set; } = string.Empty;
+        [DisplayName("Дата открытия")]
+        public DateTime DateOpening { get; set; } = DateTime.Now;
+        [DisplayName("Вместимость магазина")]
+        public int Capacity { get; set; }
+    }
+}

ComputersShop/ComputersShopFileImplement/ComputersShopFileImplement.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="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\СomputersShopDataModels\СomputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopFileImplement/DataFileSingleton.cs

@@ -0,0 +1,58 @@
+using ComputersShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement
+{
+    public class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string ComputerFileName = "Computer.xml";
+        private readonly string ShopFileName = "Shop.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Computer> Computers { get; private set; }
+        public List<Shop> Shops { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
+        public void SaveComputers() => SaveData(Computers, ComputerFileName, "Computers", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        public void SaveShops() => SaveData(Shops, ShopFileName, "Shops", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Computers = LoadData(ComputerFileName, "Computer", x => Computer.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+            Shops = LoadData(ShopFileName, "Shop", x => Shop.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return
+               XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}

ComputersShop/ComputersShopFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,78 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplement.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;
+        }
+
+    }
+}

ComputersShop/ComputersShopFileImplement/Implements/ComputerStorage.cs

@@ -0,0 +1,82 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplement.Implements
+{
+    public class ComputerStorage : IComputerStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public ComputerStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public ComputerViewModel? GetElement(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Computers.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComputerName) && x.ComputerName == model.ComputerName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<ComputerViewModel> GetFilteredList(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                return new();
+            }
+            return source.Computers.Where(x => x.ComputerName.Contains(model.ComputerName)).Select(x => x.GetViewModel).ToList();
+        }
+
+        public List<ComputerViewModel> GetFullList()
+        {
+            return source.Computers.Select(x => x.GetViewModel).ToList();
+        }
+
+        public ComputerViewModel? Insert(ComputerBindingModel model)
+        {
+            model.Id = source.Computers.Count > 0 ? source.Computers.Max(x => x.Id) + 1 : 1;
+            var newDoc = Computer.Create(model);
+            if (newDoc == null)
+            {
+                return null;
+            }
+            source.Computers.Add(newDoc);
+            source.SaveComputers();
+            return newDoc.GetViewModel;
+        }
+
+        public ComputerViewModel? Update(ComputerBindingModel model)
+        {
+            var document = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+            if (document == null)
+            {
+                return null;
+            }
+            document.Update(model);
+            source.SaveComputers();
+            return document.GetViewModel;
+        }
+        public ComputerViewModel? Delete(ComputerBindingModel model)
+        {
+            var document = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+            if (document == null)
+            {
+                return null;
+            }
+            document.Update(model);
+            source.SaveComputers();
+            return document.GetViewModel;
+        }
+    }
+}

ComputersShop/ComputersShopFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,93 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return GetViewModel(source.Orders.FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id));
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders.Where(x => x.Id == model.Id).Select(x => GetViewModel(x)).ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        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 GetViewModel(newOrder);
+        }
+
+        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 GetViewModel(order);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var comp = source.Computers.FirstOrDefault(comp => comp.Id == order.ComputerId);
+                if (comp != null)
+                {
+                    viewModel.ComputerName = comp.ComputerName;
+                }
+            return viewModel;
+        }
+    }
+}

ComputersShop/ComputersShopFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,128 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using ComputersShopFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopFileImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public ShopStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            var shop = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop != null)
+            {
+                source.Shops.Remove(shop);
+                source.SaveShops();
+                return shop.GetViewModel;
+            }
+            return null;
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Shops
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+            return source.Shops
+                .Where(x => x.ShopName.Contains(model.ShopName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<ShopViewModel> GetFullList()
+        {
+            return source.Shops.Select(x => x.GetViewModel).ToList();
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            model.Id = source.Shops.Count > 0 ? source.Shops.Max(x => x.Id) + 1 : 1;
+            var newShop = Shop.Create(model);
+            if (newShop == null)
+            {
+                return null;
+            }
+            source.Shops.Add(newShop);
+            source.SaveShops();
+            return newShop.GetViewModel;
+        }
+
+        public bool SellComputers(IComputerModel model, int quantity)
+        {
+            int hasCount = source.Shops
+            .SelectMany(x => x.Computers)
+            .Where(pair => pair.Key == model.Id)
+            .Sum(pair => pair.Value.Item2);
+
+            if (hasCount < quantity)
+                return false;
+
+            source.Shops.ForEach(x =>
+            {
+                if (x.Computers.TryGetValue(model.Id, out var pair))
+                {
+                    if (quantity >= pair.Item2)
+                    {
+                        quantity -= pair.Item2;
+                        x.Computers[model.Id] = (model, 0);
+                    }
+                    else
+                    {
+                        x.Computers[model.Id] = (model, pair.Item2 - quantity);
+                        quantity = 0;
+                    }
+
+                    x.Update(new ShopBindingModel
+                    {
+                        Id = x.Id,
+                        ShopAddress = x.ShopAddress,
+                        Capacity = x.Capacity,
+                        DateOpening = x.DateOpening,
+                        ShopName = x.ShopName,
+                        Computers = x.Computers
+                    });
+                }
+            });
+
+            source.SaveShops();
+            return true;
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            var shop = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop == null)
+            {
+                return null;
+            }
+            shop.Update(model);
+            source.SaveShops();
+            return shop.GetViewModel;
+        }
+    }
+}

ComputersShop/ComputersShopFileImplement/Models/Component.cs

@@ -0,0 +1,64 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement.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()));
+    }
+}

ComputersShop/ComputersShopFileImplement/Models/Computer.cs

@@ -0,0 +1,95 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement.Models
+{
+    public class Computer : IComputerModel
+    {
+        public int Id { get; private set; }
+        public string ComputerName { 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)>? _ComputerComponents = null;
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents
+        {
+            get
+            {
+                if (_ComputerComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _ComputerComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _ComputerComponents;
+            }
+        }
+        public static Computer? Create(ComputerBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Computer()
+            {
+                Id = model.Id,
+                ComputerName = model.ComputerName,
+                Price = model.Price,
+                Components = model.ComputerComponents.ToDictionary(x => x.Key, x
+               => x.Value.Item2)
+            };
+        }
+        public static Computer? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Computer()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComputerName = element.Element("ComputerName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components =
+           element.Element("ComputerComponents")!.Elements("ComputerComponent")
+            .ToDictionary(x =>
+           Convert.ToInt32(x.Element("Key")?.Value), x =>
+           Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(ComputerBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComputerName = model.ComputerName;
+            Price = model.Price;
+            Components = model.ComputerComponents.ToDictionary(x => x.Key, x =>
+           x.Value.Item2);
+            _ComputerComponents = null;
+        }
+        public ComputerViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerName = ComputerName,
+            Price = Price,
+            ComputerComponents = ComputerComponents
+        };
+        public XElement GetXElement => new("Computer",
+            new XAttribute("Id", Id),
+            new XElement("ComputerName", ComputerName),
+            new XElement("Price", Price.ToString()),
+            new XElement("ComputerComponents", Components.Select(x => new XElement("ComputerComponent", new XElement("Key", x.Key), new XElement("Value", x.Value)))
+
+       .ToArray()));
+
+    }
+}

ComputersShop/ComputersShopFileImplement/Models/Order.cs

@@ -0,0 +1,104 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int ComputerId { 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()
+            {
+                Id = model.Id,
+                ComputerId = model.ComputerId,
+                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;
+            }
+            var order = new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComputerId = Convert.ToInt32(element.Element("ComputerId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                DateCreate = DateTime.ParseExact(element.Element("DateCreate")!.Value, "G", null),
+            };
+            DateTime.TryParse(element.Element("DateImplement")!.Value, out DateTime dateImpl);
+
+            order.DateImplement = dateImpl;
+
+            if (!Enum.TryParse(element.Element("Status")!.Value, out OrderStatus status))
+            {
+                return null;
+            }
+            order.Status = status;
+            return order;
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerId = ComputerId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+
+        public XElement GetXElement => new("Order",
+          new XAttribute("Id", Id),
+          new XElement("ComputerId", ComputerId),
+          new XElement("Count", Count.ToString()),
+          new XElement("Sum", Sum.ToString()),
+          new XElement("Status", Status.ToString()),
+          new XElement("DateCreate", DateCreate.ToString()),
+          new XElement("DateImplement", DateImplement.ToString()));
+    }
+}

ComputersShop/ComputersShopFileImplement/Models/Shop.cs

@@ -0,0 +1,108 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; private set; }
+        public string ShopName { get; private set; } = string.Empty;
+        public string ShopAddress { get; private set; } = string.Empty;
+        public DateTime DateOpening { get; private set; }
+        public int Capacity { get; private set; }
+        public Dictionary<int, int> ComputersCount = new();
+        public Dictionary<int, (IComputerModel, int)>? _computers = null;
+        public Dictionary<int, (IComputerModel, int)> Computers
+        {
+            get
+            {
+                if (_computers == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _computers = ComputersCount.ToDictionary(
+                        x => x.Key,
+                        y => ((source.Computers.FirstOrDefault(z => z.Id == y.Key) as IComputerModel)!,
+                            y.Value)
+                    );
+                }
+                return _computers;
+            }
+        }
+        public static Shop? Create(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                ShopAddress = model.ShopAddress,
+                DateOpening = model.DateOpening,
+                Capacity = model.Capacity,
+                ComputersCount = model.Computers.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Shop? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ShopName = element.Element("ShopName")!.Value,
+                ShopAddress = element.Element("ShopAddress")!.Value,
+                DateOpening = Convert.ToDateTime(element.Element("DateOpening")!.Value),
+                Capacity = Convert.ToInt32(element.Element("Capacity")!.Value),
+                ComputersCount = element.Element("Computers")!.Elements("Computer")
+                    .ToDictionary(
+                        x => Convert.ToInt32(x.Element("Key")?.Value),
+                        x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            ShopAddress = model.ShopAddress;
+            DateOpening = model.DateOpening;
+            Capacity = model.Capacity;
+            ComputersCount = model.Computers.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _computers = null;
+
+        }
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            ShopAddress = ShopAddress,
+            DateOpening = DateOpening,
+            Capacity = Capacity,
+            Computers = Computers
+        };
+        public XElement GetXElement => new("Shop",
+            new XAttribute("Id", Id),
+            new XElement("ShopName", ShopName),
+            new XElement("ShopAddress", ShopAddress),
+            new XElement("DateOpening", DateOpening.ToString()),
+            new XElement("Capacity", Capacity.ToString()),
+            new XElement("Computers", ComputersCount.Select(x =>
+            new XElement("Computer",
+                new XElement("Key", x.Key),
+                new XElement("Value", x.Value)))
+                .ToArray()));
+    }
+}

ComputersShop/ComputersShopListImplement/ComputersShopListImplement.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\СomputersShopDataModels\СomputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopListImplement/DataListSingleton.cs

@@ -0,0 +1,34 @@
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement
+{
+    public class DataListSingleton
+    {
+        private static DataListSingleton? _instance;
+        public List<Component> Components { get; set; }
+        public List<Order> Orders { get; set; }
+        public List<Computer> Computers { get; set; }
+        public List<Shop> Shops { get; set; }
+        private DataListSingleton()
+        {
+            Components = new List<Component>();
+            Orders = new List<Order>();
+            Computers = new List<Computer>();
+            Shops = new List<Shop>();
+        }
+        public static DataListSingleton GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+            return _instance;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,106 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.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;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ComputerStorage.cs

@@ -0,0 +1,106 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+    public class ComputerStorage : IComputerStorage
+    {
+        private readonly DataListSingleton _source;
+        public ComputerStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public List<ComputerViewModel> GetFullList()
+        {
+            var result = new List<ComputerViewModel>();
+            foreach (var Computer in _source.Computers)
+            {
+                result.Add(Computer.GetViewModel);
+            }
+            return result;
+        }
+        public List<ComputerViewModel> GetFilteredList(ComputerSearchModel model)
+        {
+            var result = new List<ComputerViewModel>();
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                return result;
+            }
+            foreach (var Computer in _source.Computers)
+            {
+                if (Computer.ComputerName.Contains(model.ComputerName))
+                {
+                    result.Add(Computer.GetViewModel);
+                }
+            }
+            return result;
+        }
+        public ComputerViewModel? GetElement(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var Computer in _source.Computers)
+            {
+                if ((!string.IsNullOrEmpty(model.ComputerName) && Computer.ComputerName == model.ComputerName) ||
+                (model.Id.HasValue && Computer.Id == model.Id))
+                {
+                    return Computer.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComputerViewModel? Insert(ComputerBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var Computer in _source.Computers)
+            {
+                if (model.Id <= Computer.Id)
+                {
+                    model.Id = Computer.Id + 1;
+                }
+            }
+            var newComputer = Computer.Create(model);
+            if (newComputer == null)
+            {
+                return null;
+            }
+            _source.Computers.Add(newComputer);
+            return newComputer.GetViewModel;
+        }
+        public ComputerViewModel? Update(ComputerBindingModel model)
+        {
+            foreach (var Computer in _source.Computers)
+            {
+                if (Computer.Id == model.Id)
+                {
+                    Computer.Update(model);
+                    return Computer.GetViewModel;
+                }
+            }
+            return null;
+        }
+        public ComputerViewModel? Delete(ComputerBindingModel model)
+        {
+            for (int i = 0; i < _source.Computers.Count; ++i)
+            {
+                if (_source.Computers[i].Id == model.Id)
+                {
+                    var element = _source.Computers[i];
+                    _source.Computers.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/OrderStorage.cs

@@ -0,0 +1,120 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrdersShopListImplement.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(GetViewModel(Order));
+            }
+            return result;
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (model == null)
+            {
+                return result;
+            }
+            foreach (var Order in _source.Orders)
+            {
+                if (Order.Id == model.Id)
+                {
+                    result.Add(GetViewModel(Order));
+                }
+            }
+            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 GetViewModel(Order);
+                }
+            }
+            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 GetViewModel(newOrder);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var Order in _source.Orders)
+            {
+                if (Order.Id == model.Id)
+                {
+                    Order.Update(model);
+                    return GetViewModel(Order);
+                }
+            }
+            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 GetViewModel(element);
+                }
+            }
+            return null;
+        }
+
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            foreach (var comp in _source.Computers)
+            {
+                if (comp.Id == order.ComputerId)
+                {
+                    viewModel.ComputerName = comp.ComputerName;
+                    break;
+                }
+            }
+            return viewModel;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ShopStorage.cs

@@ -0,0 +1,130 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using ComputersShopListImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        private readonly DataListSingleton _source;
+        public ShopStorage()
+        {
+            _source = DataListSingleton.GetInstance();
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            for (int i = 0; i < _source.Shops.Count; ++i)
+            {
+                if (_source.Shops[i].Id == model.Id)
+                {
+                    var element = _source.Shops[i];
+                    _source.Shops.RemoveAt(i);
+                    return element.GetViewModel;
+                }
+            }
+            return null;
+        }
+
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            foreach (var Shop in _source.Shops)
+            {
+                if ((!string.IsNullOrEmpty(model.ShopName) && Shop.ShopName == model.ShopName) || (model.Id.HasValue && Shop.Id == model.Id))
+                {
+                    return Shop.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            var result = new List<ShopViewModel>();
+
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return result;
+            }
+
+            foreach (var Shop in _source.Shops)
+            {
+                if (Shop.ShopName.Contains(model.ShopName))
+                {
+                    result.Add(Shop.GetViewModel);
+                }
+            }
+
+            return result;
+        }
+
+        public List<ShopViewModel> GetFullList()
+        {
+            var result = new List<ShopViewModel>();
+
+            foreach (var Shop in _source.Shops)
+            {
+                result.Add(Shop.GetViewModel);
+            }
+
+            return result;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            model.Id = 1;
+
+            foreach (var Shop in _source.Shops)
+            {
+                if (model.Id <= Shop.Id)
+                {
+                    model.Id = Shop.Id + 1;
+                }
+            }
+
+            var newShop = Shop.Create(model);
+
+            if (newShop == null)
+            {
+                return null;
+            }
+
+            _source.Shops.Add(newShop);
+
+            return newShop.GetViewModel;
+        }
+
+        public bool SellComputers(IComputerModel model, int quantity)
+        {
+            throw new NotImplementedException();
+        }
+
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            foreach (var Shop in _source.Shops)
+            {
+                if (Shop.Id == model.Id)
+                {
+                    Shop.Update(model);
+                    return Shop.GetViewModel;
+                }
+            }
+
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Component.cs

@@ -0,0 +1,46 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.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
+        };
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Computer.cs

@@ -0,0 +1,54 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+    public class Computer : IComputerModel
+    {
+        public int Id { get; private set; }
+        public string ComputerName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents
+        {
+            get;
+            private set;
+        } = new Dictionary<int, (IComponentModel, int)>();
+        public static Computer? Create(ComputerBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Computer()
+            {
+                Id = model.Id,
+                ComputerName = model.ComputerName,
+                Price = model.Price,
+                ComputerComponents = model.ComputerComponents
+            };
+        }
+        public void Update(ComputerBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComputerName = model.ComputerName;
+            Price = model.Price;
+            ComputerComponents = model.ComputerComponents;
+        }
+        public ComputerViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerName = ComputerName,
+            Price = Price,
+            ComputerComponents = ComputerComponents
+        };
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Order.cs

@@ -0,0 +1,69 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+
+        public int ComputerId { get; private set; }
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                ComputerId = model.ComputerId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerId = ComputerId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+    }
+}

ComputersShop/ComputersShopListImplement/Models/Shop.cs

@@ -0,0 +1,61 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopListImplement.Models
+{
+    public class Shop : IShopModel
+    {
+        public string ShopName { get; private set; } = string.Empty;
+        public string ShopAddress { get; private set; } = string.Empty;
+
+        public DateTime DateOpening { get; private set; }
+
+        public Dictionary<int, (IComputerModel, int)> Computers { get; private set; } = new();
+        public int Id { get; private set; }
+
+        public static Shop? Create(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                ShopAddress = model.ShopAddress,
+                DateOpening = model.DateOpening,
+                Computers = new()
+            };
+        }
+
+        public void Update(ShopBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            ShopAddress = model.ShopAddress;
+            DateOpening = model.DateOpening;
+            Computers = model.Computers;
+        }
+
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            ShopAddress = ShopAddress,
+            DateOpening = DateOpening,
+            Computers = Computers
+        };
+
+        public int Capacity => throw new NotImplementedException();
+    }
+}

ComputersShop/ComputersShopView/ComputersShopView.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="7.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
+    <PackageReference Include="NLog" Version="5.1.1" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.2.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopBusinessLogic\ComputersShopBusinessLogic.csproj" />
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopFileImplement\ComputersShopFileImplement.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopView/FormComponent.Designer.cs

@@ -0,0 +1,119 @@
+namespace ComputersShopView
+{
+	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()
+		{
+            this.labelName = new System.Windows.Forms.Label();
+            this.textBoxName = new System.Windows.Forms.TextBox();
+            this.textBoxCost = new System.Windows.Forms.TextBox();
+            this.labelCost = new System.Windows.Forms.Label();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // labelName
+            // 
+            this.labelName.AutoSize = true;
+            this.labelName.Location = new System.Drawing.Point(12, 9);
+            this.labelName.Name = "labelName";
+            this.labelName.Size = new System.Drawing.Size(62, 15);
+            this.labelName.TabIndex = 0;
+            this.labelName.Text = "Название:";
+            // 
+            // textBoxName
+            // 
+            this.textBoxName.Location = new System.Drawing.Point(80, 6);
+            this.textBoxName.Name = "textBoxName";
+            this.textBoxName.Size = new System.Drawing.Size(287, 23);
+            this.textBoxName.TabIndex = 1;
+            // 
+            // textBoxCost
+            // 
+            this.textBoxCost.Location = new System.Drawing.Point(80, 35);
+            this.textBoxCost.Name = "textBoxCost";
+            this.textBoxCost.Size = new System.Drawing.Size(136, 23);
+            this.textBoxCost.TabIndex = 3;
+            // 
+            // labelCost
+            // 
+            this.labelCost.AutoSize = true;
+            this.labelCost.Location = new System.Drawing.Point(12, 38);
+            this.labelCost.Name = "labelCost";
+            this.labelCost.Size = new System.Drawing.Size(38, 15);
+            this.labelCost.TabIndex = 2;
+            this.labelCost.Text = "Цена:";
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(211, 64);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(75, 23);
+            this.buttonSave.TabIndex = 4;
+            this.buttonSave.Text = "Сохранить";
+            this.buttonSave.UseVisualStyleBackColor = true;
+            this.buttonSave.Click += new System.EventHandler(this.ButtonSave_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Location = new System.Drawing.Point(292, 64);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+            this.buttonCancel.TabIndex = 5;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+            // 
+            // FormComponent
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(375, 96);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.textBoxCost);
+            this.Controls.Add(this.labelCost);
+            this.Controls.Add(this.textBoxName);
+            this.Controls.Add(this.labelName);
+            this.Name = "FormComponent";
+            this.Text = "Компонент";
+            this.Load += new System.EventHandler(this.FormComponent_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private Label labelName;
+		private TextBox textBoxName;
+		private TextBox textBoxCost;
+		private Label labelCost;
+		private Button buttonSave;
+		private Button buttonCancel;
+	}
+}

ComputersShop/ComputersShopView/FormComponent.cs

@@ -0,0 +1,95 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+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 ComputersShopView
+{
+	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("Получение компонента");
+					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, "Ошибка получения компонента");
+					MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+					MessageBoxIcon.Error);
+				}
+			}
+		}
+
+		private void ButtonSave_Click(object sender, EventArgs e)
+		{
+			if (string.IsNullOrEmpty(textBoxName.Text))
+			{
+				MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			_logger.LogInformation("Сохранение компонента");
+			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("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 компонента");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+
+		private void ButtonCancel_Click(object sender, EventArgs e)
+		{
+			DialogResult = DialogResult.Cancel;
+			Close();
+		}
+	}
+}

ComputersShop/ComputersShopView/FormComponent.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormComponents.Designer.cs

@@ -0,0 +1,114 @@
+namespace ComputersShopView
+{
+	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()
+		{
+			this.dataGridView = new System.Windows.Forms.DataGridView();
+			this.buttonAdd = new System.Windows.Forms.Button();
+			this.buttonUpd = new System.Windows.Forms.Button();
+			this.buttonDel = new System.Windows.Forms.Button();
+			this.buttonRef = new System.Windows.Forms.Button();
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+			this.SuspendLayout();
+			// 
+			// dataGridView
+			// 
+			this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+			this.dataGridView.Location = new System.Drawing.Point(12, 12);
+			this.dataGridView.Name = "dataGridView";
+			this.dataGridView.RowTemplate.Height = 25;
+			this.dataGridView.Size = new System.Drawing.Size(441, 426);
+			this.dataGridView.TabIndex = 0;
+			// 
+			// buttonAdd
+			// 
+			this.buttonAdd.Location = new System.Drawing.Point(459, 12);
+			this.buttonAdd.Name = "buttonAdd";
+			this.buttonAdd.Size = new System.Drawing.Size(147, 23);
+			this.buttonAdd.TabIndex = 1;
+			this.buttonAdd.Text = "Добавить";
+			this.buttonAdd.UseVisualStyleBackColor = true;
+			this.buttonAdd.Click += new System.EventHandler(this.ButtonAdd_Click);
+			// 
+			// buttonUpd
+			// 
+			this.buttonUpd.Location = new System.Drawing.Point(459, 50);
+			this.buttonUpd.Name = "buttonUpd";
+			this.buttonUpd.Size = new System.Drawing.Size(147, 23);
+			this.buttonUpd.TabIndex = 2;
+			this.buttonUpd.Text = "Изменить";
+			this.buttonUpd.UseVisualStyleBackColor = true;
+			this.buttonUpd.Click += new System.EventHandler(this.ButtonUpd_Click);
+			// 
+			// buttonDel
+			// 
+			this.buttonDel.Location = new System.Drawing.Point(459, 91);
+			this.buttonDel.Name = "buttonDel";
+			this.buttonDel.Size = new System.Drawing.Size(147, 23);
+			this.buttonDel.TabIndex = 3;
+			this.buttonDel.Text = "Удалить";
+			this.buttonDel.UseVisualStyleBackColor = true;
+			this.buttonDel.Click += new System.EventHandler(this.ButtonDel_Click);
+			// 
+			// buttonRef
+			// 
+			this.buttonRef.Location = new System.Drawing.Point(459, 134);
+			this.buttonRef.Name = "buttonRef";
+			this.buttonRef.Size = new System.Drawing.Size(147, 23);
+			this.buttonRef.TabIndex = 4;
+			this.buttonRef.Text = "Обновить";
+			this.buttonRef.UseVisualStyleBackColor = true;
+			this.buttonRef.Click += new System.EventHandler(this.ButtonRef_Click);
+			// 
+			// FormComponents
+			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+			this.ClientSize = new System.Drawing.Size(618, 450);
+			this.Controls.Add(this.buttonRef);
+			this.Controls.Add(this.buttonDel);
+			this.Controls.Add(this.buttonUpd);
+			this.Controls.Add(this.buttonAdd);
+			this.Controls.Add(this.dataGridView);
+			this.Name = "FormComponents";
+			this.Text = "Компоненты";
+			this.Load += new System.EventHandler(this.FormComponents_Load);
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+			this.ResumeLayout(false);
+
+		}
+
+		#endregion
+
+		private DataGridView dataGridView;
+		private Button buttonAdd;
+		private Button buttonUpd;
+		private Button buttonDel;
+		private Button buttonRef;
+	}
+}

ComputersShop/ComputersShopView/FormComponents.cs

@@ -0,0 +1,116 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using Microsoft.VisualBasic.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 ComputersShopView
+{
+	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();
+		}
+	}
+}

ComputersShop/ComputersShopView/FormComponents.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormComputer.Designer.cs

@@ -0,0 +1,234 @@
+namespace ComputersShopView
+{
+	partial class FormComputer
+	{
+		/// <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.label1 = new System.Windows.Forms.Label();
+			this.textBoxName = new System.Windows.Forms.TextBox();
+			this.textBoxPrice = new System.Windows.Forms.TextBox();
+			this.label2 = new System.Windows.Forms.Label();
+			this.groupBox1 = new System.Windows.Forms.GroupBox();
+			this.buttonRef = new System.Windows.Forms.Button();
+			this.buttonDel = new System.Windows.Forms.Button();
+			this.buttonUpd = new System.Windows.Forms.Button();
+			this.buttonAdd = new System.Windows.Forms.Button();
+			this.dataGridView = new System.Windows.Forms.DataGridView();
+			this.ColumnId = new System.Windows.Forms.DataGridViewTextBoxColumn();
+			this.ComponentColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
+			this.CountColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
+			this.buttonSave = new System.Windows.Forms.Button();
+			this.buttonCancel = new System.Windows.Forms.Button();
+			this.groupBox1.SuspendLayout();
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+			this.SuspendLayout();
+			// 
+			// label1
+			// 
+			this.label1.AutoSize = true;
+			this.label1.Location = new System.Drawing.Point(12, 12);
+			this.label1.Name = "label1";
+			this.label1.Size = new System.Drawing.Size(62, 15);
+			this.label1.TabIndex = 0;
+			this.label1.Text = "Название:";
+			// 
+			// textBoxName
+			// 
+			this.textBoxName.Location = new System.Drawing.Point(77, 9);
+			this.textBoxName.Name = "textBoxName";
+			this.textBoxName.Size = new System.Drawing.Size(261, 23);
+			this.textBoxName.TabIndex = 1;
+			// 
+			// textBoxPrice
+			// 
+			this.textBoxPrice.Location = new System.Drawing.Point(88, 38);
+			this.textBoxPrice.Name = "textBoxPrice";
+			this.textBoxPrice.ReadOnly = true;
+			this.textBoxPrice.Size = new System.Drawing.Size(159, 23);
+			this.textBoxPrice.TabIndex = 3;
+			// 
+			// label2
+			// 
+			this.label2.AutoSize = true;
+			this.label2.Location = new System.Drawing.Point(12, 41);
+			this.label2.Name = "label2";
+			this.label2.Size = new System.Drawing.Size(70, 15);
+			this.label2.TabIndex = 2;
+			this.label2.Text = "Стоимость:";
+			// 
+			// groupBox1
+			// 
+			this.groupBox1.Controls.Add(this.buttonRef);
+			this.groupBox1.Controls.Add(this.buttonDel);
+			this.groupBox1.Controls.Add(this.buttonUpd);
+			this.groupBox1.Controls.Add(this.buttonAdd);
+			this.groupBox1.Controls.Add(this.dataGridView);
+			this.groupBox1.Location = new System.Drawing.Point(12, 67);
+			this.groupBox1.Name = "groupBox1";
+			this.groupBox1.Size = new System.Drawing.Size(593, 335);
+			this.groupBox1.TabIndex = 4;
+			this.groupBox1.TabStop = false;
+			this.groupBox1.Text = "Компоненты";
+			// 
+			// buttonRef
+			// 
+			this.buttonRef.Location = new System.Drawing.Point(471, 163);
+			this.buttonRef.Name = "buttonRef";
+			this.buttonRef.Size = new System.Drawing.Size(75, 23);
+			this.buttonRef.TabIndex = 5;
+			this.buttonRef.Text = "Обновить";
+			this.buttonRef.UseVisualStyleBackColor = true;
+			this.buttonRef.Click += new System.EventHandler(this.ButtonRef_Click);
+			// 
+			// buttonDel
+			// 
+			this.buttonDel.Location = new System.Drawing.Point(471, 116);
+			this.buttonDel.Name = "buttonDel";
+			this.buttonDel.Size = new System.Drawing.Size(75, 23);
+			this.buttonDel.TabIndex = 3;
+			this.buttonDel.Text = "Удалить";
+			this.buttonDel.UseVisualStyleBackColor = true;
+			this.buttonDel.Click += new System.EventHandler(this.ButtonDel_Click);
+			// 
+			// buttonUpd
+			// 
+			this.buttonUpd.Location = new System.Drawing.Point(471, 67);
+			this.buttonUpd.Name = "buttonUpd";
+			this.buttonUpd.Size = new System.Drawing.Size(75, 23);
+			this.buttonUpd.TabIndex = 2;
+			this.buttonUpd.Text = "Изменить";
+			this.buttonUpd.UseVisualStyleBackColor = true;
+			this.buttonUpd.Click += new System.EventHandler(this.ButtonUpd_Click);
+			// 
+			// buttonAdd
+			// 
+			this.buttonAdd.Location = new System.Drawing.Point(471, 22);
+			this.buttonAdd.Name = "buttonAdd";
+			this.buttonAdd.Size = new System.Drawing.Size(75, 23);
+			this.buttonAdd.TabIndex = 1;
+			this.buttonAdd.Text = "Добавить";
+			this.buttonAdd.UseVisualStyleBackColor = true;
+			this.buttonAdd.Click += new System.EventHandler(this.ButtonAdd_Click);
+			// 
+			// dataGridView
+			// 
+			this.dataGridView.AllowUserToAddRows = false;
+			this.dataGridView.AllowUserToDeleteRows = false;
+			this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+			this.dataGridView.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
+            this.ColumnId,
+            this.ComponentColumn,
+            this.CountColumn});
+			this.dataGridView.Location = new System.Drawing.Point(6, 22);
+			this.dataGridView.Name = "dataGridView";
+			this.dataGridView.ReadOnly = true;
+			this.dataGridView.RowTemplate.Height = 25;
+			this.dataGridView.Size = new System.Drawing.Size(417, 307);
+			this.dataGridView.TabIndex = 0;
+			// 
+			// ColumnId
+			// 
+			this.ColumnId.HeaderText = "Column1";
+			this.ColumnId.Name = "ColumnId";
+			this.ColumnId.ReadOnly = true;
+			this.ColumnId.Visible = false;
+			// 
+			// ComponentColumn
+			// 
+			this.ComponentColumn.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
+			this.ComponentColumn.HeaderText = "Компонент";
+			this.ComponentColumn.Name = "ComponentColumn";
+			this.ComponentColumn.ReadOnly = true;
+			// 
+			// CountColumn
+			// 
+			this.CountColumn.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
+			this.CountColumn.HeaderText = "Количество";
+			this.CountColumn.Name = "CountColumn";
+			this.CountColumn.ReadOnly = true;
+			// 
+			// buttonSave
+			// 
+			this.buttonSave.Location = new System.Drawing.Point(449, 408);
+			this.buttonSave.Name = "buttonSave";
+			this.buttonSave.Size = new System.Drawing.Size(75, 23);
+			this.buttonSave.TabIndex = 5;
+			this.buttonSave.Text = "Сохранить";
+			this.buttonSave.UseVisualStyleBackColor = true;
+			this.buttonSave.Click += new System.EventHandler(this.ButtonSave_Click);
+			// 
+			// buttonCancel
+			// 
+			this.buttonCancel.Location = new System.Drawing.Point(530, 408);
+			this.buttonCancel.Name = "buttonCancel";
+			this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+			this.buttonCancel.TabIndex = 6;
+			this.buttonCancel.Text = "Отмена";
+			this.buttonCancel.UseVisualStyleBackColor = true;
+			this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+			// 
+			// FormComputer
+			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+			this.ClientSize = new System.Drawing.Size(621, 445);
+			this.Controls.Add(this.buttonCancel);
+			this.Controls.Add(this.buttonSave);
+			this.Controls.Add(this.groupBox1);
+			this.Controls.Add(this.textBoxPrice);
+			this.Controls.Add(this.label2);
+			this.Controls.Add(this.textBoxName);
+			this.Controls.Add(this.label1);
+			this.Name = "FormComputer";
+			this.Text = "Компьютер";
+			this.Load += new System.EventHandler(this.FormComputer_Load);
+			this.groupBox1.ResumeLayout(false);
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+			this.ResumeLayout(false);
+			this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private Label label1;
+		private TextBox textBoxName;
+		private TextBox textBoxPrice;
+		private Label label2;
+		private GroupBox groupBox1;
+		private Button buttonRef;
+		private Button buttonDel;
+		private Button buttonUpd;
+		private Button buttonAdd;
+		private DataGridView dataGridView;
+		private Button buttonSave;
+		private Button buttonCancel;
+		private DataGridViewTextBoxColumn ColumnId;
+		private DataGridViewTextBoxColumn ComponentColumn;
+		private DataGridViewTextBoxColumn CountColumn;
+	}
+}

ComputersShop/ComputersShopView/FormComputer.cs

@@ -0,0 +1,218 @@
+using ComputersShopDataModels.Models;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.BindingModels;
+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 ComputersShopView
+{
+	public partial class FormComputer : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IComputerLogic _logic;
+		private int? _id;
+		private Dictionary<int, (IComponentModel, int)> _computerComponents;
+		public int Id { set { _id = value; } }
+
+		public FormComputer(ILogger<FormComputer> logger, IComputerLogic logic)
+		{
+			InitializeComponent();
+			_logger = logger;
+			_logic = logic;
+			_computerComponents = new Dictionary<int, (IComponentModel, int)>();
+		}
+
+		private void FormComputer_Load(object sender, EventArgs e)
+		{
+			if (_id.HasValue)
+			{
+				_logger.LogInformation("Загрузка компьютера");
+				try
+				{
+					var view = _logic.ReadElement(new ComputerSearchModel
+					{
+						Id = _id.Value
+					});
+					if (view != null)
+					{
+						textBoxName.Text = view.ComputerName;
+						textBoxPrice.Text = view.Price.ToString();
+						_computerComponents = view.ComputerComponents ?? new Dictionary<int, (IComponentModel, int)>();
+						LoadData();
+					}
+				}
+				catch (Exception ex)
+				{
+					_logger.LogError(ex, "Ошибка загрузки компьютера");
+					MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+					MessageBoxIcon.Error);
+				}
+			}
+		}
+		private void LoadData()
+		{
+			_logger.LogInformation("Загрузка компонента компьютера");
+			try
+			{
+				if (_computerComponents != null)
+				{
+					dataGridView.Rows.Clear();
+					foreach (var pc in _computerComponents)
+					{
+						dataGridView.Rows.Add(new object[] { pc.Key, pc.Value.Item1.ComponentName, pc.Value.Item2 });
+					}
+					textBoxPrice.Text = CalcPrice().ToString();
+				}
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка загрузки компонента компьютера");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+		private void ButtonAdd_Click(object sender, EventArgs e)
+		{
+			var service = Program.ServiceProvider?.GetService(typeof(FormComputerComponent));
+			if (service is FormComputerComponent form)
+			{
+				if (form.ShowDialog() == DialogResult.OK)
+				{
+					if (form.ComponentModel == null)
+					{
+						return;
+					}
+					_logger.LogInformation("Добавление нового компонента: { ComponentName} - { Count}", form.ComponentModel.ComponentName, form.Count);
+					if (_computerComponents.ContainsKey(form.Id))
+					{
+						_computerComponents[form.Id] = (form.ComponentModel,
+					   form.Count);
+					}
+					else
+					{
+						_computerComponents.Add(form.Id, (form.ComponentModel,
+					   form.Count));
+					}
+					LoadData();
+				}
+			}
+		}
+		private void ButtonUpd_Click(object sender, EventArgs e)
+		{
+			if (dataGridView.SelectedRows.Count == 1)
+			{
+				var service = Program.ServiceProvider?.GetService(typeof(FormComputerComponent));
+				if (service is FormComputerComponent form)
+				{
+					int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value);
+					form.Id = id;
+					form.Count = _computerComponents[id].Item2;
+					if (form.ShowDialog() == DialogResult.OK)
+					{
+						if (form.ComponentModel == null)
+						{
+							return;
+						}
+						_logger.LogInformation("Изменение компонента: { ComponentName} - { Count}", form.ComponentModel.ComponentName, form.Count);
+						_computerComponents[form.Id] = (form.ComponentModel, form.Count);
+						LoadData();
+					}
+				}
+			}
+		}
+
+		private void ButtonDel_Click(object sender, EventArgs e)
+		{
+			if (dataGridView.SelectedRows.Count == 1)
+			{
+				if (MessageBox.Show("Удалить запись?", "Вопрос",
+			   MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+				{
+					try
+					{
+						_logger.LogInformation("Удаление компонента: { ComponentName} - { Count}", dataGridView.SelectedRows[0].Cells[1].Value);
+						_computerComponents?.Remove(Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value));
+					}
+					catch (Exception ex)
+					{
+						MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+					}
+					LoadData();
+				}
+			}
+		}
+
+		private void ButtonRef_Click(object sender, EventArgs e)
+		{
+			LoadData();
+		}
+
+		private void ButtonSave_Click(object sender, EventArgs e)
+		{
+			if (string.IsNullOrEmpty(textBoxName.Text))
+			{
+				MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			if (string.IsNullOrEmpty(textBoxPrice.Text))
+			{
+				MessageBox.Show("Заполните цену", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			if (_computerComponents == null || _computerComponents.Count == 0)
+			{
+				MessageBox.Show("Заполните компоненты", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			_logger.LogInformation("Сохранение компьютера");
+			try
+			{
+				var model = new ComputerBindingModel
+				{
+					Id = _id ?? 0,
+					ComputerName = textBoxName.Text,
+					Price = Convert.ToDouble(textBoxPrice.Text),
+					ComputerComponents = _computerComponents
+				};
+				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 компьютера");
+				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 _computerComponents)
+			{
+				price += ((elem.Value.Item1?.Cost ?? 0) * elem.Value.Item2);
+			}
+			return Math.Round(price * 1.1, 2);
+		}
+
+	}
+}

ComputersShop/ComputersShopView/FormComputer.resx

@@ -0,0 +1,69 @@
+<root>
+  <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="ComponentColumn.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>

ComputersShop/ComputersShopView/FormComputerComponent.Designer.cs

@@ -0,0 +1,119 @@
+namespace ComputersShopView
+{
+	partial class FormComputerComponent
+	{
+		/// <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.label1 = new System.Windows.Forms.Label();
+			this.comboBoxComponent = new System.Windows.Forms.ComboBox();
+			this.label2 = new System.Windows.Forms.Label();
+			this.textBoxCount = new System.Windows.Forms.TextBox();
+			this.buttonSave = new System.Windows.Forms.Button();
+			this.buttonCancel = new System.Windows.Forms.Button();
+			this.SuspendLayout();
+			// 
+			// label1
+			// 
+			this.label1.AutoSize = true;
+			this.label1.Location = new System.Drawing.Point(12, 12);
+			this.label1.Name = "label1";
+			this.label1.Size = new System.Drawing.Size(69, 15);
+			this.label1.TabIndex = 0;
+			this.label1.Text = "Компонент";
+			// 
+			// comboBoxComponent
+			// 
+			this.comboBoxComponent.FormattingEnabled = true;
+			this.comboBoxComponent.Location = new System.Drawing.Point(87, 9);
+			this.comboBoxComponent.Name = "comboBoxComponent";
+			this.comboBoxComponent.Size = new System.Drawing.Size(278, 23);
+			this.comboBoxComponent.TabIndex = 1;
+			// 
+			// label2
+			// 
+			this.label2.AutoSize = true;
+			this.label2.Location = new System.Drawing.Point(12, 41);
+			this.label2.Name = "label2";
+			this.label2.Size = new System.Drawing.Size(72, 15);
+			this.label2.TabIndex = 2;
+			this.label2.Text = "Количество";
+			// 
+			// textBoxCount
+			// 
+			this.textBoxCount.Location = new System.Drawing.Point(87, 38);
+			this.textBoxCount.Name = "textBoxCount";
+			this.textBoxCount.Size = new System.Drawing.Size(278, 23);
+			this.textBoxCount.TabIndex = 3;
+			// 
+			// buttonSave
+			// 
+			this.buttonSave.Location = new System.Drawing.Point(209, 67);
+			this.buttonSave.Name = "buttonSave";
+			this.buttonSave.Size = new System.Drawing.Size(75, 23);
+			this.buttonSave.TabIndex = 4;
+			this.buttonSave.Text = "Сохранить";
+			this.buttonSave.UseVisualStyleBackColor = true;
+			this.buttonSave.Click += new System.EventHandler(this.ButtonSave_Click);
+			// 
+			// buttonCancel
+			// 
+			this.buttonCancel.Location = new System.Drawing.Point(290, 67);
+			this.buttonCancel.Name = "buttonCancel";
+			this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+			this.buttonCancel.TabIndex = 5;
+			this.buttonCancel.Text = "Отмена";
+			this.buttonCancel.UseVisualStyleBackColor = true;
+			this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+			// 
+			// FormComputerComponent
+			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+			this.ClientSize = new System.Drawing.Size(383, 105);
+			this.Controls.Add(this.buttonCancel);
+			this.Controls.Add(this.buttonSave);
+			this.Controls.Add(this.textBoxCount);
+			this.Controls.Add(this.label2);
+			this.Controls.Add(this.comboBoxComponent);
+			this.Controls.Add(this.label1);
+			this.Name = "FormComputerComponent";
+			this.Text = "Компонент компьютера";
+			this.ResumeLayout(false);
+			this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private Label label1;
+		private ComboBox comboBoxComponent;
+		private Label label2;
+		private TextBox textBoxCount;
+		private Button buttonSave;
+		private Button buttonCancel;
+	}
+}

ComputersShop/ComputersShopView/FormComputerComponent.cs

@@ -0,0 +1,90 @@
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ComputersShopView
+{
+	public partial class FormComputerComponent : 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 FormComputerComponent(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();
+		}
+
+	}
+}

ComputersShop/ComputersShopView/FormComputerComponent.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormComputers.Designer.cs

@@ -0,0 +1,114 @@
+namespace ComputersShopView
+{
+	partial class FormComputers
+	{
+		/// <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.dataGridView = new System.Windows.Forms.DataGridView();
+			this.buttonRef = new System.Windows.Forms.Button();
+			this.buttonDel = new System.Windows.Forms.Button();
+			this.buttonUpd = new System.Windows.Forms.Button();
+			this.buttonAdd = new System.Windows.Forms.Button();
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+			this.SuspendLayout();
+			// 
+			// dataGridView
+			// 
+			this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+			this.dataGridView.Location = new System.Drawing.Point(12, 12);
+			this.dataGridView.Name = "dataGridView";
+			this.dataGridView.RowTemplate.Height = 25;
+			this.dataGridView.Size = new System.Drawing.Size(441, 426);
+			this.dataGridView.TabIndex = 1;
+			// 
+			// buttonRef
+			// 
+			this.buttonRef.Location = new System.Drawing.Point(459, 134);
+			this.buttonRef.Name = "buttonRef";
+			this.buttonRef.Size = new System.Drawing.Size(147, 23);
+			this.buttonRef.TabIndex = 8;
+			this.buttonRef.Text = "Обновить";
+			this.buttonRef.UseVisualStyleBackColor = true;
+			this.buttonRef.Click += new System.EventHandler(this.ButtonRef_Click);
+			// 
+			// buttonDel
+			// 
+			this.buttonDel.Location = new System.Drawing.Point(459, 91);
+			this.buttonDel.Name = "buttonDel";
+			this.buttonDel.Size = new System.Drawing.Size(147, 23);
+			this.buttonDel.TabIndex = 7;
+			this.buttonDel.Text = "Удалить";
+			this.buttonDel.UseVisualStyleBackColor = true;
+			this.buttonDel.Click += new System.EventHandler(this.ButtonDel_Click);
+			// 
+			// buttonUpd
+			// 
+			this.buttonUpd.Location = new System.Drawing.Point(459, 50);
+			this.buttonUpd.Name = "buttonUpd";
+			this.buttonUpd.Size = new System.Drawing.Size(147, 23);
+			this.buttonUpd.TabIndex = 6;
+			this.buttonUpd.Text = "Изменить";
+			this.buttonUpd.UseVisualStyleBackColor = true;
+			this.buttonUpd.Click += new System.EventHandler(this.ButtonUpd_Click);
+			// 
+			// buttonAdd
+			// 
+			this.buttonAdd.Location = new System.Drawing.Point(459, 12);
+			this.buttonAdd.Name = "buttonAdd";
+			this.buttonAdd.Size = new System.Drawing.Size(147, 23);
+			this.buttonAdd.TabIndex = 5;
+			this.buttonAdd.Text = "Добавить";
+			this.buttonAdd.UseVisualStyleBackColor = true;
+			this.buttonAdd.Click += new System.EventHandler(this.ButtonAdd_Click);
+			// 
+			// FormComputers
+			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+			this.ClientSize = new System.Drawing.Size(618, 450);
+			this.Controls.Add(this.buttonRef);
+			this.Controls.Add(this.buttonDel);
+			this.Controls.Add(this.buttonUpd);
+			this.Controls.Add(this.buttonAdd);
+			this.Controls.Add(this.dataGridView);
+			this.Name = "FormComputers";
+			this.Text = "Компьютеры";
+			this.Load += new System.EventHandler(this.FormComputers_Load);
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+			this.ResumeLayout(false);
+
+		}
+
+		#endregion
+
+		private DataGridView dataGridView;
+		private Button buttonRef;
+		private Button buttonDel;
+		private Button buttonUpd;
+		private Button buttonAdd;
+	}
+}

ComputersShop/ComputersShopView/FormComputers.cs

@@ -0,0 +1,115 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+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 ComputersShopView
+{
+	public partial class FormComputers : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IComputerLogic _logic;
+
+		public FormComputers(ILogger<FormComputers> logger, IComputerLogic logic)
+		{
+			InitializeComponent();
+			_logger = logger;
+			_logic = logic;
+		}
+
+		private void FormComputers_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["ComputerName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+					dataGridView.Columns["ComputerComponents"].Visible = false;
+				}
+				_logger.LogInformation("Загрузка компьютеров");
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка загрузки компьютеров");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+
+		private void ButtonAdd_Click(object sender, EventArgs e)
+		{
+			var service = Program.ServiceProvider?.GetService(typeof(FormComputer));
+			if (service is FormComputer 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(FormComputer));
+				if (service is FormComputer 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 компьютера");
+					try
+					{
+						if (!_logic.Delete(new ComputerBindingModel
+						{
+							Id = id
+						}))
+						{
+							throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+						}
+						LoadData();
+					}
+					catch (Exception ex)
+					{
+						_logger.LogError(ex, "Ошибка удаления компьютера");
+						MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+					}
+				}
+			}
+		}
+
+		private void ButtonRef_Click(object sender, EventArgs e)
+		{
+			LoadData();
+		}
+	}
+}

ComputersShop/ComputersShopView/FormComputers.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormCreateOrder.Designer.cs

@@ -0,0 +1,145 @@
+namespace ComputersShopView
+{
+	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()
+		{
+            this.labelComputer = new System.Windows.Forms.Label();
+            this.comboBoxComputer = new System.Windows.Forms.ComboBox();
+            this.labelCount = new System.Windows.Forms.Label();
+            this.textBoxCount = new System.Windows.Forms.TextBox();
+            this.textBoxSum = new System.Windows.Forms.TextBox();
+            this.labelSum = new System.Windows.Forms.Label();
+            this.button1 = new System.Windows.Forms.Button();
+            this.button2 = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // labelComputer
+            // 
+            this.labelComputer.AutoSize = true;
+            this.labelComputer.Location = new System.Drawing.Point(12, 15);
+            this.labelComputer.Name = "labelComputer";
+            this.labelComputer.Size = new System.Drawing.Size(74, 15);
+            this.labelComputer.TabIndex = 0;
+            this.labelComputer.Text = "Компьютер:";
+            // 
+            // comboBoxComputer
+            // 
+            this.comboBoxComputer.FormattingEnabled = true;
+            this.comboBoxComputer.Location = new System.Drawing.Point(92, 12);
+            this.comboBoxComputer.Name = "comboBoxComputer";
+            this.comboBoxComputer.Size = new System.Drawing.Size(251, 23);
+            this.comboBoxComputer.TabIndex = 1;
+            this.comboBoxComputer.SelectedIndexChanged += new System.EventHandler(this.comboBoxComputer_SelectedIndexChanged);
+            // 
+            // labelCount
+            // 
+            this.labelCount.AutoSize = true;
+            this.labelCount.Location = new System.Drawing.Point(12, 44);
+            this.labelCount.Name = "labelCount";
+            this.labelCount.Size = new System.Drawing.Size(75, 15);
+            this.labelCount.TabIndex = 2;
+            this.labelCount.Text = "Количество:";
+            // 
+            // textBoxCount
+            // 
+            this.textBoxCount.Location = new System.Drawing.Point(92, 41);
+            this.textBoxCount.Name = "textBoxCount";
+            this.textBoxCount.Size = new System.Drawing.Size(251, 23);
+            this.textBoxCount.TabIndex = 3;
+            this.textBoxCount.TextChanged += new System.EventHandler(this.TextBoxCount_TextChanged);
+            // 
+            // textBoxSum
+            // 
+            this.textBoxSum.Location = new System.Drawing.Point(92, 70);
+            this.textBoxSum.Name = "textBoxSum";
+            this.textBoxSum.ReadOnly = true;
+            this.textBoxSum.Size = new System.Drawing.Size(251, 23);
+            this.textBoxSum.TabIndex = 5;
+            // 
+            // labelSum
+            // 
+            this.labelSum.AutoSize = true;
+            this.labelSum.Location = new System.Drawing.Point(12, 73);
+            this.labelSum.Name = "labelSum";
+            this.labelSum.Size = new System.Drawing.Size(48, 15);
+            this.labelSum.TabIndex = 4;
+            this.labelSum.Text = "Сумма:";
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(187, 99);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(75, 23);
+            this.button1.TabIndex = 6;
+            this.button1.Text = "Сохранить";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.ButtonSave_Click);
+            // 
+            // button2
+            // 
+            this.button2.Location = new System.Drawing.Point(268, 99);
+            this.button2.Name = "button2";
+            this.button2.Size = new System.Drawing.Size(75, 23);
+            this.button2.TabIndex = 7;
+            this.button2.Text = "Отмена";
+            this.button2.UseVisualStyleBackColor = true;
+            this.button2.Click += new System.EventHandler(this.ButtonCancel_Click);
+            // 
+            // FormCreateOrder
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(357, 130);
+            this.Controls.Add(this.button2);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.textBoxSum);
+            this.Controls.Add(this.labelSum);
+            this.Controls.Add(this.textBoxCount);
+            this.Controls.Add(this.labelCount);
+            this.Controls.Add(this.comboBoxComputer);
+            this.Controls.Add(this.labelComputer);
+            this.Name = "FormCreateOrder";
+            this.Text = "Заказ";
+            this.Load += new System.EventHandler(this.FormCreateOrder_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private Label labelComputer;
+		private ComboBox comboBoxComputer;
+		private Label labelCount;
+		private TextBox textBoxCount;
+		private TextBox textBoxSum;
+		private Label labelSum;
+		private Button button1;
+		private Button button2;
+	}
+}

ComputersShop/ComputersShopView/FormCreateOrder.cs

@@ -0,0 +1,127 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+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 ComputersShopView
+{
+	public partial class FormCreateOrder : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IComputerLogic _logicC;
+		private readonly IOrderLogic _logicO;
+
+		public FormCreateOrder(ILogger<FormCreateOrder> logger, IComputerLogic logicC, IOrderLogic logicO)
+		{
+			InitializeComponent();
+			_logger = logger;
+			_logicC = logicC;
+			_logicO = logicO;
+		}
+
+		private void FormCreateOrder_Load(object sender, EventArgs e)
+		{
+			_logger.LogInformation("Загрузка компьютеров для заказа");
+
+			try
+			{
+				var list = _logicC.ReadList(null);
+				if (list != null)
+				{
+					comboBoxComputer.DisplayMember = "ComputerName";
+					comboBoxComputer.ValueMember = "Id";
+					comboBoxComputer.DataSource = list;
+					comboBoxComputer.SelectedItem = null;
+				}
+
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка загрузки списка компьютеров");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+
+		private void CalcSum()
+		{
+			if (comboBoxComputer.SelectedValue != null && !string.IsNullOrEmpty(textBoxCount.Text))
+			{
+				try
+				{
+					int id = Convert.ToInt32(comboBoxComputer.SelectedValue);
+					var Computer = _logicC.ReadElement(new ComputerSearchModel
+					{
+						Id = id
+					});
+					int count = Convert.ToInt32(textBoxCount.Text);
+					textBoxSum.Text = Math.Round(count * (Computer?.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 comboBoxComputer_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 (comboBoxComputer.SelectedValue == null)
+			{
+				MessageBox.Show("Выберите компьютер", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+			_logger.LogInformation("Создание заказа");
+			try
+			{
+				var operationResult = _logicO.CreateOrder(new OrderBindingModel
+				{
+					ComputerId = Convert.ToInt32(comboBoxComputer.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();
+		}
+
+	}
+}

ComputersShop/ComputersShopView/FormCreateOrder.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormMain.Designer.cs

@@ -0,0 +1,204 @@
+namespace ComputersShopView
+{
+    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()
+        {
+            this.menuStrip = new System.Windows.Forms.MenuStrip();
+            this.справочникToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.computerToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.componentsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.магазиныToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.пополнениеМагазинаToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.продатьКомпьютеромToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.dataGridView = new System.Windows.Forms.DataGridView();
+            this.buttonCreateOrder = new System.Windows.Forms.Button();
+            this.buttonTakeOrderInWork = new System.Windows.Forms.Button();
+            this.buttonOrderReady = new System.Windows.Forms.Button();
+            this.buttonIssuedOrder = new System.Windows.Forms.Button();
+            this.buttonRef = new System.Windows.Forms.Button();
+            this.menuStrip.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // menuStrip
+            // 
+            this.menuStrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.справочникToolStripMenuItem,
+            this.пополнениеМагазинаToolStripMenuItem,
+            this.продатьКомпьютеромToolStripMenuItem});
+            this.menuStrip.Location = new System.Drawing.Point(0, 0);
+            this.menuStrip.Name = "menuStrip";
+            this.menuStrip.Size = new System.Drawing.Size(1047, 24);
+            this.menuStrip.TabIndex = 0;
+            this.menuStrip.Text = "menuStrip1";
+            // 
+            // справочникToolStripMenuItem
+            // 
+            this.справочникToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.computerToolStripMenuItem,
+            this.componentsToolStripMenuItem,
+            this.магазиныToolStripMenuItem});
+            this.справочникToolStripMenuItem.Name = "справочникToolStripMenuItem";
+            this.справочникToolStripMenuItem.Size = new System.Drawing.Size(94, 20);
+            this.справочникToolStripMenuItem.Text = "Справочники";
+            // 
+            // computerToolStripMenuItem
+            // 
+            this.computerToolStripMenuItem.Name = "computerToolStripMenuItem";
+            this.computerToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.computerToolStripMenuItem.Text = "Компьютеры";
+            this.computerToolStripMenuItem.Click += ComputersToolStripMenuItem_Click;
+            // 
+            // componentsToolStripMenuItem
+            // 
+            this.componentsToolStripMenuItem.Name = "componentsToolStripMenuItem";
+            this.componentsToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.componentsToolStripMenuItem.Text = "Компоненты";
+            this.componentsToolStripMenuItem.Click += ComponentsToolStripMenuItem_Click;
+            // 
+            // магазиныToolStripMenuItem
+            // 
+            this.магазиныToolStripMenuItem.Name = "магазиныToolStripMenuItem";
+            this.магазиныToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.магазиныToolStripMenuItem.Text = "Магазины";
+            this.магазиныToolStripMenuItem.Click += ShopToolStripMenuItem_Click;
+            // 
+            // пополнениеМагазинаToolStripMenuItem
+            // 
+            this.пополнениеМагазинаToolStripMenuItem.Name = "пополнениеМагазинаToolStripMenuItem";
+            this.пополнениеМагазинаToolStripMenuItem.Size = new System.Drawing.Size(143, 20);
+            this.пополнениеМагазинаToolStripMenuItem.Text = "Пополнение магазина";
+            this.пополнениеМагазинаToolStripMenuItem.Click += shopReplenishmentToolStripMenuItem_Click;
+            // 
+            // продатьКомпьютеромToolStripMenuItem
+            // 
+            this.продатьКомпьютеромToolStripMenuItem.Name = "продатьКомпьютеромToolStripMenuItem";
+            this.продатьКомпьютеромToolStripMenuItem.Size = new System.Drawing.Size(131, 20);
+            this.продатьКомпьютеромToolStripMenuItem.Text = "Продать компьютер";
+            this.продатьКомпьютеромToolStripMenuItem.Click += ButtonSellComputer_Click;
+            // 
+            // dataGridView
+            // 
+            this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView.Location = new System.Drawing.Point(12, 27);
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowTemplate.Height = 25;
+            this.dataGridView.Size = new System.Drawing.Size(817, 411);
+            this.dataGridView.TabIndex = 1;
+            // 
+            // buttonCreateOrder
+            // 
+            this.buttonCreateOrder.Location = new System.Drawing.Point(835, 50);
+            this.buttonCreateOrder.Name = "buttonCreateOrder";
+            this.buttonCreateOrder.Size = new System.Drawing.Size(200, 23);
+            this.buttonCreateOrder.TabIndex = 2;
+            this.buttonCreateOrder.Text = "Создать заказ";
+            this.buttonCreateOrder.UseVisualStyleBackColor = true;
+            this.buttonCreateOrder.Click += ButtonCreateOrder_Click;
+            // 
+            // buttonTakeOrderInWork
+            // 
+            this.buttonTakeOrderInWork.Location = new System.Drawing.Point(835, 101);
+            this.buttonTakeOrderInWork.Name = "buttonTakeOrderInWork";
+            this.buttonTakeOrderInWork.Size = new System.Drawing.Size(200, 23);
+            this.buttonTakeOrderInWork.TabIndex = 3;
+            this.buttonTakeOrderInWork.Text = "Отдать на выполнение";
+            this.buttonTakeOrderInWork.UseVisualStyleBackColor = true;
+            this.buttonTakeOrderInWork.Click += ButtonTakeOrderInWork_Click;
+            // 
+            // buttonOrderReady
+            // 
+            this.buttonOrderReady.Location = new System.Drawing.Point(835, 156);
+            this.buttonOrderReady.Name = "buttonOrderReady";
+            this.buttonOrderReady.Size = new System.Drawing.Size(200, 23);
+            this.buttonOrderReady.TabIndex = 4;
+            this.buttonOrderReady.Text = "Заказ готов";
+            this.buttonOrderReady.UseVisualStyleBackColor = true;
+            this.buttonOrderReady.Click += ButtonOrderReady_Click;
+            // 
+            // buttonIssuedOrder
+            // 
+            this.buttonIssuedOrder.Location = new System.Drawing.Point(835, 212);
+            this.buttonIssuedOrder.Name = "buttonIssuedOrder";
+            this.buttonIssuedOrder.Size = new System.Drawing.Size(200, 23);
+            this.buttonIssuedOrder.TabIndex = 5;
+            this.buttonIssuedOrder.Text = "Заказ выдан";
+            this.buttonIssuedOrder.UseVisualStyleBackColor = true;
+            this.buttonIssuedOrder.Click += ButtonIssuedOrder_Click;
+            // 
+            // buttonRef
+            // 
+            this.buttonRef.Location = new System.Drawing.Point(835, 269);
+            this.buttonRef.Name = "buttonRef";
+            this.buttonRef.Size = new System.Drawing.Size(200, 23);
+            this.buttonRef.TabIndex = 6;
+            this.buttonRef.Text = "Обновить список";
+            this.buttonRef.UseVisualStyleBackColor = true;
+            this.buttonRef.Click += ButtonRef_Click;
+            // 
+            // FormMain
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(1047, 450);
+            this.Controls.Add(this.buttonRef);
+            this.Controls.Add(this.buttonIssuedOrder);
+            this.Controls.Add(this.buttonOrderReady);
+            this.Controls.Add(this.buttonTakeOrderInWork);
+            this.Controls.Add(this.buttonCreateOrder);
+            this.Controls.Add(this.dataGridView);
+            this.Controls.Add(this.menuStrip);
+            this.MainMenuStrip = this.menuStrip;
+            this.Name = "FormMain";
+            this.Text = "Магазин электроники";
+            Load += FormMain_Load;
+            this.menuStrip.ResumeLayout(false);
+            this.menuStrip.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem справочникToolStripMenuItem;
+        private DataGridView dataGridView;
+        private Button buttonCreateOrder;
+        private Button buttonTakeOrderInWork;
+        private Button buttonOrderReady;
+        private Button buttonIssuedOrder;
+        private Button buttonRef;
+        private ToolStripMenuItem computerToolStripMenuItem;
+        private ToolStripMenuItem componentsToolStripMenuItem;
+        private ToolStripMenuItem магазиныToolStripMenuItem;
+        private ToolStripMenuItem пополнениеМагазинаToolStripMenuItem;
+        private ToolStripMenuItem продатьКомпьютеромToolStripMenuItem;
+    }
+}

ComputersShop/ComputersShopView/FormMain.cs

@@ -0,0 +1,202 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopDataModels.Enums;
+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 ComputersShopView
+{
+    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["ComputerId"].Visible = false;
+                }
+                _logger.LogInformation("Загрузка заказов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки заказов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void ComponentsToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComponents));
+            if (service is FormComponents form)
+            {
+                form.ShowDialog();
+            }
+        }
+        private void ComputersToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormComputers));
+            if (service is FormComputers form)
+            {
+                form.ShowDialog();
+            }
+        }
+        private void ShopToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormShops));
+
+            if (service is FormShops form)
+            {
+                form.ShowDialog();
+            }
+        }
+        private void ButtonCreateOrder_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormCreateOrder));
+            if (service is FormCreateOrder form)
+            {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+        private void ButtonTakeOrderInWork_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                _logger.LogInformation("Заказ №{id}. Меняется статус на 'В работе'", id);
+                try
+                {
+                    var operationResult = _orderLogic.TakeOrderInWork(new OrderBindingModel
+                    {
+                        Id = id,
+                        ComputerId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ComputerId"].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())
+                    });
+                    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(new OrderBindingModel
+                    {
+                        Id = id,
+                        ComputerId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ComputerId"].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())
+                    });
+                    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(new OrderBindingModel
+                    {
+                        Id = id,
+                        ComputerId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["ComputerId"].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())
+                    });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    _logger.LogInformation("Заказ №{id} выдан", id);
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка отметки о выдачи заказа");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void ButtonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void shopReplenishmentToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormShopReplenishment));
+
+            if (service is FormShopReplenishment form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void ButtonSellComputer_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSellComputers));
+            if (service is FormSellComputers form)
+            {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+    }
+}

ComputersShop/ComputersShopView/FormMain.resx

@@ -0,0 +1,63 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormSellComputers.Designer.cs

@@ -0,0 +1,124 @@
+namespace ComputersShopView
+{
+    partial class FormSellComputers
+    {
+        /// <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()
+        {
+            ButtonCancel = new Button();
+            comboBoxDocuments = new ComboBox();
+            numericUpDownCount = new NumericUpDown();
+            labelDocument = new Label();
+            labelCount = new Label();
+            ButtonSave = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCount).BeginInit();
+            SuspendLayout();
+            // 
+            // ButtonCancel
+            // 
+            ButtonCancel.Location = new Point(233, 60);
+            ButtonCancel.Margin = new Padding(3, 2, 3, 2);
+            ButtonCancel.Name = "ButtonCancel";
+            ButtonCancel.Size = new Size(82, 22);
+            ButtonCancel.TabIndex = 1;
+            ButtonCancel.Text = "Отмена";
+            ButtonCancel.UseVisualStyleBackColor = true;
+            ButtonCancel.Click += ButtonCancel_Click;
+            // 
+            // comboBoxDocuments
+            // 
+            comboBoxDocuments.FormattingEnabled = true;
+            comboBoxDocuments.Location = new Point(89, 6);
+            comboBoxDocuments.Margin = new Padding(3, 2, 3, 2);
+            comboBoxDocuments.Name = "comboBoxDocuments";
+            comboBoxDocuments.Size = new Size(226, 23);
+            comboBoxDocuments.TabIndex = 2;
+            // 
+            // numericUpDownCount
+            // 
+            numericUpDownCount.Location = new Point(90, 33);
+            numericUpDownCount.Margin = new Padding(3, 2, 3, 2);
+            numericUpDownCount.Name = "numericUpDownCount";
+            numericUpDownCount.Size = new Size(225, 23);
+            numericUpDownCount.TabIndex = 3;
+            // 
+            // labelDocument
+            // 
+            labelDocument.AutoSize = true;
+            labelDocument.Location = new Point(12, 9);
+            labelDocument.Name = "labelDocument";
+            labelDocument.Size = new Size(71, 15);
+            labelDocument.TabIndex = 4;
+            labelDocument.Text = "Компьютер";
+            // 
+            // labelCount
+            // 
+            labelCount.AutoSize = true;
+            labelCount.Location = new Point(11, 35);
+            labelCount.Name = "labelCount";
+            labelCount.Size = new Size(72, 15);
+            labelCount.TabIndex = 5;
+            labelCount.Text = "Количество";
+            // 
+            // ButtonSave
+            // 
+            ButtonSave.Location = new Point(145, 60);
+            ButtonSave.Margin = new Padding(3, 2, 3, 2);
+            ButtonSave.Name = "ButtonSave";
+            ButtonSave.Size = new Size(82, 22);
+            ButtonSave.TabIndex = 6;
+            ButtonSave.Text = "Сохранить";
+            ButtonSave.UseVisualStyleBackColor = true;
+            ButtonSave.Click += ButtonSave_Click;
+            // 
+            // FormSellComputers
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(326, 93);
+            Controls.Add(ButtonSave);
+            Controls.Add(labelCount);
+            Controls.Add(labelDocument);
+            Controls.Add(numericUpDownCount);
+            Controls.Add(comboBoxDocuments);
+            Controls.Add(ButtonCancel);
+            Margin = new Padding(3, 2, 3, 2);
+            Name = "FormSellComputers";
+            Text = "Продажа компьютеров";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCount).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+        private Button ButtonCancel;
+        private ComboBox comboBoxDocuments;
+        private NumericUpDown numericUpDownCount;
+        private Label labelDocument;
+        private Label labelCount;
+        private Button ButtonSave;
+    }
+}

ComputersShop/ComputersShopView/FormSellComputers.cs

@@ -0,0 +1,86 @@
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.ViewModels;
+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 ComputersShopView
+{
+    public partial class FormSellComputers : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IShopLogic _shopLogic;
+        private readonly IComputerLogic _computerLogic;
+        private readonly List<ComputerViewModel>? _listComputer;
+        public FormSellComputers(ILogger<FormSellComputers> logger, IShopLogic shopLogic, IComputerLogic computerLogic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _shopLogic = shopLogic;
+            _computerLogic = computerLogic;
+            _listComputer = computerLogic.ReadList(null);
+            if (_listComputer != null)
+            {
+                comboBoxDocuments.DisplayMember = "ComputerName";
+                comboBoxDocuments.ValueMember = "Id";
+                comboBoxDocuments.DataSource = _listComputer;
+                comboBoxDocuments.SelectedItem = null;
+            }
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (comboBoxDocuments.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите компьютер", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(numericUpDownCount.Text))
+            {
+                MessageBox.Show("Заполните количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Продажа поездок");
+            try
+            {
+                var comp = _computerLogic.ReadElement(new()
+                {
+                    Id = (int)comboBoxDocuments.SelectedValue
+                });
+                if (comp == null)
+                {
+                    throw new Exception("Компьютер не найден. Дополнительная информация в логах.");
+                }
+                var operationResult = _shopLogic.SellComputers(
+                    computer: comp,
+                    quantity: (int)numericUpDownCount.Value
+                );
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при продаже компьютера. 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 компьютера");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShopView/FormSellComputers.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormShop.Designer.cs

@@ -0,0 +1,222 @@
+namespace ComputersShopView
+{
+    partial class FormShop
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelShop = new Label();
+            labelAddress = new Label();
+            labelDate = new Label();
+            textBoxName = new TextBox();
+            textBoxAddress = new TextBox();
+            dateTimePicker = new DateTimePicker();
+            dataGridView = new DataGridView();
+            ButtonSave = new Button();
+            ButtonCancel = new Button();
+            numericUpDownCapacity = new NumericUpDown();
+            labelCapacity = new Label();
+            ID = new DataGridViewTextBoxColumn();
+            DocumentName = new DataGridViewTextBoxColumn();
+            Price = new DataGridViewTextBoxColumn();
+            Count = new DataGridViewTextBoxColumn();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCapacity).BeginInit();
+            SuspendLayout();
+            // 
+            // labelShop
+            // 
+            labelShop.AutoSize = true;
+            labelShop.Location = new Point(10, 16);
+            labelShop.Name = "labelShop";
+            labelShop.Size = new Size(54, 15);
+            labelShop.TabIndex = 0;
+            labelShop.Text = "Магазин";
+            // 
+            // labelAddress
+            // 
+            labelAddress.AutoSize = true;
+            labelAddress.Location = new Point(156, 16);
+            labelAddress.Name = "labelAddress";
+            labelAddress.Size = new Size(40, 15);
+            labelAddress.TabIndex = 1;
+            labelAddress.Text = "Адрес";
+            // 
+            // labelDate
+            // 
+            labelDate.AutoSize = true;
+            labelDate.Location = new Point(375, 16);
+            labelDate.Name = "labelDate";
+            labelDate.Size = new Size(87, 15);
+            labelDate.TabIndex = 2;
+            labelDate.Text = "Дата открытия";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(10, 33);
+            textBoxName.Margin = new Padding(3, 2, 3, 2);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(140, 23);
+            textBoxName.TabIndex = 3;
+            // 
+            // textBoxAddress
+            // 
+            textBoxAddress.Location = new Point(156, 33);
+            textBoxAddress.Margin = new Padding(3, 2, 3, 2);
+            textBoxAddress.Name = "textBoxAddress";
+            textBoxAddress.Size = new Size(216, 23);
+            textBoxAddress.TabIndex = 4;
+            // 
+            // dateTimePicker
+            // 
+            dateTimePicker.Location = new Point(375, 33);
+            dateTimePicker.Margin = new Padding(3, 2, 3, 2);
+            dateTimePicker.Name = "dateTimePicker";
+            dateTimePicker.Size = new Size(123, 23);
+            dateTimePicker.TabIndex = 5;
+            // 
+            // dataGridView
+            // 
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ID, DocumentName, Price, Count });
+            dataGridView.Location = new Point(10, 58);
+            dataGridView.Margin = new Padding(3, 2, 3, 2);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.RowTemplate.Height = 29;
+            dataGridView.Size = new Size(623, 248);
+            dataGridView.TabIndex = 6;
+            // 
+            // ButtonSave
+            // 
+            ButtonSave.Location = new Point(429, 310);
+            ButtonSave.Margin = new Padding(3, 2, 3, 2);
+            ButtonSave.Name = "ButtonSave";
+            ButtonSave.Size = new Size(97, 22);
+            ButtonSave.TabIndex = 7;
+            ButtonSave.Text = "Сохранить";
+            ButtonSave.UseVisualStyleBackColor = true;
+            ButtonSave.Click += ButtonSave_Click;
+            // 
+            // ButtonCancel
+            // 
+            ButtonCancel.Location = new Point(551, 310);
+            ButtonCancel.Margin = new Padding(3, 2, 3, 2);
+            ButtonCancel.Name = "ButtonCancel";
+            ButtonCancel.Size = new Size(82, 22);
+            ButtonCancel.TabIndex = 8;
+            ButtonCancel.Text = "Отмена";
+            ButtonCancel.UseVisualStyleBackColor = true;
+            ButtonCancel.Click += ButtonCancel_Click;
+            // 
+            // numericUpDownCapacity
+            // 
+            numericUpDownCapacity.Location = new Point(513, 33);
+            numericUpDownCapacity.Name = "numericUpDownCapacity";
+            numericUpDownCapacity.Size = new Size(120, 23);
+            numericUpDownCapacity.TabIndex = 9;
+            // 
+            // labelCapacity
+            // 
+            labelCapacity.AutoSize = true;
+            labelCapacity.Location = new Point(513, 16);
+            labelCapacity.Name = "labelCapacity";
+            labelCapacity.Size = new Size(80, 15);
+            labelCapacity.TabIndex = 10;
+            labelCapacity.Text = "Вместимость";
+            // 
+            // ID
+            // 
+            ID.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            ID.HeaderText = "ID";
+            ID.MinimumWidth = 6;
+            ID.Name = "ID";
+            ID.Visible = false;
+            // 
+            // DocumentName
+            // 
+            DocumentName.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            DocumentName.HeaderText = "Название компьютера";
+            DocumentName.MinimumWidth = 6;
+            DocumentName.Name = "DocumentName";
+            // 
+            // Price
+            // 
+            Price.HeaderText = "Стоимость";
+            Price.Name = "Price";
+            // 
+            // Count
+            // 
+            Count.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            Count.HeaderText = "Количество";
+            Count.MinimumWidth = 6;
+            Count.Name = "Count";
+            // 
+            // FormShop
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(648, 338);
+            Controls.Add(labelCapacity);
+            Controls.Add(numericUpDownCapacity);
+            Controls.Add(ButtonCancel);
+            Controls.Add(ButtonSave);
+            Controls.Add(dataGridView);
+            Controls.Add(dateTimePicker);
+            Controls.Add(textBoxAddress);
+            Controls.Add(textBoxName);
+            Controls.Add(labelDate);
+            Controls.Add(labelAddress);
+            Controls.Add(labelShop);
+            Margin = new Padding(3, 2, 3, 2);
+            Name = "FormShop";
+            Text = "Магазин";
+            Load += FormShop_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCapacity).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelShop;
+        private Label labelAddress;
+        private Label labelDate;
+        private TextBox textBoxName;
+        private TextBox textBoxAddress;
+        private DateTimePicker dateTimePicker;
+        private DataGridView dataGridView;
+        private Button ButtonSave;
+        private Button ButtonCancel;
+        private NumericUpDown numericUpDownCapacity;
+        private Label labelCapacity;
+        private DataGridViewTextBoxColumn ID;
+        private DataGridViewTextBoxColumn DocumentName;
+        private DataGridViewTextBoxColumn Price;
+        private DataGridViewTextBoxColumn Count;
+    }
+}

ComputersShop/ComputersShopView/FormShop.cs

@@ -0,0 +1,128 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+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 ComputersShopView
+{
+    public partial class FormShop : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IShopLogic _logic;
+        private int? _id;
+        private Dictionary<int, (IComputerModel, int)> _shopComputers;
+        public int Id { set { _id = value; } }
+        public FormShop(ILogger<FormShop> logger, IShopLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _shopComputers = new Dictionary<int, (IComputerModel, int)>();
+        }
+        private void FormShop_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка магазина");
+                try
+                {
+                    var view = _logic.ReadElement(new ShopSearchModel
+                    {
+                        Id = _id.Value
+                    });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.ShopName;
+                        textBoxAddress.Text = view.ShopAddress.ToString();
+                        dateTimePicker.Text = view.DateOpening.ToString();
+                        numericUpDownCapacity.Value = view.Capacity;
+                        _shopComputers = view.Computers ?? new Dictionary<int, (IComputerModel, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка загрузки магазина");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка компонент магазина");
+            try
+            {
+                if (_shopComputers != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var pc in _shopComputers)
+                    {
+                        dataGridView.Rows.Add(new object[] { pc.Key, pc.Value.Item1.ComputerName, pc.Value.Item1.Price, pc.Value.Item2 });
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки изделий магазина");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(textBoxAddress.Text))
+            {
+                MessageBox.Show("Заполните цену", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение магазина");
+            try
+            {
+                var model = new ShopBindingModel
+                {
+                    Id = _id ?? 0,
+                    ShopName = textBoxName.Text,
+                    ShopAddress = textBoxAddress.Text,
+                    DateOpening = dateTimePicker.Value.Date,
+                    Capacity = (int)numericUpDownCapacity.Value,
+                    Computers = _shopComputers
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка сохранения магазина");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

ComputersShop/ComputersShopView/FormShop.resx

@@ -0,0 +1,63 @@
+<root>
+  <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="Price.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

ComputersShop/ComputersShopView/FormShopReplenishment.Designer.cs

@@ -0,0 +1,142 @@
+namespace ComputersShopView
+{
+	partial class FormShopReplenishment
+	{
+		/// <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.ShopNameLabel = new System.Windows.Forms.Label();
+			this.ComputerNameLabel = new System.Windows.Forms.Label();
+			this.CountLabel = new System.Windows.Forms.Label();
+			this.сomboBoxShopName = new System.Windows.Forms.ComboBox();
+			this.comboBoxComputerName = new System.Windows.Forms.ComboBox();
+			this.CountTextBox = new System.Windows.Forms.TextBox();
+			this.buttonSave = new System.Windows.Forms.Button();
+			this.buttonCancel = new System.Windows.Forms.Button();
+			this.SuspendLayout();
+			// 
+			// ShopNameLabel
+			// 
+			this.ShopNameLabel.AutoSize = true;
+			this.ShopNameLabel.Location = new System.Drawing.Point(12, 9);
+			this.ShopNameLabel.Name = "ShopNameLabel";
+			this.ShopNameLabel.Size = new System.Drawing.Size(119, 15);
+			this.ShopNameLabel.TabIndex = 0;
+			this.ShopNameLabel.Text = "Название магазина: ";
+			// 
+			// ComputerNameLabel
+			// 
+			this.ComputerNameLabel.AutoSize = true;
+			this.ComputerNameLabel.Location = new System.Drawing.Point(12, 37);
+			this.ComputerNameLabel.Name = "ComputerNameLabel";
+			this.ComputerNameLabel.Size = new System.Drawing.Size(137, 15);
+			this.ComputerNameLabel.TabIndex = 1;
+			this.ComputerNameLabel.Text = "Название компьютера: ";
+			// 
+			// CountLabel
+			// 
+			this.CountLabel.AutoSize = true;
+			this.CountLabel.Location = new System.Drawing.Point(12, 66);
+			this.CountLabel.Name = "CountLabel";
+			this.CountLabel.Size = new System.Drawing.Size(78, 15);
+			this.CountLabel.TabIndex = 2;
+			this.CountLabel.Text = "Количество: ";
+			// 
+			// сomboBoxShopName
+			// 
+			this.сomboBoxShopName.FormattingEnabled = true;
+			this.сomboBoxShopName.Location = new System.Drawing.Point(155, 6);
+			this.сomboBoxShopName.Name = "сomboBoxShopName";
+			this.сomboBoxShopName.Size = new System.Drawing.Size(192, 23);
+			this.сomboBoxShopName.TabIndex = 3;
+			// 
+			// comboBoxComputerName
+			// 
+			this.comboBoxComputerName.FormattingEnabled = true;
+			this.comboBoxComputerName.Location = new System.Drawing.Point(155, 35);
+			this.comboBoxComputerName.Name = "comboBoxComputerName";
+			this.comboBoxComputerName.Size = new System.Drawing.Size(192, 23);
+			this.comboBoxComputerName.TabIndex = 4;
+			// 
+			// CountTextBox
+			// 
+			this.CountTextBox.Location = new System.Drawing.Point(155, 64);
+			this.CountTextBox.Name = "CountTextBox";
+			this.CountTextBox.Size = new System.Drawing.Size(192, 23);
+			this.CountTextBox.TabIndex = 5;
+			// 
+			// buttonSave
+			// 
+			this.buttonSave.Location = new System.Drawing.Point(191, 108);
+			this.buttonSave.Name = "buttonSave";
+			this.buttonSave.Size = new System.Drawing.Size(75, 23);
+			this.buttonSave.TabIndex = 6;
+			this.buttonSave.Text = "Сохранить";
+			this.buttonSave.UseVisualStyleBackColor = true;
+			this.buttonSave.Click += new System.EventHandler(this.ButtonSave_Click);
+			// 
+			// buttonCancel
+			// 
+			this.buttonCancel.Location = new System.Drawing.Point(272, 108);
+			this.buttonCancel.Name = "buttonCancel";
+			this.buttonCancel.Size = new System.Drawing.Size(75, 23);
+			this.buttonCancel.TabIndex = 7;
+			this.buttonCancel.Text = "Отмена";
+			this.buttonCancel.UseVisualStyleBackColor = true;
+			this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+			// 
+			// FormShopReplenishment
+			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+			this.ClientSize = new System.Drawing.Size(359, 150);
+			this.Controls.Add(this.buttonCancel);
+			this.Controls.Add(this.buttonSave);
+			this.Controls.Add(this.CountTextBox);
+			this.Controls.Add(this.comboBoxComputerName);
+			this.Controls.Add(this.сomboBoxShopName);
+			this.Controls.Add(this.CountLabel);
+			this.Controls.Add(this.ComputerNameLabel);
+			this.Controls.Add(this.ShopNameLabel);
+			this.Name = "FormShopReplenishment";
+			this.Text = "Пополнение магазина";
+			this.ResumeLayout(false);
+			this.PerformLayout();
+
+		}
+
+		#endregion
+
+		private Label ShopNameLabel;
+		private Label ComputerNameLabel;
+		private Label CountLabel;
+		private ComboBox сomboBoxShopName;
+		private ComboBox comboBoxComputerName;
+		private TextBox CountTextBox;
+		private Button buttonSave;
+		private Button buttonCancel;
+	}
+}

ComputersShop/ComputersShopView/FormShopReplenishment.cs

@@ -0,0 +1,104 @@
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.ViewModels;
+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 ComputersShopView
+{
+	public partial class FormShopReplenishment : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IShopLogic _shopLogic;
+		private readonly IComputerLogic _computerLogic;
+		private readonly List<ShopViewModel>? _listStores;
+		private readonly List<ComputerViewModel>? _listcomputers;
+		public FormShopReplenishment(ILogger<FormShopReplenishment> logger, IShopLogic shopLogic, IComputerLogic computerLogic)
+		{
+			InitializeComponent();
+			_shopLogic = shopLogic;
+			_computerLogic = computerLogic;
+			_logger = logger;
+			_listStores = shopLogic.ReadList(null);
+			if (_listStores != null)
+			{
+				сomboBoxShopName.DisplayMember = "ShopName";
+				сomboBoxShopName.ValueMember = "Id";
+				сomboBoxShopName.DataSource = _listStores;
+				сomboBoxShopName.SelectedItem = null;
+			}
+
+			_listcomputers = computerLogic.ReadList(null);
+			if (_listcomputers != null)
+			{
+				comboBoxComputerName.DisplayMember = "ComputerName";
+				comboBoxComputerName.ValueMember = "Id";
+				comboBoxComputerName.DataSource = _listcomputers;
+				comboBoxComputerName.SelectedItem = null;
+			}
+		}
+
+		private void ButtonSave_Click(object sender, EventArgs e)
+		{
+			if (сomboBoxShopName.SelectedValue == null)
+			{
+				MessageBox.Show("Выберите магазин", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+
+			if (comboBoxComputerName.SelectedValue == null)
+			{
+				MessageBox.Show("Выберите компьютер", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+				return;
+			}
+
+			_logger.LogInformation("Добавление компьютер в магазин");
+
+			try
+			{
+				var computer = _computerLogic.ReadElement(new()
+				{
+					Id = (int)comboBoxComputerName.SelectedValue
+				});
+
+				if (computer == null)
+				{
+					throw new Exception("Не найден компьютер. Дополнительная информация в логах.");
+				}
+
+				var resultOperation = _shopLogic.AddComputer(
+					 model: new() { Id = (int)сomboBoxShopName.SelectedValue },
+					computer: computer,
+					 quantity: Convert.ToInt32(CountTextBox.Text)
+				);
+
+				if (!resultOperation)
+				{
+					throw new Exception("Ошибка при добавлении. 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 компьютера");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+
+		private void ButtonCancel_Click(object sender, EventArgs e)
+		{
+			DialogResult = DialogResult.Cancel;
+			Close();
+		}
+	}
+}

ComputersShop/ComputersShopView/FormShopReplenishment.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/FormShops.Designer.cs

@@ -0,0 +1,114 @@
+namespace ComputersShopView
+{
+	partial class FormShops
+	{
+		/// <summary>
+		/// Required designer variable.
+		/// </summary>
+		private System.ComponentModel.IContainer components = null;
+
+		/// <summary>
+		/// Clean up any resources being used.
+		/// </summary>
+		/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing && (components != null))
+			{
+				components.Dispose();
+			}
+			base.Dispose(disposing);
+		}
+
+		#region Windows Form Designer generated code
+
+		/// <summary>
+		/// Required method for Designer support - do not modify
+		/// the contents of this method with the code editor.
+		/// </summary>
+		private void InitializeComponent()
+		{
+			this.dataGridView = new System.Windows.Forms.DataGridView();
+			this.buttonAdd = new System.Windows.Forms.Button();
+			this.buttonChange = new System.Windows.Forms.Button();
+			this.buttonDelete = new System.Windows.Forms.Button();
+			this.buttonUpdate = new System.Windows.Forms.Button();
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+			this.SuspendLayout();
+			// 
+			// dataGridView
+			// 
+			this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+			this.dataGridView.Location = new System.Drawing.Point(12, 12);
+			this.dataGridView.Name = "dataGridView";
+			this.dataGridView.RowTemplate.Height = 25;
+			this.dataGridView.Size = new System.Drawing.Size(539, 426);
+			this.dataGridView.TabIndex = 0;
+			// 
+			// buttonAdd
+			// 
+			this.buttonAdd.Location = new System.Drawing.Point(585, 12);
+			this.buttonAdd.Name = "buttonAdd";
+			this.buttonAdd.Size = new System.Drawing.Size(121, 40);
+			this.buttonAdd.TabIndex = 1;
+			this.buttonAdd.Text = "Добавить";
+			this.buttonAdd.UseVisualStyleBackColor = true;
+			this.buttonAdd.Click += new System.EventHandler(this.AddButton_Click);
+			// 
+			// buttonChange
+			// 
+			this.buttonChange.Location = new System.Drawing.Point(585, 67);
+			this.buttonChange.Name = "buttonChange";
+			this.buttonChange.Size = new System.Drawing.Size(121, 40);
+			this.buttonChange.TabIndex = 2;
+			this.buttonChange.Text = "Изменить";
+			this.buttonChange.UseVisualStyleBackColor = true;
+			this.buttonChange.Click += new System.EventHandler(this.ChangeButton_Click);
+			// 
+			// buttonDelete
+			// 
+			this.buttonDelete.Location = new System.Drawing.Point(585, 122);
+			this.buttonDelete.Name = "buttonDelete";
+			this.buttonDelete.Size = new System.Drawing.Size(121, 40);
+			this.buttonDelete.TabIndex = 3;
+			this.buttonDelete.Text = "Удалить";
+			this.buttonDelete.UseVisualStyleBackColor = true;
+			this.buttonDelete.Click += new System.EventHandler(this.DeleteButton_Click);
+			// 
+			// buttonUpdate
+			// 
+			this.buttonUpdate.Location = new System.Drawing.Point(585, 179);
+			this.buttonUpdate.Name = "buttonUpdate";
+			this.buttonUpdate.Size = new System.Drawing.Size(121, 40);
+			this.buttonUpdate.TabIndex = 4;
+			this.buttonUpdate.Text = "Обновить";
+			this.buttonUpdate.UseVisualStyleBackColor = true;
+			this.buttonUpdate.Click += new System.EventHandler(this.UpdateButton_Click);
+			// 
+			// FormShops
+			// 
+			this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
+			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+			this.ClientSize = new System.Drawing.Size(718, 450);
+			this.Controls.Add(this.buttonUpdate);
+			this.Controls.Add(this.buttonDelete);
+			this.Controls.Add(this.buttonChange);
+			this.Controls.Add(this.buttonAdd);
+			this.Controls.Add(this.dataGridView);
+			this.Name = "FormShops";
+			this.Text = "Магазины";
+			this.Load += new System.EventHandler(this.FormShops_Load);
+			((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+			this.ResumeLayout(false);
+
+		}
+
+		#endregion
+
+		private DataGridView dataGridView;
+		private Button buttonAdd;
+		private Button buttonChange;
+		private Button buttonDelete;
+		private Button buttonUpdate;
+	}
+}

ComputersShop/ComputersShopView/FormShops.cs

@@ -0,0 +1,122 @@
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicContracts;
+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 ComputersShopView
+{
+	public partial class FormShops : Form
+	{
+		private readonly ILogger _logger;
+		private readonly IShopLogic _logic;
+		public FormShops(ILogger<FormShops> logger, IShopLogic logic)
+		{
+			InitializeComponent();
+			_logger = logger;
+			_logic = logic;
+		}
+
+		private void FormShops_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["ShopName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+					dataGridView.Columns["Computers"].Visible = false;
+				}
+
+				_logger.LogInformation("Загрузка магазинов");
+
+			}
+			catch (Exception ex)
+			{
+				_logger.LogError(ex, "Ошибка загрузки магазинов");
+				MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+			}
+		}
+
+		private void UpdateButton_Click(object sender, EventArgs e)
+		{
+			LoadData();
+		}
+
+		private void DeleteButton_Click(object sender, EventArgs e)
+		{
+			if (dataGridView.SelectedRows.Count == 1)
+			{
+				if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+				{
+					int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+					_logger.LogInformation("Удаление магазина");
+
+					try
+					{
+						if (!_logic.Delete(new ShopBindingModel
+						{
+							Id = id
+						}))
+						{
+							throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+						}
+
+						LoadData();
+					}
+					catch (Exception ex)
+					{
+						_logger.LogError(ex, "Ошибка удаления изделия");
+						MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+					}
+				}
+			}
+		}
+
+		private void ChangeButton_Click(object sender, EventArgs e)
+		{
+			if (dataGridView.SelectedRows.Count == 1)
+			{
+				var service = Program.ServiceProvider?.GetService(typeof(FormShop));
+
+				if (service is FormShop form)
+				{
+					form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+					if (form.ShowDialog() == DialogResult.OK)
+					{
+						LoadData();
+					}
+				}
+			}
+		}
+
+		private void AddButton_Click(object sender, EventArgs e)
+		{
+			var service = Program.ServiceProvider?.GetService(typeof(FormShop));
+
+			if (service is FormShop form)
+			{
+				if (form.ShowDialog() == DialogResult.OK)
+				{
+					LoadData();
+				}
+			}
+		}
+	}
+}

ComputersShop/ComputersShopView/FormShops.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

ComputersShop/ComputersShopView/Program.cs

@@ -0,0 +1,61 @@
+using ComputersShopBusinessLogic.BusinessLogics;
+using ComputersShopContracts.BusinessLogicContracts;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopFileImplement.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+
+
+namespace ComputersShopView
+{
+    internal static class Program
+	{
+		private static ServiceProvider? _serviceProvider;
+		public static ServiceProvider? ServiceProvider => _serviceProvider;
+		/// <summary>
+		///  The main entry point for the application.
+		/// </summary>
+		[STAThread]
+		static void Main()
+		{
+			// To customize application configuration such as set high DPI settings or default font,
+			// see https://aka.ms/applicationconfiguration.
+			ApplicationConfiguration.Initialize();
+			var services = new ServiceCollection();
+			ConfigureServices(services);
+			_serviceProvider = services.BuildServiceProvider();
+			Application.Run(_serviceProvider.GetRequiredService<FormMain>());
+		}
+
+		private static void ConfigureServices(ServiceCollection services)
+		{
+			services.AddLogging(option =>
+			{
+				option.SetMinimumLevel(LogLevel.Information);
+				option.AddNLog("nlog.config");
+			});
+			services.AddTransient<IComponentStorage, ComponentStorage>();
+			services.AddTransient<IComputerStorage, ComputerStorage>();
+			services.AddTransient<IOrderStorage, OrderStorage>();
+			services.AddTransient<IShopStorage, ShopStorage>();
+
+			services.AddTransient<IComponentLogic, ComponentLogic>();
+			services.AddTransient<IComputerLogic, ComputerLogic>();
+			services.AddTransient<IOrderLogic, OrderLogic>();
+            services.AddTransient<IShopLogic, ShopLogic>();
+
+            services.AddTransient<FormMain>();
+			services.AddTransient<FormComponent>();
+			services.AddTransient<FormComponents>();
+			services.AddTransient<FormCreateOrder>();
+			services.AddTransient<FormComputer>();
+			services.AddTransient<FormComputers>();
+			services.AddTransient<FormComputerComponent>();
+            services.AddTransient<FormShop>();
+            services.AddTransient<FormShops>();
+            services.AddTransient<FormShopReplenishment>();
+            services.AddTransient<FormSellComputers>();
+        }
+	}
+}

ComputersShop/СomputersShopDataModels/Enums/OrderStatus.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels.Enums
+{
+    public enum OrderStatus
+    {
+        Неизвестен = -1,
+        Принят = 0,
+        Выполняется = 1,
+        Готов = 2,
+        Выдан = 3
+    }
+}

ComputersShop/СomputersShopDataModels/IId.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels
+{
+    public interface IId
+    {
+        int Id { get; }
+    }
+}

ComputersShop/СomputersShopDataModels/Models/IComponentModel.cs

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

ComputersShop/СomputersShopDataModels/Models/IComputerModel.cs

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

ComputersShop/СomputersShopDataModels/Models/IOrderModel.cs

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

ComputersShop/СomputersShopDataModels/Models/IShopModel.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDataModels.Models
+{
+    public interface IShopModel : IId
+    {
+        public string ShopName { get; }
+        public string ShopAddress { get; }
+        DateTime DateOpening { get; }
+        public int Capacity { get; }
+        Dictionary<int, (IComputerModel, int)> Computers { get; }
+    }
+}

ComputersShop/СomputersShopDataModels/СomputersShopDataModels.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+  </ItemGroup>
+
+</Project>