блин полина сказала сделать так

.gitignore

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

ComputersShop/ComputersShop.sln

@@ -3,7 +3,19 @@ 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}") = "ComputersShopView", "ComputersShopView\ComputersShopView.csproj", "{664326C7-7E5E-4086-BAC5-736449BDFBB9}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopView", "ComputersShopView\ComputersShopView.csproj", "{664326C7-7E5E-4086-BAC5-736449BDFBB9}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopDataModels", "ComputersShopDataModels\ComputersShopDataModels.csproj", "{C6455380-5492-471C-AD68-160DBB6F8FD4}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopContracts", "ComputersShopContracts\ComputersShopContracts.csproj", "{4583131C-49AC-4DC3-B8E0-B3ADF49FEA03}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopListImplement", "ComputersShopListImplement\ComputersShopListImplement.csproj", "{38DB323F-5C39-44A6-921C-BB1D0C330B5B}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopBusinessLogic", "ComputersShopBusinessLogic\ComputersShopBusinessLogic.csproj", "{E8E8A4F7-E499-48CB-B3FB-25DCF234DC7F}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ComputersShopFileImplement", "ComputersShopFileImplement\ComputersShopFileImplement.csproj", "{13634451-A24C-49E1-9558-E63566167957}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ComputersShopDatabaseImplement", "ComputersShopDatabaseImplement\ComputersShopDatabaseImplement.csproj", "{EC5789DC-656D-457F-B6A0-702CCE7EE688}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +27,30 @@ Global
 		{664326C7-7E5E-4086-BAC5-736449BDFBB9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{664326C7-7E5E-4086-BAC5-736449BDFBB9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{664326C7-7E5E-4086-BAC5-736449BDFBB9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C6455380-5492-471C-AD68-160DBB6F8FD4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C6455380-5492-471C-AD68-160DBB6F8FD4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C6455380-5492-471C-AD68-160DBB6F8FD4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C6455380-5492-471C-AD68-160DBB6F8FD4}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4583131C-49AC-4DC3-B8E0-B3ADF49FEA03}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4583131C-49AC-4DC3-B8E0-B3ADF49FEA03}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4583131C-49AC-4DC3-B8E0-B3ADF49FEA03}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4583131C-49AC-4DC3-B8E0-B3ADF49FEA03}.Release|Any CPU.Build.0 = Release|Any CPU
+		{38DB323F-5C39-44A6-921C-BB1D0C330B5B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{38DB323F-5C39-44A6-921C-BB1D0C330B5B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{38DB323F-5C39-44A6-921C-BB1D0C330B5B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{38DB323F-5C39-44A6-921C-BB1D0C330B5B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E8E8A4F7-E499-48CB-B3FB-25DCF234DC7F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E8E8A4F7-E499-48CB-B3FB-25DCF234DC7F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E8E8A4F7-E499-48CB-B3FB-25DCF234DC7F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E8E8A4F7-E499-48CB-B3FB-25DCF234DC7F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{13634451-A24C-49E1-9558-E63566167957}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{13634451-A24C-49E1-9558-E63566167957}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{13634451-A24C-49E1-9558-E63566167957}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{13634451-A24C-49E1-9558-E63566167957}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EC5789DC-656D-457F-B6A0-702CCE7EE688}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EC5789DC-656D-457F-B6A0-702CCE7EE688}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EC5789DC-656D-457F-B6A0-702CCE7EE688}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EC5789DC-656D-457F-B6A0-702CCE7EE688}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ComponentLogic.cs

@@ -0,0 +1,112 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+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.GetFiltredList(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 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 +1,112 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+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.GetFiltredList(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 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 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using Microsoft.Extensions.Logging;
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class OrderLogic : IOrderLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IOrderStorage _orderStorage;
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        {
+            _logger = logger;
+            _orderStorage = orderStorage;
+        }
+        public List<OrderViewModel>? ReadList(OrderSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+            var list = model == null ? _orderStorage.GetFullList() : _orderStorage.GetFiltredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+        public bool CreateOrder(OrderBindingModel model)
+        {
+            CheckModel(model);
+            if (model.Status != OrderStatus.Неизвестен)
+            {
+                _logger.LogWarning("Wrong order status. Insert operation failed");
+                return false;
+            }
+            model.Status = OrderStatus.Принят;
+            if (_orderStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool ChangeStatus(OrderBindingModel model, OrderStatus newStatus)
+        {
+            var viewModel = _orderStorage.GetElement(new OrderSearchModel { Id = model.Id });
+            if (viewModel == null)
+            {
+                throw new ArgumentNullException(nameof(viewModel));
+            }
+            if (viewModel.Status + 1 != newStatus)
+            {
+                _logger.LogWarning("Status change operation failed");
+                return false;
+            }
+
+            model.Status = newStatus;
+            model.ComputerId = viewModel.ComputerId;
+            model.Count = viewModel.Count;
+            model.Sum = viewModel.Sum;
+            model.DateCreate = viewModel.DateCreate;
+            if (model.Status == OrderStatus.Готов)
+            {
+                model.DateImplement = DateTime.Now;
+            }
+            else
+            {
+                model.DateImplement = viewModel.DateImplement;
+            }
+            CheckModel(model, false);
+            if (_orderStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Status change operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool TakeOrderInWork(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выполняется);
+        }
+        public bool FinishOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Готов);
+        }
+        public bool DeliveryOrder(OrderBindingModel model)
+        {
+            return ChangeStatus(model, OrderStatus.Выдан);
+        }
+        private void CheckModel(OrderBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Sum <= 0)
+            {
+                throw new ArgumentNullException("Цена должна быть больше 0", nameof(model.Sum));
+            }
+            if (model.Count <= 0)
+            {
+                throw new ArgumentNullException("Количество изделий должно быть больше 0", nameof(model.Count));
+            }
+            if (model.DateImplement != null && model.DateImplement < model.DateCreate)
+            {
+                throw new ArithmeticException("Дата завершения не может быть раньше даты начала");
+            }
+            _logger.LogInformation("Order. Id:{Id}. Sum:{Sum}. ComputerId:{ComputerId}", model.Id, model.Sum, model.ComputerId);
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/BusinessLogics/ReportLogic.cs

@@ -0,0 +1,114 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+
+
+namespace ComputersShopBusinessLogic.BusinessLogics
+{
+    public class ReportLogic : IReportLogic
+    {
+        private readonly IComputerStorage _computerStorage;
+
+        private readonly IOrderStorage _orderStorage;
+
+        private readonly AbstractSaveToExcel _saveToExcel;
+
+        private readonly AbstractSaveToWord _saveToWord;
+
+        private readonly AbstractSaveToPdf _saveToPdf;
+
+        public ReportLogic(IComputerStorage computerStorage, IComponentStorage componentStorage, IOrderStorage orderStorage,
+            AbstractSaveToExcel saveToExcel, AbstractSaveToWord saveToWord, AbstractSaveToPdf saveToPdf)
+        {
+            _computerStorage = computerStorage;
+            _orderStorage = orderStorage;
+
+            _saveToExcel = saveToExcel;
+            _saveToWord = saveToWord;
+            _saveToPdf = saveToPdf;
+        }
+
+        public List<ReportComputerComponentViewModel> GetComputerComponents()
+        {
+
+            var computers = _computerStorage.GetFullList();
+
+            var list = new List<ReportComputerComponentViewModel>();
+
+            foreach (var computer in computers)
+            {
+                var record = new ReportComputerComponentViewModel
+                {
+                    ComputerName = computer.ComputerName,
+                    Components = new List<(string Component, int Count)>(),
+                    TotalCount = 0,
+                };
+                foreach (var component in computer.ComputerComponents)
+                {
+                    record.Components.Add(new(component.Value.Item1.ComponentName, component.Value.Item2));
+                    record.TotalCount += component.Value.Item2;
+                }
+
+                list.Add(record);
+            }
+
+            return list;
+        }
+
+        public List<ReportOrdersViewModel> GetOrders(ReportBindingModel model)
+        {
+            return _orderStorage.GetFiltredList(new OrderSearchModel { DateFrom = model.DateFrom, DateTo = model.DateTo })
+                    .Select(x => new ReportOrdersViewModel
+                    {
+                        Id = x.Id,
+                        DateCreate = x.DateCreate,
+                        ComputerName = x.ComputerName,
+                        Status = x.Status.ToString(),
+                        Sum = x.Sum
+                    })
+                    .ToList();
+        }
+
+        public void SaveComputersToWordFile(ReportBindingModel model)
+        {
+            _saveToWord.CreateDoc(new WordInfo
+            {
+                FileName = model.FileName,
+                Title = "Список компонентов",
+                Computers = _computerStorage.GetFullList()
+            });
+        }
+
+        public void SaveComputerComponentToExcelFile(ReportBindingModel model)
+        {
+            _saveToExcel.CreateReport(new ExcelInfo
+            {
+                FileName = model.FileName,
+                Title = "Список компонентов",
+                ComputerComponents = GetComputerComponents()
+            });
+        }
+
+        public void SaveOrdersToPdfFile(ReportBindingModel model)
+        {
+            _saveToPdf.CreateDoc(new PdfInfo
+            {
+                FileName = model.FileName,
+                Title = "Список заказов",
+                DateFrom = model.DateFrom!.Value,
+                DateTo = model.DateTo!.Value,
+                Orders = GetOrders(model)
+            });
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/ComputersShopBusinessLogic.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="DocumentFormat.OpenXml" Version="3.0.2" />
+    <PackageReference Include="DocumentFormat.OpenXml.Framework" Version="3.0.2" />
+    <PackageReference Include="PdfSharp.MigraDoc.Standard" Version="1.51.15" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopBusinessLogic/OfficePackage/AbstractSaveToExcel.cs

@@ -0,0 +1,103 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+
+namespace ComputersShopBusinessLogic.OfficePackage
+{
+    public abstract class AbstractSaveToExcel
+    {
+        /// <summary>
+        /// Создание отчета
+        /// </summary>
+        /// <param name="info"></param>
+        public void CreateReport(ExcelInfo info)
+        {
+            CreateExcel(info);
+            InsertCellInWorksheet(new ExcelCellParameters
+            {
+                ColumnName = "A",
+                RowIndex = 1,
+                Text = info.Title,
+                StyleInfo = ExcelStyleInfoType.Title
+            });
+            MergeCells(new ExcelMergeParameters
+            {
+                CellFromName = "A1",
+                CellToName = "C1"
+            });
+            uint rowIndex = 2;
+            foreach (var pc in info.ComputerComponents)
+            {
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "A",
+                    RowIndex = rowIndex,
+                    Text = pc.ComputerName,
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+                rowIndex++;
+                foreach (var computer in pc.Components)
+                {
+                    InsertCellInWorksheet(new ExcelCellParameters
+                    {
+                        ColumnName = "B",
+                        RowIndex = rowIndex,
+                        Text = computer.Item1,
+                        StyleInfo =
+                    ExcelStyleInfoType.TextWithBroder
+                    });
+                    InsertCellInWorksheet(new ExcelCellParameters
+                    {
+                        ColumnName = "C",
+                        RowIndex = rowIndex,
+                        Text = computer.Item2.ToString(),
+                        StyleInfo =
+                    ExcelStyleInfoType.TextWithBroder
+                    });
+                    rowIndex++;
+                }
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "A",
+                    RowIndex = rowIndex,
+                    Text = "Итого",
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+                InsertCellInWorksheet(new ExcelCellParameters
+                {
+                    ColumnName = "C",
+                    RowIndex = rowIndex,
+                    Text = pc.TotalCount.ToString(),
+                    StyleInfo = ExcelStyleInfoType.Text
+                });
+                rowIndex++;
+            }
+            SaveExcel(info);
+        }
+        /// <summary>
+        /// Создание excel-файла
+        /// </summary>
+        /// <param name="info"></param>
+        protected abstract void CreateExcel(ExcelInfo info);
+        /// <summary>
+        /// Добавляем новую ячейку в лист
+        /// </summary>
+        /// <param name="cellParameters"></param>
+        protected abstract void InsertCellInWorksheet(ExcelCellParameters
+        excelParams);
+        /// <summary>
+        /// Объединение ячеек
+        /// </summary>
+        /// <param name="mergeParameters"></param>
+        protected abstract void MergeCells(ExcelMergeParameters excelParams);
+        /// <summary>
+        /// Сохранение файла
+        /// </summary>
+        ///<param name="info"></param>
+        protected abstract void SaveExcel(ExcelInfo info);
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/AbstractSaveToPdf.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+
+namespace ComputersShopBusinessLogic.OfficePackage
+{
+    public abstract class AbstractSaveToPdf
+    {
+        public void CreateDoc(PdfInfo info)
+        {
+            CreatePdf(info);
+            CreateParagraph(new PdfParagraph
+            {
+                Text = info.Title,
+                Style =
+           "NormalTitle",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+            CreateParagraph(new PdfParagraph
+            {
+                Text = $"с { info.DateFrom.ToShortDateString() } по { info.DateTo.ToShortDateString() }", Style = "Normal",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+            CreateTable(new List<string> { "2cm", "3cm", "6cm", "3cm", "3cm" });
+            CreateRow(new PdfRowParameters
+            {
+                Texts = new List<string> { "Номер", "Дата заказа", "Изделие", "Сумма", "Статус" },
+                Style = "NormalTitle",
+                ParagraphAlignment = PdfParagraphAlignmentType.Center
+            });
+            foreach (var order in info.Orders)
+            {
+                CreateRow(new PdfRowParameters
+                {
+                    Texts = new List<string> { order.Id.ToString(), order.DateCreate.ToShortDateString(), order.ComputerName, order.Sum.ToString(),
+                        order.Status },
+                    Style = "Normal",
+                    ParagraphAlignment = PdfParagraphAlignmentType.Left
+                });
+            }
+            CreateParagraph(new PdfParagraph
+            {
+                Text = $"Итого: {info.Orders.Sum(x => x.Sum)}\t",
+                Style = "Normal",
+                ParagraphAlignment =
+           PdfParagraphAlignmentType.Rigth
+            });
+            SavePdf(info);
+        }
+        /// <summary>
+        /// Создание doc-файла
+        /// </summary>
+        /// <param name="info"></param>
+        protected abstract void CreatePdf(PdfInfo info);
+        /// <summary>
+        /// Создание параграфа с текстом
+        /// </summary>
+        /// <param name="title"></param>
+        /// <param name="style"></param>
+        protected abstract void CreateParagraph(PdfParagraph paragraph);
+        /// <summary>
+        /// Создание таблицы
+        /// </summary>
+        /// <param name="title"></param>
+        /// <param name="style"></param>
+        protected abstract void CreateTable(List<string> columns);
+        /// <summary>
+        /// Создание и заполнение строки
+        /// </summary>
+        /// <param name="rowParameters"></param>
+        protected abstract void CreateRow(PdfRowParameters rowParameters);
+        /// <summary>
+        /// Сохранение файла
+        /// </summary>
+        /// <param name="info"></param>
+        protected abstract void SavePdf(PdfInfo info);
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/AbstractSaveToWord.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+
+namespace ComputersShopBusinessLogic.OfficePackage
+{
+    public abstract class AbstractSaveToWord
+    {
+        public void CreateDoc(WordInfo info)
+        {
+            CreateWord(info);
+            CreateParagraph(new WordParagraph
+            {
+                Texts = new List<(string, WordTextProperties)> { (info.Title, new WordTextProperties { Bold = true, Size = "24", }) },
+                TextProperties = new WordTextProperties
+                {
+                    Size = "24",
+                    JustificationType = WordJustificationType.Center
+                }
+            });
+            foreach (var computer in info.Computers)
+            {
+                CreateParagraph(new WordParagraph
+                {
+                    Texts = new List<(string, WordTextProperties)> {(computer.ComputerName + " - ", new WordTextProperties { Size = "24", Bold = true}),
+                     (computer.Price.ToString(), new WordTextProperties { Size = "24", })},
+                    TextProperties = new WordTextProperties
+                    {
+                        Size = "24",
+                        JustificationType = WordJustificationType.Both
+                    }
+                });
+            }
+            SaveWord(info);
+        }
+        /// <summary>
+        /// Создание doc-файла
+        /// </summary>
+        /// <param name="info"></param>
+        protected abstract void CreateWord(WordInfo info);
+        /// <summary>
+        /// Создание абзаца с текстом
+        /// </summary>
+        /// <param name="paragraph"></param>
+        /// <returns></returns>
+        protected abstract void CreateParagraph(WordParagraph paragraph);
+        /// <summary>
+        /// Сохранение файла
+        /// </summary>
+        /// <param name="info"></param>
+        protected abstract void SaveWord(WordInfo info);
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperEnums/ExcelStyleInfoType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperEnums
+{
+    public enum ExcelStyleInfoType
+    {
+        Title,
+        Text,
+        TextWithBroder
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperEnums/PdfParagraphAlignmentType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperEnums
+{
+    public enum PdfParagraphAlignmentType
+    {
+        Center,
+        Left,
+        Rigth
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperEnums/WordJustificationType.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperEnums
+{
+    public enum WordJustificationType
+    {
+        Center,
+        Both
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/ExcelCellParameters.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class ExcelCellParameters
+    {
+        public string ColumnName { get; set; } = string.Empty;
+        public uint RowIndex { get; set; }
+        public string Text { get; set; } = string.Empty;
+        public string CellReference => $"{ColumnName}{RowIndex}";
+        public ExcelStyleInfoType StyleInfo { get; set; }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/ExcelInfo.cs

@@ -0,0 +1,20 @@
+using ComputersShopContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class ExcelInfo
+    {
+        public string FileName { get; set; } = string.Empty;
+        public string Title { get; set; } = string.Empty;
+        public List<ReportComputerComponentViewModel> ComputerComponents
+        {
+            get;
+            set;
+        } = new();
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/ExcelMergeParameters.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class ExcelMergeParameters
+    {
+        public string CellFromName { get; set; } = string.Empty;
+        public string CellToName { get; set; } = string.Empty;
+        public string Merge => $"{CellFromName}:{CellToName}";
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/PdfInfo.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.ViewModels;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class PdfInfo
+    {
+        public string FileName { get; set; } = string.Empty;
+        public string Title { get; set; } = string.Empty;
+        public DateTime DateFrom { get; set; }
+        public DateTime DateTo { get; set; }
+        public List<ReportOrdersViewModel> Orders { get; set; } = new();
+    }
+
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/PdfParagraph.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class PdfParagraph
+    {
+        public string Text { get; set; } = string.Empty;
+        public string Style { get; set; } = string.Empty;
+        public PdfParagraphAlignmentType ParagraphAlignment { get; set; }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/PdfRowParameters.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class PdfRowParameters
+    {
+        public List<string> Texts { get; set; } = new();
+        public string Style { get; set; } = string.Empty;
+        public PdfParagraphAlignmentType ParagraphAlignment { get; set; }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/WordInfo.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.ViewModels;
+
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class WordInfo
+    {
+        public string FileName { get; set; } = string.Empty;
+        public string Title { get; set; } = string.Empty;
+        public List<ComputerViewModel> Computers { get; set; } = new();
+
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/WordParagraph.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class WordParagraph
+    {
+        public List<(string, WordTextProperties)> Texts { get; set; } = new();
+        public WordTextProperties? TextProperties { get; set; }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/HelperModels/WordTextProperties.cs

@@ -0,0 +1,16 @@
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopBusinessLogic.OfficePackage.HelperModels
+{
+    public class WordTextProperties
+    {
+        public string Size { get; set; } = string.Empty;
+        public bool Bold { get; set; }
+        public WordJustificationType JustificationType { get; set; }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/Implements/SaveToExcel.cs

@@ -0,0 +1,356 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+using DocumentFormat.OpenXml;
+using DocumentFormat.OpenXml.Office2010.Excel;
+using DocumentFormat.OpenXml.Office2013.Excel;
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Spreadsheet;
+using Microsoft.Extensions.Primitives;
+
+
+namespace ComputersShopBusinessLogic.OfficePackage.Implements
+{
+    public class SaveToExcel : AbstractSaveToExcel
+    {
+        private SpreadsheetDocument? _spreadsheetDocument;
+        private SharedStringTablePart? _shareStringPart;
+        private Worksheet? _worksheet;
+        /// <summary>
+        /// Настройка стилей для файла
+        /// </summary>
+        /// <param name="workbookpart"></param>
+        private static void CreateStyles(WorkbookPart workbookpart)
+        {
+            var sp = workbookpart.AddNewPart<WorkbookStylesPart>();
+            sp.Stylesheet = new Stylesheet();
+            var fonts = new Fonts() { Count = 2U, KnownFonts = true };
+            var fontUsual = new Font();
+            fontUsual.Append(new FontSize() { Val = 12D });
+            fontUsual.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
+            { Theme = 1U });
+            fontUsual.Append(new FontName() { Val = "Times New Roman" });
+            fontUsual.Append(new FontFamilyNumbering() { Val = 2 });
+            fontUsual.Append(new FontScheme() { Val = FontSchemeValues.Minor });
+            var fontTitle = new Font();
+            fontTitle.Append(new Bold());
+            fontTitle.Append(new FontSize() { Val = 14D });
+            fontTitle.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
+            { Theme = 1U });
+            fontTitle.Append(new FontName() { Val = "Times New Roman" });
+            fontTitle.Append(new FontFamilyNumbering() { Val = 2 });
+            fontTitle.Append(new FontScheme() { Val = FontSchemeValues.Minor });
+            fonts.Append(fontUsual);
+            fonts.Append(fontTitle);
+            var fills = new Fills() { Count = 2U };
+            var fill1 = new Fill();
+            fill1.Append(new PatternFill() { PatternType = PatternValues.None });
+            var fill2 = new Fill();
+            fill2.Append(new PatternFill()
+            {
+                PatternType = PatternValues.Gray125
+            });
+            fills.Append(fill1);
+            fills.Append(fill2);
+            var borders = new Borders() { Count = 2U };
+            var borderNoBorder = new Border();
+            borderNoBorder.Append(new LeftBorder());
+            borderNoBorder.Append(new RightBorder());
+            borderNoBorder.Append(new TopBorder());
+            borderNoBorder.Append(new BottomBorder());
+            borderNoBorder.Append(new DiagonalBorder());
+            var borderThin = new Border();
+            var leftBorder = new LeftBorder() { Style = BorderStyleValues.Thin };
+            leftBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
+            { Indexed = 64U });
+            var rightBorder = new RightBorder()
+            {
+                Style = BorderStyleValues.Thin
+            };
+            rightBorder.Append(new
+           DocumentFormat.OpenXml.Office2010.Excel.Color()
+            { Indexed = 64U });
+            var topBorder = new TopBorder() { Style = BorderStyleValues.Thin };
+            topBorder.Append(new DocumentFormat.OpenXml.Office2010.Excel.Color()
+            { Indexed = 64U });
+            var bottomBorder = new BottomBorder()
+            {
+                Style =
+           BorderStyleValues.Thin
+            };
+            bottomBorder.Append(new
+           DocumentFormat.OpenXml.Office2010.Excel.Color()
+            { Indexed = 64U });
+            borderThin.Append(leftBorder);
+            borderThin.Append(rightBorder);
+            borderThin.Append(topBorder);
+            borderThin.Append(bottomBorder);
+            borderThin.Append(new DiagonalBorder());
+            borders.Append(borderNoBorder);
+            borders.Append(borderThin);
+            var cellStyleFormats = new CellStyleFormats() { Count = 1U };
+            var cellFormatStyle = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId
+           = 0U,
+                FillId = 0U,
+                BorderId = 0U
+            };
+            cellStyleFormats.Append(cellFormatStyle);
+            var cellFormats = new CellFormats() { Count = 3U };
+            var cellFormatFont = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId =
+           0U,
+                FillId = 0U,
+                BorderId = 0U,
+                FormatId = 0U,
+                ApplyFont = true
+            };
+            var cellFormatFontAndBorder = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId = 0U,
+                FillId = 0U,
+                BorderId = 1U,
+                FormatId = 0U,
+                ApplyFont = true,
+                ApplyBorder = true
+            };
+            var cellFormatTitle = new CellFormat()
+            {
+                NumberFormatId = 0U,
+                FontId
+           = 1U,
+                FillId = 0U,
+                BorderId = 0U,
+                FormatId = 0U,
+                Alignment = new Alignment()
+                {
+                    Vertical = VerticalAlignmentValues.Center,
+                    WrapText = true,
+                    Horizontal =
+           HorizontalAlignmentValues.Center
+                },
+                ApplyFont = true
+            };
+            cellFormats.Append(cellFormatFont);
+            cellFormats.Append(cellFormatFontAndBorder);
+            cellFormats.Append(cellFormatTitle);
+            var cellStyles = new CellStyles() { Count = 1U };
+            cellStyles.Append(new CellStyle()
+            {
+                Name = "Normal",
+                FormatId = 0U,
+                BuiltinId = 0U
+            });
+            var differentialFormats = new
+           DocumentFormat.OpenXml.Office2013.Excel.DifferentialFormats()
+            { Count = 0U };
+
+            var tableStyles = new TableStyles()
+            {
+                Count = 0U,
+                DefaultTableStyle =
+           "TableStyleMedium2",
+                DefaultPivotStyle = "PivotStyleLight16"
+            };
+            var stylesheetExtensionList = new StylesheetExtensionList();
+            var stylesheetExtension1 = new StylesheetExtension()
+            {
+                Uri =
+           "{EB79DEF2-80B8-43e5-95BD-54CBDDF9020C}"
+            };
+            stylesheetExtension1.AddNamespaceDeclaration("x14",
+           "http://schemas.microsoft.com/office/spreadsheetml/2009/9/main");
+            stylesheetExtension1.Append(new SlicerStyles()
+            {
+                DefaultSlicerStyle =
+           "SlicerStyleLight1"
+            });
+            var stylesheetExtension2 = new StylesheetExtension()
+            {
+                Uri =
+           "{9260A510-F301-46a8-8635-F512D64BE5F5}"
+            };
+            stylesheetExtension2.AddNamespaceDeclaration("x15",
+           "http://schemas.microsoft.com/office/spreadsheetml/2010/11/main");
+            stylesheetExtension2.Append(new TimelineStyles()
+            {
+                DefaultTimelineStyle = "TimeSlicerStyleLight1"
+            });
+            stylesheetExtensionList.Append(stylesheetExtension1);
+            stylesheetExtensionList.Append(stylesheetExtension2);
+            sp.Stylesheet.Append(fonts);
+            sp.Stylesheet.Append(fills);
+            sp.Stylesheet.Append(borders);
+            sp.Stylesheet.Append(cellStyleFormats);
+            sp.Stylesheet.Append(cellFormats);
+            sp.Stylesheet.Append(cellStyles);
+            sp.Stylesheet.Append(differentialFormats);
+            sp.Stylesheet.Append(tableStyles);
+            sp.Stylesheet.Append(stylesheetExtensionList);
+        }
+        /// <summary>
+        /// Получение номера стиля из типа
+        /// </summary>
+        /// <param name="styleInfo"></param>
+        /// <returns></returns>
+        private static uint GetStyleValue(ExcelStyleInfoType styleInfo)
+        {
+            return styleInfo switch
+            {
+                ExcelStyleInfoType.Title => 2U,
+                ExcelStyleInfoType.TextWithBroder => 1U,
+                ExcelStyleInfoType.Text => 0U,
+                _ => 0U,
+            };
+        }
+        protected override void CreateExcel(ExcelInfo info)
+        {
+            _spreadsheetDocument = SpreadsheetDocument.Create(info.FileName,
+           SpreadsheetDocumentType.Workbook);
+            // Создаем книгу (в ней хранятся листы)
+            var workbookpart = _spreadsheetDocument.AddWorkbookPart();
+            workbookpart.Workbook = new Workbook();
+            CreateStyles(workbookpart);
+            // Получаем/создаем хранилище текстов для книги
+            _shareStringPart =
+           _spreadsheetDocument.WorkbookPart!.GetPartsOfType<SharedStringTablePart>().Any()
+            ?
+           _spreadsheetDocument.WorkbookPart.GetPartsOfType<SharedStringTablePart>().First()
+            :
+           _spreadsheetDocument.WorkbookPart.AddNewPart<SharedStringTablePart>();
+            // Создаем SharedStringTable, если его нет
+            if (_shareStringPart.SharedStringTable == null)
+            {
+                _shareStringPart.SharedStringTable = new SharedStringTable();
+            }
+            // Создаем лист в книгу
+            var worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
+            worksheetPart.Worksheet = new Worksheet(new SheetData());
+            // Добавляем лист в книгу
+            var sheets =
+           _spreadsheetDocument.WorkbookPart.Workbook.AppendChild(new Sheets());
+            var sheet = new Sheet()
+            {
+                Id =
+           _spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
+                SheetId = 1,
+                Name = "Лист"
+            };
+            sheets.Append(sheet);
+            _worksheet = worksheetPart.Worksheet;
+        }
+        protected override void InsertCellInWorksheet(ExcelCellParameters
+       excelParams)
+        {
+            if (_worksheet == null || _shareStringPart == null)
+            {
+                return;
+            }
+            var sheetData = _worksheet.GetFirstChild<SheetData>();
+            if (sheetData == null)
+            {
+                return;
+            }
+            // Ищем строку, либо добавляем ее
+            Row row;
+            if (sheetData.Elements<Row>().Where(r => r.RowIndex! ==
+           excelParams.RowIndex).Any())
+            {
+                row = sheetData.Elements<Row>().Where(r => r.RowIndex! ==
+               excelParams.RowIndex).First();
+            }
+            else
+            {
+                row = new Row() { RowIndex = excelParams.RowIndex };
+                sheetData.Append(row);
+            }
+            // Ищем нужную ячейку
+            Cell cell;
+            if (row.Elements<Cell>().Where(c => c.CellReference!.Value == excelParams.CellReference).Any())
+            {
+                cell = row.Elements<Cell>().Where(c => c.CellReference!.Value ==
+               excelParams.CellReference).First();
+            }
+            else
+            {
+                // Все ячейки должны быть последовательно друг за другом расположены
+                // нужно определить, после какой вставлять
+                 Cell? refCell = null;
+                foreach (Cell rowCell in row.Elements<Cell>())
+                {
+                    if (string.Compare(rowCell.CellReference!.Value,
+                   excelParams.CellReference, true) > 0)
+                    {
+                        refCell = rowCell;
+                        break;
+                    }
+                }
+                var newCell = new Cell()
+                {
+                    CellReference =
+               excelParams.CellReference
+                };
+                row.InsertBefore(newCell, refCell);
+                cell = newCell;
+            }
+            // вставляем новый текст
+            _shareStringPart.SharedStringTable.AppendChild(new
+           SharedStringItem(new Text(excelParams.Text)));
+            _shareStringPart.SharedStringTable.Save();
+            cell.CellValue = new
+           CellValue((_shareStringPart.SharedStringTable.Elements<SharedStringItem>().Count(
+           ) - 1).ToString());
+            cell.DataType = new EnumValue<CellValues>(CellValues.SharedString);
+            cell.StyleIndex = GetStyleValue(excelParams.StyleInfo);
+        }
+        protected override void MergeCells(ExcelMergeParameters excelParams)
+        {
+            if (_worksheet == null)
+            {
+                return;
+            }
+            MergeCells mergeCells;
+            if (_worksheet.Elements<MergeCells>().Any())
+            {
+                mergeCells = _worksheet.Elements<MergeCells>().First();
+            }
+            else
+            {
+                mergeCells = new MergeCells();
+                if (_worksheet.Elements<CustomSheetView>().Any())
+                {
+                    _worksheet.InsertAfter(mergeCells,
+                   _worksheet.Elements<CustomSheetView>().First());
+                }
+                else
+                {
+                    _worksheet.InsertAfter(mergeCells,
+_worksheet.Elements<SheetData>().First());
+                }
+            }
+            var mergeCell = new MergeCell()
+            {
+                Reference = new StringValue(excelParams.Merge)
+            };
+            mergeCells.Append(mergeCell);
+        }
+        protected override void SaveExcel(ExcelInfo info)
+        {
+            if (_spreadsheetDocument == null)
+            {
+                return;
+            }
+            _spreadsheetDocument.WorkbookPart!.Workbook.Save();
+            _spreadsheetDocument.Dispose();
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/Implements/SaveToPdf.cs

@@ -0,0 +1,107 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+using MigraDoc.DocumentObjectModel;
+using MigraDoc.DocumentObjectModel.Tables;
+using MigraDoc.Rendering;
+
+
+namespace ComputersShopBusinessLogic.OfficePackage.Implements
+{
+    public class SaveToPdf : AbstractSaveToPdf
+    {
+        private Document? _document;
+        private Section? _section;
+        private Table? _table;
+        private static ParagraphAlignment
+       GetParagraphAlignment(PdfParagraphAlignmentType type)
+        {
+            return type switch
+            {
+                PdfParagraphAlignmentType.Center => ParagraphAlignment.Center,
+                PdfParagraphAlignmentType.Left => ParagraphAlignment.Left,
+                PdfParagraphAlignmentType.Rigth => ParagraphAlignment.Right,
+                _ => ParagraphAlignment.Justify,
+            };
+        }
+        /// <summary>
+        /// Создание стилей для документа
+        /// </summary>
+        /// <param name="document"></param>
+        private static void DefineStyles(Document document)
+        {
+            var style = document.Styles["Normal"];
+            style.Font.Name = "Times New Roman";
+            style.Font.Size = 14;
+            style = document.Styles.AddStyle("NormalTitle", "Normal");
+            style.Font.Bold = true;
+        }
+        protected override void CreatePdf(PdfInfo info)
+        {
+            _document = new Document();
+            DefineStyles(_document);
+            _section = _document.AddSection();
+        }
+        protected override void CreateParagraph(PdfParagraph pdfParagraph)
+        {
+            if (_section == null)
+            {
+                return;
+            }
+            var paragraph = _section.AddParagraph(pdfParagraph.Text);
+            paragraph.Format.SpaceAfter = "1cm";
+            paragraph.Format.Alignment =
+           GetParagraphAlignment(pdfParagraph.ParagraphAlignment);
+            paragraph.Style = pdfParagraph.Style;
+        }
+        protected override void CreateTable(List<string> columns)
+        {
+            if (_document == null)
+            {
+                return;
+            }
+            _table = _document.LastSection.AddTable();
+            foreach (var elem in columns)
+            {
+                _table.AddColumn(elem);
+            }
+        }
+        protected override void CreateRow(PdfRowParameters rowParameters)
+        {
+            if (_table == null)
+            {
+                return;
+            }
+            var row = _table.AddRow();
+            for (int i = 0; i < rowParameters.Texts.Count; ++i)
+            {
+                row.Cells[i].AddParagraph(rowParameters.Texts[i]);
+                if (!string.IsNullOrEmpty(rowParameters.Style))
+                {
+                    row.Cells[i].Style = rowParameters.Style;
+                }
+                Unit borderWidth = 0.5;
+                row.Cells[i].Borders.Left.Width = borderWidth;
+                row.Cells[i].Borders.Right.Width = borderWidth;
+                row.Cells[i].Borders.Top.Width = borderWidth;
+                row.Cells[i].Borders.Bottom.Width = borderWidth;
+                row.Cells[i].Format.Alignment =
+               GetParagraphAlignment(rowParameters.ParagraphAlignment);
+                row.Cells[i].VerticalAlignment = VerticalAlignment.Center;
+            }
+        }
+        protected override void SavePdf(PdfInfo info)
+        {
+            var renderer = new PdfDocumentRenderer(true)
+            {
+                Document = _document
+            };
+            renderer.RenderDocument();
+            renderer.PdfDocument.Save(info.FileName);
+        }
+    }
+}

ComputersShop/ComputersShopBusinessLogic/OfficePackage/Implements/SaveToWord.cs

@@ -0,0 +1,131 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopBusinessLogic.OfficePackage.HelperEnums;
+using ComputersShopBusinessLogic.OfficePackage.HelperModels;
+using DocumentFormat.OpenXml;
+using DocumentFormat.OpenXml.Packaging;
+using DocumentFormat.OpenXml.Wordprocessing;
+
+
+namespace ComputersShopBusinessLogic.OfficePackage.Implements
+{
+    public class SaveToWord : AbstractSaveToWord
+    {
+        private WordprocessingDocument? _wordDocument;
+        private Body? _docBody;
+        /// <summary>
+        /// Получение типа выравнивания
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        private static JustificationValues
+       GetJustificationValues(WordJustificationType type)
+        {
+            return type switch
+            {
+                WordJustificationType.Both => JustificationValues.Both,
+                WordJustificationType.Center => JustificationValues.Center,
+                _ => JustificationValues.Left,
+            };
+        }
+        /// <summary>
+        /// Настройки страницы
+        /// </summary>
+        /// <returns></returns>
+        private static SectionProperties CreateSectionProperties()
+        {
+            var properties = new SectionProperties();
+            var pageSize = new PageSize
+            {
+                Orient = PageOrientationValues.Portrait
+            };
+            properties.AppendChild(pageSize);
+            return properties;
+        }
+        /// <summary>
+        /// Задание форматирования для абзаца
+        /// </summary>
+        /// <param name="paragraphProperties"></param>
+        /// <returns></returns>
+        private static ParagraphProperties?
+       CreateParagraphProperties(WordTextProperties? paragraphProperties)
+        {
+            if (paragraphProperties == null)
+            {
+                return null;
+            }
+            var properties = new ParagraphProperties();
+            properties.AppendChild(new Justification()
+            {
+                Val =
+GetJustificationValues(paragraphProperties.JustificationType)
+            });
+            properties.AppendChild(new SpacingBetweenLines
+            {
+                LineRule = LineSpacingRuleValues.Auto
+            });
+            properties.AppendChild(new Indentation());
+            var paragraphMarkRunProperties = new ParagraphMarkRunProperties();
+            if (!string.IsNullOrEmpty(paragraphProperties.Size))
+            {
+                paragraphMarkRunProperties.AppendChild(new FontSize
+                {
+                    Val =
+               paragraphProperties.Size
+                });
+            }
+            properties.AppendChild(paragraphMarkRunProperties);
+            return properties;
+        }
+        protected override void CreateWord(WordInfo info)
+        {
+            _wordDocument = WordprocessingDocument.Create(info.FileName,
+           WordprocessingDocumentType.Document);
+            MainDocumentPart mainPart = _wordDocument.AddMainDocumentPart();
+            mainPart.Document = new Document();
+            _docBody = mainPart.Document.AppendChild(new Body());
+        }
+        protected override void CreateParagraph(WordParagraph paragraph)
+        {
+            if (_docBody == null || paragraph == null)
+            {
+                return;
+            }
+            var docParagraph = new Paragraph();
+
+            docParagraph.AppendChild(CreateParagraphProperties(paragraph.TextProperties));
+            foreach (var run in paragraph.Texts)
+            {
+                var docRun = new Run();
+                var properties = new RunProperties();
+                properties.AppendChild(new FontSize { Val = run.Item2.Size });
+                if (run.Item2.Bold)
+                {
+                    properties.AppendChild(new Bold());
+                }
+                docRun.AppendChild(properties);
+                docRun.AppendChild(new Text
+                {
+                    Text = run.Item1,
+                    Space =
+               SpaceProcessingModeValues.Preserve
+                });
+                docParagraph.AppendChild(docRun);
+            }
+            _docBody.AppendChild(docParagraph);
+        }
+        protected override void SaveWord(WordInfo info)
+        {
+            if (_docBody == null || _wordDocument == null)
+            {
+                return;
+            }
+            _docBody.AppendChild(CreateSectionProperties());
+            _wordDocument.MainDocumentPart!.Document.Save();
+            _wordDocument.Dispose();
+        }
+    }
+}

ComputersShop/ComputersShopContracts/BindingModels/ComponentBindingModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+
+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 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+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 System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+
+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/ReportBindingModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.BindingModels
+{
+    public class ReportBindingModel
+    {
+        public string FileName { get; set; } = string.Empty;
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/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.BusinessLogicsContracts
+{
+    public interface IComponentLogic
+    {
+        List<ComponentViewModel>? ReadList(ComponentSearchModel? model);
+        ComponentViewModel? ReadElement(ComponentSearchModel model);
+        bool Create(ComponentBindingModel model);
+        bool Update(ComponentBindingModel model);
+        bool Delete(ComponentBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/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.BusinessLogicsContracts
+{
+    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/BusinessLogicsContracts/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.BusinessLogicsContracts
+{
+    public interface IOrderLogic
+    {
+        List<OrderViewModel>? ReadList(OrderSearchModel? model);
+        bool CreateOrder(OrderBindingModel model);
+        bool TakeOrderInWork(OrderBindingModel model);
+        bool FinishOrder(OrderBindingModel model);
+        bool DeliveryOrder(OrderBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/BusinessLogicsContracts/IReportLogic.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopContracts.SearchModels;
+using System.Collections.Generic;
+
+namespace ComputersShopContracts.BusinessLogicsContracts
+{
+    public interface IReportLogic
+    {
+        List<ReportComputerComponentViewModel> GetComputerComponents();
+
+        List<ReportOrdersViewModel> GetOrders(ReportBindingModel model);
+
+        void SaveComputersToWordFile(ReportBindingModel model);
+
+        void SaveComputerComponentToExcelFile(ReportBindingModel model);
+
+        void SaveOrdersToPdfFile(ReportBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/ComputersShopContracts.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+    <PackageReference Include="Serilog.AspNetCore" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopDataModels\ComputersShopDataModels.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 +1,15 @@
+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 +1,16 @@
+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; }
+        public DateTime? DateFrom { get; set; }
+        public DateTime? DateTo { get; set; }
+    }
+
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IComponentStorage.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IComponentStorage
+    {
+        List<ComponentViewModel> GetFullList();
+        List<ComponentViewModel> GetFiltredList(ComponentSearchModel model);
+        ComponentViewModel? GetElement(ComponentSearchModel model);
+        ComponentViewModel? Insert(ComponentBindingModel model);
+        ComponentViewModel? Update(ComponentBindingModel model);
+        ComponentViewModel? Delete(ComponentBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IComputerStorage.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IComputerStorage
+    {
+        List<ComputerViewModel> GetFullList();
+        List<ComputerViewModel> GetFiltredList(ComputerSearchModel model);
+        ComputerViewModel? GetElement(ComputerSearchModel model);
+        ComputerViewModel? Insert(ComputerBindingModel model);
+        ComputerViewModel? Update(ComputerBindingModel model);
+        ComputerViewModel? Delete(ComputerBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/StoragesContracts/IOrderStorage.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.ViewModels;
+
+namespace ComputersShopContracts.StoragesContracts
+{
+    public interface IOrderStorage
+    {
+        List<OrderViewModel> GetFullList();
+        List<OrderViewModel> GetFiltredList(OrderSearchModel model);
+        OrderViewModel? GetElement(OrderSearchModel model);
+        OrderViewModel? Insert(OrderBindingModel model);
+        OrderViewModel? Update(OrderBindingModel model);
+        OrderViewModel? Delete(OrderBindingModel model);
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/ComponentViewModel.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+using System.ComponentModel;
+
+
+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 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+
+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 +1,37 @@
+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/ReportComputerComponentViewModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class ReportComputerComponentViewModel
+    {
+        public string ComputerName { get; set; } = string.Empty;
+        public int TotalCount { get; set; }
+        public List<(string Component, int Count)> Components { get; set; } = new();
+    }
+}

ComputersShop/ComputersShopContracts/ViewModels/ReportOrdersViewModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopContracts.ViewModels
+{
+    public class ReportOrdersViewModel
+    {
+        public int Id { get; set; }
+        public DateTime DateCreate { get; set; }
+        public string ComputerName { get; set; } = string.Empty;
+        public double Sum { get; set; }
+        public string Status { get; set; } = string.Empty;
+
+    }
+}

ComputersShop/ComputersShopDataModels/ComputersShopDataModels.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.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+    <PackageReference Include="Serilog.AspNetCore" Version="8.0.1" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopDataModels/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/ComputersShopDataModels/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/ComputersShopDataModels/Models/IComponentModel.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 IComponentModel : IId
+    {
+        string ComponentName { get; }
+        double Cost { get; }
+    }
+
+}

ComputersShop/ComputersShopDataModels/Models/IComputerModel.cs

@@ -0,0 +1,16 @@
+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/ComputersShopDataModels/Models/IOrderModel.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Enums;
+
+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/ComputersShopDatabaseImplement/ComputerShopDatabase.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+
+namespace ComputersShopDatabaseImplement
+{
+    public class ComputersShopDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-1DE5E8N\SQLEXPRESS;Initial Catalog=ComputersShopDatabaseFull;
+                Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Computer> Computers { set; get; }
+        public virtual DbSet<ComputerComponent> ComputerComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/ComputersShopDatabaseImplement.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.17" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopDataModels\ComputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDatabaseImplement.Models;
+
+namespace ComputersShopDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new ComputersShopDatabase();
+            return context.Components.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ComponentViewModel> GetFiltredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            using var context = new ComputersShopDatabase();
+            return context.Components.Where(x => x.ComponentName.Contains(model.ComponentName)).
+                Select(x => x.GetViewModel).ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputersShopDatabase();
+            return context.Components.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComponentName)
+            && x.ComponentName == model.ComponentName) || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            using var context = new ComputersShopDatabase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            var component = context.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Implements/ComputerStorage.cs

@@ -0,0 +1,94 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputersShopDatabaseImplement.Implements
+{
+    public class ComputerStorage : IComputerStorage
+    {
+        public List<ComputerViewModel> GetFullList()
+        {
+            using var context = new ComputersShopDatabase();
+            return context.Computers.Include(x => x.Components).ThenInclude(x => x.Component)
+            .ToList().Select(x => x.GetViewModel).ToList();
+        }
+        public List<ComputerViewModel> GetFiltredList(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName))
+            {
+                return new();
+            }
+            using var context = new ComputersShopDatabase();
+            return context.Computers.Include(x => x.Components).ThenInclude(x => x.Component)
+            .Where(x => x.ComputerName.Contains(model.ComputerName)).ToList()
+            .Select(x => x.GetViewModel).ToList();
+        }
+        public ComputerViewModel? GetElement(ComputerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComputerName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputersShopDatabase();
+            return context.Computers.Include(x => x.Components).ThenInclude(x => x.Component)
+             .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ComputerName) &&
+            x.ComputerName == model.ComputerName) ||
+            (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComputerViewModel? Insert(ComputerBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            var newComputer = Computer.Create(context, model);
+            if (newComputer == null)
+            {
+                return null;
+            }
+            context.Computers.Add(newComputer);
+            context.SaveChanges();
+            return newComputer.GetViewModel;
+        }
+        public ComputerViewModel? Update(ComputerBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var computer = context.Computers.FirstOrDefault(rec => rec.Id == model.Id);
+                if (computer == null)
+                {
+                    return null;
+                }
+                computer.Update(model);
+                context.SaveChanges();
+                computer.UpdateComponents(context, model);
+                transaction.Commit();
+                return computer.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public ComputerViewModel? Delete(ComputerBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            var element = context.Computers.Include(x => x.Components).FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Computers.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComputersShopDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new ComputersShopDatabase();
+            return context.Orders.Include(x => x.Computer).FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public List<OrderViewModel> GetFiltredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue && !model.DateFrom.HasValue)
+            {
+                return new();
+            }
+            using var context = new ComputersShopDatabase();
+            if (model.DateFrom.HasValue)
+            {
+                return context.Orders
+                    .Include(x => x.Computer)
+                    .Where(x => x.DateCreate >= model.DateFrom && x.DateCreate <= model.DateTo)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+            return context.Orders
+                    .Include(x => x.Computer)
+                    .Where(x => x.Id == model.Id)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new ComputersShopDatabase();
+            return context.Orders.Include(x => x.Computer).Select(x => x.GetViewModel).ToList();
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new ComputersShopDatabase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return context.Orders.Include(x => x.Computer).FirstOrDefault(x => x.Id == newOrder.Id)?.GetViewModel;
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return context.Orders.Include(x => x.Computer).FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new ComputersShopDatabase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Migrations/20240326105531_InitialCreate.Designer.cs

@@ -0,0 +1,171 @@
+// <auto-generated />
+using System;
+using ComputersShopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace ComputersShopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputersShopDatabase))]
+    [Migration("20240326105531_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Computer", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComputerName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Computers");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.ComputerComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ComputerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ComputerId");
+
+                    b.ToTable("ComputerComponents");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComputerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComputerId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.ComputerComponent", b =>
+                {
+                    b.HasOne("ComputersShopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ComputerComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputersShopDatabaseImplement.Models.Computer", "Computer")
+                        .WithMany("Components")
+                        .HasForeignKey("ComputerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Computer");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ComputersShopDatabaseImplement.Models.Computer", "Computer")
+                        .WithMany("Orders")
+                        .HasForeignKey("ComputerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Computer");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("ComputerComponents");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Computer", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Migrations/20240326105531_InitialCreate.cs

@@ -0,0 +1,125 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace ComputersShopDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComponentName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Computers",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComputerName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Computers", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ComputerComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComputerId = table.Column<int>(type: "int", nullable: false),
+                    ComponentId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ComputerComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ComputerComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ComputerComponents_Computers_ComputerId",
+                        column: x => x.ComputerId,
+                        principalTable: "Computers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComputerId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Computers_ComputerId",
+                        column: x => x.ComputerId,
+                        principalTable: "Computers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ComputerComponents_ComponentId",
+                table: "ComputerComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ComputerComponents_ComputerId",
+                table: "ComputerComponents",
+                column: "ComputerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_ComputerId",
+                table: "Orders",
+                column: "ComputerId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ComputerComponents");
+
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Computers");
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Migrations/ComputersShopDatabaseModelSnapshot.cs

@@ -0,0 +1,168 @@
+// <auto-generated />
+using System;
+using ComputersShopDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace ComputersShopDatabaseImplement.Migrations
+{
+    [DbContext(typeof(ComputersShopDatabase))]
+    partial class ComputersShopDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.17")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Computer", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComputerName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Computers");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.ComputerComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ComputerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("ComputerId");
+
+                    b.ToTable("ComputerComponents");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComputerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComputerId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.ComputerComponent", b =>
+                {
+                    b.HasOne("ComputersShopDatabaseImplement.Models.Component", "Component")
+                        .WithMany("ComputerComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("ComputersShopDatabaseImplement.Models.Computer", "Computer")
+                        .WithMany("Components")
+                        .HasForeignKey("ComputerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Computer");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("ComputersShopDatabaseImplement.Models.Computer", "Computer")
+                        .WithMany("Orders")
+                        .HasForeignKey("ComputerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Computer");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("ComputerComponents");
+                });
+
+            modelBuilder.Entity("ComputersShopDatabaseImplement.Models.Computer", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Models/Component.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace ComputersShopDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<ComputerComponent> ComputerComponents { get; set; } = new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost,
+            };
+        }
+        public static Component Create(ComponentViewModel model)
+        {
+            return new Component
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Models/Computer.cs

@@ -0,0 +1,94 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopDataModels.Models;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+
+namespace ComputersShopDatabaseImplement.Models
+{
+    public class Computer : IComputerModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string ComputerName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _computerComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> ComputerComponents
+        {
+            get
+            {
+                if (_computerComponents == null)
+                {
+                    _computerComponents = Components.ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _computerComponents;
+            }
+        }
+        [ForeignKey("ComputerId")]
+        public virtual List<ComputerComponent> Components { get; set; } = new();
+        [ForeignKey("ComputerId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Computer Create(ComputersShopDatabase context, ComputerBindingModel model)
+        {
+            return new Computer()
+            {
+                Id = model.Id,
+                ComputerName = model.ComputerName,
+                Price = model.Price,
+                Components = model.ComputerComponents.Select(x => new ComputerComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(ComputerBindingModel model)
+        {
+            ComputerName = model.ComputerName;
+            Price = model.Price;
+        }
+        public ComputerViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerName = ComputerName,
+            Price = Price,
+            ComputerComponents = ComputerComponents
+        };
+        public void UpdateComponents(ComputersShopDatabase context, ComputerBindingModel model)
+        {
+            var computerComponents = context.ComputerComponents.Where(rec => rec.ComputerId == model.Id).ToList();
+            if (computerComponents != null && computerComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.ComputerComponents.RemoveRange(computerComponents.Where(rec => !model.ComputerComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in computerComponents)
+                {
+                    updateComponent.Count = model.ComputerComponents[updateComponent.ComponentId].Item2;
+                    model.ComputerComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var computer = context.Computers.First(x => x.Id == Id);
+            foreach (var pc in model.ComputerComponents)
+            {
+                context.ComputerComponents.Add(new ComputerComponent
+                {
+                    Computer = computer,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _computerComponents = null;
+        }
+    }
+}

ComputersShop/ComputersShopDatabaseImplement/Models/ComputerComponent.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ComputersShopDatabaseImplement.Models
+{
+    public class ComputerComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ComputerId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Computer Computer { get; set; } = new();
+    }
+
+}

ComputersShop/ComputersShopDatabaseImplement/Models/Order.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+
+namespace ComputersShopDatabaseImplement.Models
+{
+    public class Order
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int ComputerId { get; private set; }
+        [Required]
+        public int Count { get; private set; }
+        [Required]
+        public double Sum { get; private set; }
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        public DateTime? DateImplement { get; private set; }
+        public virtual Computer Computer { get; private set; }
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order
+            {
+                ComputerId = model.ComputerId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                Id = model.Id,
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            ComputerId = ComputerId,
+            Count = Count,
+            Sum = Sum,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id,
+            Status = Status,
+            ComputerName = Computer.ComputerName
+        };
+    }
+}

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="..\ComputersShopDataModels\ComputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopFileImplement/DataFileSingleton.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopFileImplement.Models;
+using System.Xml.Linq;
+
+
+namespace ComputersShopFileImplement
+{
+    internal class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        public readonly string ComponentFileName = "Component.xml";
+        public readonly string OrderFileName = "Order.xml";
+        public readonly string ComputerFileName = "Computer.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Computer> Computers { 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);
+        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)!)!;
+        }
+        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 +1,83 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+
+
+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> GetFiltredList(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 System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+
+namespace ComputersShopFileImplement.Implements
+{
+    public class ComputerStorage : IComputerStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComputerStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComputerViewModel> GetFullList()
+        {
+            return source.Computers.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ComputerViewModel> GetFiltredList(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 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 ComputerViewModel? Insert(ComputerBindingModel model)
+        {
+            model.Id = source.Computers.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
+            var newComputer = Computer.Create(model);
+            if (newComputer == null)
+            {
+                return null;
+            }
+            source.Computers.Add(newComputer);
+            source.SaveComputers();
+            return newComputer.GetViewModel;
+        }
+        public ComputerViewModel? Update(ComputerBindingModel model)
+        {
+            var computer = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+            if (computer == null)
+            {
+                return null;
+            }
+            computer.Update(model);
+            source.SaveComputers();
+            return computer.GetViewModel;
+        }
+        public ComputerViewModel? Delete(ComputerBindingModel model)
+        {
+            var element = source.Computers.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Computers.Remove(element);
+                source.SaveComputers();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

ComputersShop/ComputersShopFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,102 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopFileImplement.Models;
+
+namespace ComputersShopFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+        public List<OrderViewModel> GetFiltredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue && !model.DateFrom.HasValue)
+            {
+                return new();
+            }
+            if (model.DateFrom.HasValue)
+            { 
+                return source.Orders
+                    .Where(x => x.DateCreate >= model.DateFrom && x.DateCreate <= model.DateTo)
+                    .Select(x => AddComputerName(x.GetViewModel))
+                    .ToList(); 
+            }
+            return source.Orders
+                    .Where(x => x.Id == model.Id)
+                    .Select(x => AddComputerName(x.GetViewModel))
+                    .ToList();
+        }
+        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 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? 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? Delete(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            source.Orders.Remove(order);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var computer = source.Computers.FirstOrDefault(x => x.Id == order.ComputerId);
+            viewModel.ComputerName = computer?.ComputerName;
+            return viewModel;
+        }
+        private OrderViewModel AddComputerName(OrderViewModel model)
+        {
+            var selectedPastry = source.Computers.FirstOrDefault(x => x.Id == model.ComputerId);
+            if (selectedPastry != null)
+            {
+                model.ComputerName = selectedPastry.ComputerName;
+            }
+            return model;
+        }
+    }
+}

ComputersShop/ComputersShopFileImplement/Models/Component.cs

@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+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 +1,93 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+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 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Enums;
+using ComputersShopDataModels.Models;
+using System.Xml.Linq;
+
+namespace ComputersShopFileImplement.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; private set; } = OrderStatus.Неизвестен;
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+        public DateTime? DateImplement { get; private set; }
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                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 id = Convert.ToInt32(element.Attribute("Id")!.Value);
+            var computerId = Convert.ToInt32(element.Element("ComputerId")!.Value);
+            var sum = Convert.ToDouble(element.Element("Sum")!.Value);
+            var count = Convert.ToInt32(element.Element("Count")!.Value);
+            var status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value);
+            var dateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value);
+            var dateImplement = DateTime.Now;
+
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComputerId = Convert.ToInt32(element.Element("ComputerId")!.Value),
+                Sum = Convert.ToDouble(element.Element("Sum")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Status = (OrderStatus)Enum.Parse(typeof(OrderStatus), element.Element("Status")!.Value),
+                DateCreate = Convert.ToDateTime(element.Element("DateCreate")!.Value),
+                DateImplement = string.IsNullOrEmpty(element.Element("DateImplement")!.Value) ? null : Convert.ToDateTime(element.Element("DateImplement")!.Value)
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComputerId = ComputerId,
+            Sum = Sum,
+            Count = Count,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+        };
+        public XElement GetXElement => new(
+            "Order",
+            new XAttribute("Id", Id),
+            new XElement("ComputerId", ComputerId.ToString()),
+            new XElement("Count", Count.ToString()),
+            new XElement("Sum", Sum.ToString()),
+            new XElement("Status", Status.ToString()),
+            new XElement("DateCreate", DateCreate.ToString()),
+            new XElement("DateImplement", DateImplement.ToString())
+            );
+    }
+}

ComputersShop/ComputersShopListImplement/ComputersShopListImplement.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+    <PackageReference Include="Serilog.AspNetCore" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopDataModels\ComputersShopDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

ComputersShop/ComputersShopListImplement/DataListSingleton.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopListImplement.Models;
+
+namespace AbstractShopListImplement
+{
+    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; }
+        private DataListSingleton()
+        {
+            Components = new List<Component>();
+            Orders = new List<Order>();
+            Computers = new List<Computer>();
+        }
+        public static DataListSingleton GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new DataListSingleton();
+            }
+            return _instance;
+        }
+    }
+}

ComputersShop/ComputersShopListImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,108 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AbstractShopListImplement;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+
+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> GetFiltredList(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 +1,109 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AbstractShopListImplement;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+
+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> GetFiltredList(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 +1,119 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using AbstractShopListImplement;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.SearchModels;
+using ComputersShopContracts.StoragesContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopListImplement.Models;
+
+namespace ComputersShopListImplement.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(AddComputerName(order.GetViewModel));
+            }
+            return result;
+        }
+        public List<OrderViewModel> GetFiltredList(OrderSearchModel model)
+        {
+            var result = new List<OrderViewModel>();
+            if (!model.Id.HasValue && !model.DateFrom.HasValue)
+            {
+                return result;
+            }
+            if (model.DateFrom.HasValue)
+            {
+                foreach (var order in _source.Orders)
+                {
+                    if (order.Id == model.Id)
+                    {
+                        result.Add(AddComputerName(order.GetViewModel));
+                    }
+                }
+            }
+            return result;
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id.HasValue && order.Id == model.Id)
+                {
+                    return AddComputerName(order.GetViewModel);
+                }
+            }
+            return null;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = 1;
+            foreach (var order in _source.Orders)
+            {
+                if (model.Id <= order.Id)
+                {
+                    model.Id = order.Id + 1;
+                }
+            }
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            _source.Orders.Add(newOrder);
+            return AddComputerName(newOrder.GetViewModel);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            foreach (var order in _source.Orders)
+            {
+                if (order.Id == model.Id)
+                {
+                    order.Update(model);
+                    return AddComputerName(order.GetViewModel);
+                }
+            }
+            return null;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            for (int i = 0; i < _source.Orders.Count; ++i)
+            {
+                if (_source.Orders[i].Id == model.Id)
+                {
+                    var element = _source.Orders[i];
+                    _source.Orders.RemoveAt(i);
+                    return AddComputerName(element.GetViewModel);
+                }
+            }
+            return null;
+        }
+        private OrderViewModel AddComputerName(OrderViewModel model)
+        {
+            var selectedComputer = _source.Computers.Find(computer => computer.Id == model.ComputerId);
+            if (selectedComputer != null)
+            {
+                model.ComputerName = selectedComputer.ComputerName;
+            }
+            return model;
+        }
+    }
+}
+

ComputersShop/ComputersShopListImplement/Models/Component.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+
+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 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+
+
+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 +1,60 @@
+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;
+
+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; private set; }
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                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/ComputersShopView/ComputersShopView.csproj

@@ -8,4 +8,36 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <None Remove="nlog.config" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="nlog.config">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.17">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.3.8" />
+    <PackageReference Include="ReportViewerCore.WinForms" Version="15.1.19" />
+    <PackageReference Include="Serilog.AspNetCore" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ComputersShopBusinessLogic\ComputersShopBusinessLogic.csproj" />
+    <ProjectReference Include="..\ComputersShopContracts\ComputersShopContracts.csproj" />
+    <ProjectReference Include="..\ComputersShopDatabaseImplement\ComputersShopDatabaseImplement.csproj" />
+    <ProjectReference Include="..\ComputersShopFileImplement\ComputersShopFileImplement.csproj" />
+    <ProjectReference Include="..\ComputersShopListImplement\ComputersShopListImplement.csproj" />
+  </ItemGroup>
+
 </Project>

ComputersShop/ComputersShopView/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace ComputersShopView
-{
-    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/ComputersShopView/Form1.cs

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

ComputersShop/ComputersShopView/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/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.labelCost = new System.Windows.Forms.Label();
+            this.textBoxName = new System.Windows.Forms.TextBox();
+            this.textBoxCost = new System.Windows.Forms.TextBox();
+            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, 27);
+            this.labelName.Name = "labelName";
+            this.labelName.Size = new System.Drawing.Size(80, 20);
+            this.labelName.TabIndex = 0;
+            this.labelName.Text = "Название:";
+            // 
+            // labelCost
+            // 
+            this.labelCost.AutoSize = true;
+            this.labelCost.Location = new System.Drawing.Point(12, 72);
+            this.labelCost.Name = "labelCost";
+            this.labelCost.Size = new System.Drawing.Size(48, 20);
+            this.labelCost.TabIndex = 1;
+            this.labelCost.Text = "Цена:";
+            // 
+            // textBoxName
+            // 
+            this.textBoxName.Location = new System.Drawing.Point(98, 27);
+            this.textBoxName.Name = "textBoxName";
+            this.textBoxName.Size = new System.Drawing.Size(263, 27);
+            this.textBoxName.TabIndex = 2;
+            // 
+            // textBoxCost
+            // 
+            this.textBoxCost.Location = new System.Drawing.Point(98, 69);
+            this.textBoxCost.Name = "textBoxCost";
+            this.textBoxCost.Size = new System.Drawing.Size(130, 27);
+            this.textBoxCost.TabIndex = 3;
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(174, 117);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(94, 29);
+            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, 117);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
+            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(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(411, 172);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.textBoxCost);
+            this.Controls.Add(this.textBoxName);
+            this.Controls.Add(this.labelCost);
+            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 Label labelCost;
+        private TextBox textBoxName;
+        private TextBox textBoxCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

ComputersShop/ComputersShopView/FormComponent.cs

@@ -0,0 +1,97 @@
+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;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+
+
+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 +1,115 @@
+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(1, 0);
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersWidth = 51;
+            this.dataGridView.RowTemplate.Height = 29;
+            this.dataGridView.Size = new System.Drawing.Size(517, 451);
+            this.dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            this.buttonAdd.Location = new System.Drawing.Point(542, 29);
+            this.buttonAdd.Name = "buttonAdd";
+            this.buttonAdd.Size = new System.Drawing.Size(119, 29);
+            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(542, 79);
+            this.buttonUpd.Name = "buttonUpd";
+            this.buttonUpd.Size = new System.Drawing.Size(119, 29);
+            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(542, 131);
+            this.buttonDel.Name = "buttonDel";
+            this.buttonDel.Size = new System.Drawing.Size(119, 29);
+            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(542, 175);
+            this.buttonRef.Name = "buttonRef";
+            this.buttonRef.Size = new System.Drawing.Size(119, 29);
+            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(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(683, 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 +1,117 @@
+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;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using Microsoft.Extensions.Logging;
+
+
+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 +1,236 @@
+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.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.dataGridView = new System.Windows.Forms.DataGridView();
+            this.buttonUpd = new System.Windows.Forms.Button();
+            this.buttonDel = new System.Windows.Forms.Button();
+            this.buttonRef = new System.Windows.Forms.Button();
+            this.buttonAdd = new System.Windows.Forms.Button();
+            this.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.labelName = new System.Windows.Forms.Label();
+            this.labelPrice = new System.Windows.Forms.Label();
+            this.textBoxPrice = new System.Windows.Forms.TextBox();
+            this.textBoxName = new System.Windows.Forms.TextBox();
+            this.ColumnId = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.ColumnComponent = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.ColumnCount = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.groupBox1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.dataGridView);
+            this.groupBox1.Controls.Add(this.buttonUpd);
+            this.groupBox1.Controls.Add(this.buttonDel);
+            this.groupBox1.Controls.Add(this.buttonRef);
+            this.groupBox1.Controls.Add(this.buttonAdd);
+            this.groupBox1.Location = new System.Drawing.Point(12, 111);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(776, 292);
+            this.groupBox1.TabIndex = 0;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "Компоненты";
+            // 
+            // dataGridView
+            // 
+            this.dataGridView.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
+            | System.Windows.Forms.AnchorStyles.Left) 
+            | System.Windows.Forms.AnchorStyles.Right)));
+            this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
+            this.ColumnId,
+            this.ColumnComponent,
+            this.ColumnCount});
+            this.dataGridView.Location = new System.Drawing.Point(6, 26);
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersWidth = 51;
+            this.dataGridView.RowTemplate.Height = 29;
+            this.dataGridView.Size = new System.Drawing.Size(619, 259);
+            this.dataGridView.TabIndex = 6;
+            // 
+            // buttonUpd
+            // 
+            this.buttonUpd.Location = new System.Drawing.Point(648, 98);
+            this.buttonUpd.Name = "buttonUpd";
+            this.buttonUpd.Size = new System.Drawing.Size(94, 29);
+            this.buttonUpd.TabIndex = 3;
+            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(648, 160);
+            this.buttonDel.Name = "buttonDel";
+            this.buttonDel.Size = new System.Drawing.Size(94, 29);
+            this.buttonDel.TabIndex = 4;
+            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(648, 220);
+            this.buttonRef.Name = "buttonRef";
+            this.buttonRef.Size = new System.Drawing.Size(94, 29);
+            this.buttonRef.TabIndex = 5;
+            this.buttonRef.Text = "Обновить";
+            this.buttonRef.UseVisualStyleBackColor = true;
+            this.buttonRef.Click += new System.EventHandler(this.ButtonRef_Click);
+            // 
+            // buttonAdd
+            // 
+            this.buttonAdd.Location = new System.Drawing.Point(648, 35);
+            this.buttonAdd.Name = "buttonAdd";
+            this.buttonAdd.Size = new System.Drawing.Size(94, 29);
+            this.buttonAdd.TabIndex = 2;
+            this.buttonAdd.Text = "Добавить";
+            this.buttonAdd.UseVisualStyleBackColor = true;
+            this.buttonAdd.Click += new System.EventHandler(this.ButtonAdd_Click);
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(513, 409);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(118, 29);
+            this.buttonSave.TabIndex = 0;
+            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(652, 409);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(111, 29);
+            this.buttonCancel.TabIndex = 1;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+            // 
+            // labelName
+            // 
+            this.labelName.AutoSize = true;
+            this.labelName.Location = new System.Drawing.Point(12, 30);
+            this.labelName.Name = "labelName";
+            this.labelName.Size = new System.Drawing.Size(80, 20);
+            this.labelName.TabIndex = 6;
+            this.labelName.Text = "Название:";
+            // 
+            // labelPrice
+            // 
+            this.labelPrice.AutoSize = true;
+            this.labelPrice.Location = new System.Drawing.Point(12, 75);
+            this.labelPrice.Name = "labelPrice";
+            this.labelPrice.Size = new System.Drawing.Size(86, 20);
+            this.labelPrice.TabIndex = 7;
+            this.labelPrice.Text = "Стоимость:";
+            // 
+            // textBoxPrice
+            // 
+            this.textBoxPrice.Enabled = false;
+            this.textBoxPrice.Location = new System.Drawing.Point(110, 75);
+            this.textBoxPrice.Name = "textBoxPrice";
+            this.textBoxPrice.Size = new System.Drawing.Size(231, 27);
+            this.textBoxPrice.TabIndex = 8;
+            // 
+            // textBoxName
+            // 
+            this.textBoxName.Location = new System.Drawing.Point(110, 27);
+            this.textBoxName.Name = "textBoxName";
+            this.textBoxName.Size = new System.Drawing.Size(368, 27);
+            this.textBoxName.TabIndex = 9;
+            // 
+            // ColumnId
+            // 
+            this.ColumnId.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
+            this.ColumnId.HeaderText = "Id";
+            this.ColumnId.MinimumWidth = 6;
+            this.ColumnId.Name = "ColumnId";
+            this.ColumnId.Visible = false;
+            // 
+            // ColumnComponent
+            // 
+            this.ColumnComponent.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
+            this.ColumnComponent.HeaderText = "Компонент";
+            this.ColumnComponent.MinimumWidth = 6;
+            this.ColumnComponent.Name = "ColumnComponent";
+            // 
+            // ColumnCount
+            // 
+            this.ColumnCount.AutoSizeMode = System.Windows.Forms.DataGridViewAutoSizeColumnMode.Fill;
+            this.ColumnCount.HeaderText = "Количество";
+            this.ColumnCount.MinimumWidth = 100;
+            this.ColumnCount.Name = "ColumnCount";
+            // 
+            // FormComputer
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.textBoxName);
+            this.Controls.Add(this.textBoxPrice);
+            this.Controls.Add(this.labelName);
+            this.Controls.Add(this.labelPrice);
+            this.Controls.Add(this.buttonSave);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.groupBox1);
+            this.Name = "FormComputer";
+            this.Text = "Изделие";
+            this.Load += new System.EventHandler(this.FormСomputer_Load);
+            this.groupBox1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private GroupBox groupBox1;
+        private Button buttonUpd;
+        private Button buttonDel;
+        private Button buttonRef;
+        private Button buttonAdd;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private Label labelName;
+        private Label labelPrice;
+        private TextBox textBoxPrice;
+        private TextBox textBoxName;
+        private DataGridView dataGridView;
+        private DataGridViewTextBoxColumn ColumnId;
+        private DataGridViewTextBoxColumn ColumnComponent;
+        private DataGridViewTextBoxColumn ColumnCount;
+    }
+}

ComputersShop/ComputersShopView/FormComputer.cs

@@ -0,0 +1,223 @@
+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;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using ComputersShopDataModels.Models;
+using Microsoft.Extensions.Logging;
+
+
+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 FormСomputer_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка изделия");
+                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 изделия");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка компонент изделия");
+            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 компонент изделия");
+                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 изделия");
+            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 изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+        private double CalcPrice()
+        {
+            double price = 0;
+            foreach (var elem in _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="ColumnComponent.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnCount.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.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.labelComponent = new System.Windows.Forms.Label();
+            this.labelCount = new System.Windows.Forms.Label();
+            this.textBoxCount = new System.Windows.Forms.TextBox();
+            this.comboBoxComponent = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(190, 136);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(94, 29);
+            this.buttonSave.TabIndex = 0;
+            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(306, 136);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
+            this.buttonCancel.TabIndex = 1;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+            // 
+            // labelComponent
+            // 
+            this.labelComponent.AutoSize = true;
+            this.labelComponent.Location = new System.Drawing.Point(12, 28);
+            this.labelComponent.Name = "labelComponent";
+            this.labelComponent.Size = new System.Drawing.Size(91, 20);
+            this.labelComponent.TabIndex = 2;
+            this.labelComponent.Text = "Компонент:";
+            // 
+            // labelCount
+            // 
+            this.labelCount.AutoSize = true;
+            this.labelCount.Location = new System.Drawing.Point(12, 85);
+            this.labelCount.Name = "labelCount";
+            this.labelCount.Size = new System.Drawing.Size(93, 20);
+            this.labelCount.TabIndex = 3;
+            this.labelCount.Text = "Количество:";
+            // 
+            // textBoxCount
+            // 
+            this.textBoxCount.Location = new System.Drawing.Point(111, 85);
+            this.textBoxCount.Name = "textBoxCount";
+            this.textBoxCount.Size = new System.Drawing.Size(263, 27);
+            this.textBoxCount.TabIndex = 4;
+            // 
+            // comboBoxComponent
+            // 
+            this.comboBoxComponent.FormattingEnabled = true;
+            this.comboBoxComponent.Location = new System.Drawing.Point(111, 25);
+            this.comboBoxComponent.Name = "comboBoxComponent";
+            this.comboBoxComponent.Size = new System.Drawing.Size(263, 28);
+            this.comboBoxComponent.TabIndex = 5;
+            // 
+            // FormComputerComponent
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(412, 177);
+            this.Controls.Add(this.comboBoxComponent);
+            this.Controls.Add(this.textBoxCount);
+            this.Controls.Add(this.labelCount);
+            this.Controls.Add(this.labelComponent);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Name = "FormComputerComponent";
+            this.Text = "Компонент изделия";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Button buttonSave;
+        private Button buttonCancel;
+        private Label labelComponent;
+        private Label labelCount;
+        private TextBox textBoxCount;
+        private ComboBox comboBoxComponent;
+    }
+}

ComputersShop/ComputersShopView/FormComputerComponent.cs

@@ -0,0 +1,92 @@
+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;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.ViewModels;
+using ComputersShopDataModels.Models;
+
+
+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 +1,117 @@
+using System.Windows.Forms;
+
+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.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(1, 0);
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersWidth = 51;
+            this.dataGridView.RowTemplate.Height = 29;
+            this.dataGridView.Size = new System.Drawing.Size(517, 451);
+            this.dataGridView.TabIndex = 0;
+            // 
+            // buttonAdd
+            // 
+            this.buttonAdd.Location = new System.Drawing.Point(542, 29);
+            this.buttonAdd.Name = "buttonAdd";
+            this.buttonAdd.Size = new System.Drawing.Size(119, 29);
+            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(542, 79);
+            this.buttonUpd.Name = "buttonUpd";
+            this.buttonUpd.Size = new System.Drawing.Size(119, 29);
+            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(542, 131);
+            this.buttonDel.Name = "buttonDel";
+            this.buttonDel.Size = new System.Drawing.Size(119, 29);
+            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(542, 175);
+            this.buttonRef.Name = "buttonRef";
+            this.buttonRef.Size = new System.Drawing.Size(119, 29);
+            this.buttonRef.TabIndex = 4;
+            this.buttonRef.Text = "Обновить";
+            this.buttonRef.UseVisualStyleBackColor = true;
+            this.buttonRef.Click += new System.EventHandler(this.ButtonRef_Click);
+            // 
+            // FormComputers
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(683, 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 buttonAdd;
+        private Button buttonUpd;
+        private Button buttonDel;
+        private Button buttonRef;
+    }
+}

ComputersShop/ComputersShopView/FormComputers.cs

@@ -0,0 +1,111 @@
+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;
+using Microsoft.Extensions.Logging;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+
+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("Computers loading");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Computers loading error");
+                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("Deletion of computer");
+                    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, "Computer deletion error");
+                        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 +1,144 @@
+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.buttonSave = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.label1 = new System.Windows.Forms.Label();
+            this.labelCount = new System.Windows.Forms.Label();
+            this.label3 = new System.Windows.Forms.Label();
+            this.textBoxCount = new System.Windows.Forms.TextBox();
+            this.textBoxSum = new System.Windows.Forms.TextBox();
+            this.comboBoxComputer = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // buttonSave
+            // 
+            this.buttonSave.Location = new System.Drawing.Point(269, 158);
+            this.buttonSave.Name = "buttonSave";
+            this.buttonSave.Size = new System.Drawing.Size(94, 29);
+            this.buttonSave.TabIndex = 0;
+            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(369, 158);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
+            this.buttonCancel.TabIndex = 1;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(12, 18);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(71, 20);
+            this.label1.TabIndex = 2;
+            this.label1.Text = "Изделие:";
+            // 
+            // labelCount
+            // 
+            this.labelCount.AutoSize = true;
+            this.labelCount.Location = new System.Drawing.Point(12, 62);
+            this.labelCount.Name = "labelCount";
+            this.labelCount.Size = new System.Drawing.Size(93, 20);
+            this.labelCount.TabIndex = 3;
+            this.labelCount.Text = "Количество:";
+            // 
+            // label3
+            // 
+            this.label3.AutoSize = true;
+            this.label3.Location = new System.Drawing.Point(12, 107);
+            this.label3.Name = "label3";
+            this.label3.Size = new System.Drawing.Size(58, 20);
+            this.label3.TabIndex = 4;
+            this.label3.Text = "Сумма:";
+            // 
+            // textBoxCount
+            // 
+            this.textBoxCount.Location = new System.Drawing.Point(111, 62);
+            this.textBoxCount.Name = "textBoxCount";
+            this.textBoxCount.Size = new System.Drawing.Size(318, 27);
+            this.textBoxCount.TabIndex = 5;
+            this.textBoxCount.TextChanged += new System.EventHandler(this.TextBoxCount_TextChanged);
+            // 
+            // textBoxSum
+            // 
+            this.textBoxSum.Location = new System.Drawing.Point(111, 104);
+            this.textBoxSum.Name = "textBoxSum";
+            this.textBoxSum.ReadOnly = true;
+            this.textBoxSum.Size = new System.Drawing.Size(318, 27);
+            this.textBoxSum.TabIndex = 6;
+            // 
+            // comboBoxComputer
+            // 
+            this.comboBoxComputer.FormattingEnabled = true;
+            this.comboBoxComputer.Location = new System.Drawing.Point(111, 15);
+            this.comboBoxComputer.Name = "comboBoxComputer";
+            this.comboBoxComputer.Size = new System.Drawing.Size(318, 28);
+            this.comboBoxComputer.TabIndex = 7;
+            // 
+            // FormCreateOrder
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(475, 199);
+            this.Controls.Add(this.comboBoxComputer);
+            this.Controls.Add(this.textBoxSum);
+            this.Controls.Add(this.textBoxCount);
+            this.Controls.Add(this.label3);
+            this.Controls.Add(this.labelCount);
+            this.Controls.Add(this.label1);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonSave);
+            this.Name = "FormCreateOrder";
+            this.Text = "Заказ";
+            this.Load += new System.EventHandler(this.FormCreateOrder_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Button buttonSave;
+        private Button buttonCancel;
+        private Label label1;
+        private Label labelCount;
+        private Label label3;
+        private TextBox textBoxCount;
+        private TextBox textBoxSum;
+        private ComboBox comboBoxComputer;
+    }
+}

ComputersShop/ComputersShopView/FormCreateOrder.cs

@@ -0,0 +1,130 @@
+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;
+using ComputersShopContracts.BindingModels;
+using ComputersShopContracts.BusinessLogicsContracts;
+using ComputersShopContracts.SearchModels;
+using Microsoft.Extensions.Logging;
+
+
+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 изделий для заказа");
+            try
+            {
+                var computerList = _logicC.ReadList(null);
+                if (computerList != null)
+                {
+                    comboBoxComputer.DataSource = computerList;
+                    comboBoxComputer.DisplayMember = "ComputerName";
+                    comboBoxComputer.ValueMember = "Id";
+                    comboBoxComputer.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка при загрузке изделиц для заказа");
+                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 изделие", "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();
+        }
+    }
+}