Изменил(а) на 'SoftwareInstallation/SoftwareInstallation/FormPackages.Designer.cs'

revert fix

SoftwareInstallation/AbstractShopDatabaseImplement/AbstractSoftwareInstallationDatabaseImplement.csproj

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

SoftwareInstallation/AbstractSoftwareInstallationContracts/BindingModels/PackageBindingModel.cs

@@ -13,6 +13,6 @@ namespace AbstractSoftwareInstallationContracts.BindingModels
         public string PackageName { get; set; } = string.Empty;
         public double Price { get; set; }
         public Dictionary<int, (ISoftwareModel, int)> PackageSoftware{get;set;} = new();
-
+        public object PackageSoftwares { get; set; }
     }
-}
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/AbstractSoftwareInstallationDatabase.cs

@@ -0,0 +1,28 @@
+using AbstractPackageInstallationDatabaseImplement.Models;
+using AbstractSoftwareInstallationDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement
+{
+    public class AbstractSoftwareInstallationDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder
+optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-QA8P9OJ;Initial Catalog=SogtwareInstallation;Integrated Security=True;MultipleActiveResultSets=True;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Software> Softwares { set; get; }
+        public virtual DbSet<Package> Packages { set; get; }
+        public virtual DbSet<PackageSoftware> PackageSoftwares { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/AbstractSoftwareInstallationDatabaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\AbstractSoftwareInstallationContracts\AbstractSoftwareInstallationContracts.csproj" />
+    <ProjectReference Include="..\AbstractSoftwareInstallationDataModels\AbstractSoftwareInstallationDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,91 @@
+using AbstractPackageInstallationDatabaseImplement.Models;
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.SearchModels;
+using AbstractSoftwareInstallationContracts.StoragesContracts;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Orders.Include(x => x.Package).FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Orders
+            .Where(x => x.Id == model.Id)
+            .Include(x => x.Package)
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Orders
+                .Include(x => x.Package)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return context.Orders.Include(x => x.Package).FirstOrDefault(x => x.Id == newOrder.Id)?.GetViewModel;
+
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            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.Package).FirstOrDefault(x => x.Id == order.Id)?.GetViewModel;
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Implements/PackageStorage.cs

@@ -0,0 +1,113 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.SearchModels;
+using AbstractSoftwareInstallationContracts.StoragesContracts;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Implements
+{
+    public class PackageStorage : IPackageStorage
+    {
+        public List<PackageViewModel> GetFullList()
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Packages
+                .Include(x => x.Softwares)
+                .ThenInclude(x => x.Software)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<PackageViewModel> GetFilteredList(PackageSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PackageName))
+            {
+                return new();
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Packages
+                .Include(x => x.Softwares)
+                .ThenInclude(x => x.Software)
+                .Where(x => x.PackageName.Contains(model.PackageName))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public PackageViewModel? GetElement(PackageSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PackageName) &&
+            !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Packages
+                .Include(x => x.Softwares)
+                .ThenInclude(x => x.Software)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.PackageName)
+                        && x.PackageName == model.PackageName)
+                    || (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+
+        public PackageViewModel? Insert(PackageBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            var newPackage = Package.Create(context, model);
+            if (newPackage == null)
+            {
+                return null;
+            }
+            context.Packages.Add(newPackage);
+            context.SaveChanges();
+            return newPackage.GetViewModel;
+        }
+
+        public PackageViewModel? Update(PackageBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var Package = context.Packages.FirstOrDefault(rec => rec.Id == model.Id);
+                if (Package == null)
+                {
+                    return null;
+                }
+                Package.Update(model);
+                context.SaveChanges();
+                Package.UpdateSoftwares(context, model);
+                transaction.Commit();
+                return Package.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+
+        public PackageViewModel? Delete(PackageBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            var element = context.Packages
+                .Include(x => x.Softwares)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Packages.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Implements/SoftwareStorage.cs

@@ -0,0 +1,90 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.SearchModels;
+using AbstractSoftwareInstallationContracts.StoragesContracts;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Implements
+{
+    public class SoftwareStorage : ISoftwareStorage
+    {
+        public List<SoftwareViewModel> GetFullList()
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Softwares
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<SoftwareViewModel> GetFilteredList(SoftwareSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SoftwareName))
+            {
+                return new();
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Softwares
+                .Where(x => x.SoftwareName.Contains(model.SoftwareName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public SoftwareViewModel? GetElement(SoftwareSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SoftwareName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            return context.Softwares
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.SoftwareName)
+                        && x.SoftwareName == model.SoftwareName)
+                    || (model.Id.HasValue && x.Id == model.Id))
+                ?.GetViewModel;
+        }
+
+        public SoftwareViewModel? Insert(SoftwareBindingModel model)
+        {
+            var newSoftware = Software.Create(model);
+            if (newSoftware == null)
+            {
+                return null;
+            }
+            using var context = new AbstractSoftwareInstallationDatabase();
+            context.Softwares.Add(newSoftware);
+            context.SaveChanges();
+            return newSoftware.GetViewModel;
+        }
+
+        public SoftwareViewModel? Update(SoftwareBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            var Software = context.Softwares.FirstOrDefault(x => x.Id == model.Id);
+            if (Software == null)
+            {
+                return null;
+            }
+            Software.Update(model);
+            context.SaveChanges();
+            return Software.GetViewModel;
+        }
+
+        public SoftwareViewModel? Delete(SoftwareBindingModel model)
+        {
+            using var context = new AbstractSoftwareInstallationDatabase();
+            var element = context.Softwares.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Softwares.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Migrations/20230419141439_Init.Designer.cs

@@ -0,0 +1,171 @@
+// <auto-generated />
+using System;
+using AbstractSoftwareInstallationDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AbstractSoftwareInstallationDatabase))]
+    [Migration("20230419141439_Init")]
+    partial class Init
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("AbstractPackageInstallationDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("PackageId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PackageId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Package", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PackageName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Packages");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.PackageSoftware", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PackageId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SoftwareId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PackageId");
+
+                    b.HasIndex("SoftwareId");
+
+                    b.ToTable("PackageSoftwares");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Software", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.Property<string>("SoftwareName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Softwares");
+                });
+
+            modelBuilder.Entity("AbstractPackageInstallationDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AbstractSoftwareInstallationDatabaseImplement.Models.Package", "Package")
+                        .WithMany("Orders")
+                        .HasForeignKey("PackageId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Package");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.PackageSoftware", b =>
+                {
+                    b.HasOne("AbstractSoftwareInstallationDatabaseImplement.Models.Package", "Package")
+                        .WithMany("Softwares")
+                        .HasForeignKey("PackageId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AbstractSoftwareInstallationDatabaseImplement.Models.Software", "Software")
+                        .WithMany("PackageSoftwares")
+                        .HasForeignKey("SoftwareId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Package");
+
+                    b.Navigation("Software");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Package", b =>
+                {
+                    b.Navigation("Orders");
+
+                    b.Navigation("Softwares");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Software", b =>
+                {
+                    b.Navigation("PackageSoftwares");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Migrations/20230419141439_Init.cs

@@ -0,0 +1,125 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Init : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Packages",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    PackageName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Packages", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Softwares",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    SoftwareName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Softwares", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    PackageId = 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_Packages_PackageId",
+                        column: x => x.PackageId,
+                        principalTable: "Packages",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PackageSoftwares",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    PackageId = table.Column<int>(type: "int", nullable: false),
+                    SoftwareId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PackageSoftwares", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PackageSoftwares_Packages_PackageId",
+                        column: x => x.PackageId,
+                        principalTable: "Packages",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PackageSoftwares_Softwares_SoftwareId",
+                        column: x => x.SoftwareId,
+                        principalTable: "Softwares",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_PackageId",
+                table: "Orders",
+                column: "PackageId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PackageSoftwares_PackageId",
+                table: "PackageSoftwares",
+                column: "PackageId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PackageSoftwares_SoftwareId",
+                table: "PackageSoftwares",
+                column: "SoftwareId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "PackageSoftwares");
+
+            migrationBuilder.DropTable(
+                name: "Packages");
+
+            migrationBuilder.DropTable(
+                name: "Softwares");
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Migrations/AbstractSoftwareInstallationDatabaseModelSnapshot.cs

@@ -0,0 +1,168 @@
+// <auto-generated />
+using System;
+using AbstractSoftwareInstallationDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Migrations
+{
+    [DbContext(typeof(AbstractSoftwareInstallationDatabase))]
+    partial class AbstractSoftwareInstallationDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("AbstractPackageInstallationDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("PackageId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PackageId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Package", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PackageName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Packages");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.PackageSoftware", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("PackageId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("SoftwareId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PackageId");
+
+                    b.HasIndex("SoftwareId");
+
+                    b.ToTable("PackageSoftwares");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Software", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.Property<string>("SoftwareName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Softwares");
+                });
+
+            modelBuilder.Entity("AbstractPackageInstallationDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("AbstractSoftwareInstallationDatabaseImplement.Models.Package", "Package")
+                        .WithMany("Orders")
+                        .HasForeignKey("PackageId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Package");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.PackageSoftware", b =>
+                {
+                    b.HasOne("AbstractSoftwareInstallationDatabaseImplement.Models.Package", "Package")
+                        .WithMany("Softwares")
+                        .HasForeignKey("PackageId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("AbstractSoftwareInstallationDatabaseImplement.Models.Software", "Software")
+                        .WithMany("PackageSoftwares")
+                        .HasForeignKey("SoftwareId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Package");
+
+                    b.Navigation("Software");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Package", b =>
+                {
+                    b.Navigation("Orders");
+
+                    b.Navigation("Softwares");
+                });
+
+            modelBuilder.Entity("AbstractSoftwareInstallationDatabaseImplement.Models.Software", b =>
+                {
+                    b.Navigation("PackageSoftwares");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Models/Order.cs

@@ -0,0 +1,73 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDatabaseImplement;
+using AbstractSoftwareInstallationDatabaseImplement.Models;
+using AbstractSoftwareInstallationDataModels;
+using AbstractSoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractPackageInstallationDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int PackageId { 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 Package Package { get; set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order
+            {
+                PackageId = model.PackageId,
+                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()
+        {
+            Id = Id,
+            PackageId = PackageId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            PackageName = Package.PackageName
+        };
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Models/Package.cs

@@ -0,0 +1,107 @@
+using AbstractPackageInstallationDatabaseImplement.Models;
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDatabaseImplement.Models;
+using AbstractSoftwareInstallationDataModels;
+using AbstractSoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Models
+{
+    public class Package : IPackageModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string PackageName { get; private set; } = string.Empty;
+        [Required]
+        public double Price { get; private set; }
+
+        private Dictionary<int, (ISoftwareModel, int)>? _packageSoftwares = null;
+
+        [NotMapped]
+        public Dictionary<int, (ISoftwareModel, int)> PackageSoftware
+        {
+            get
+            {
+                if (_packageSoftwares == null)
+                {
+                    _packageSoftwares = Softwares.ToDictionary(recPC => recPC.SoftwareId, recPC => (recPC.Software as ISoftwareModel, recPC.Count));
+                }
+                return _packageSoftwares;
+            }
+        }
+
+        [ForeignKey("PackageId")]
+        public virtual List<PackageSoftware> Softwares { get; set; } = new();
+        [ForeignKey("PackageId")]
+        public virtual List<Order> Orders { get; set; } = new();
+
+
+        public static Package? Create(AbstractSoftwareInstallationDatabase context, PackageBindingModel model)
+        {
+            var Softwares = context.Softwares;
+
+            return new Package()
+            {
+                Id = model.Id,
+                PackageName = model.PackageName,
+                Price = model.Price,
+                Softwares = model.PackageSoftware.Select(x => new PackageSoftware
+                {
+                    Software = context.Softwares.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(PackageBindingModel model)
+        {
+            PackageName = model.PackageName;
+            Price = model.Price;
+        }
+        public PackageViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PackageName = PackageName,
+            Price = Price,
+            PackageSoftware = PackageSoftware
+        };
+
+        public void UpdateSoftwares(AbstractSoftwareInstallationDatabase context, PackageBindingModel model)
+        {
+            var packageSoftwares = context.PackageSoftwares
+                .Where(rec => rec.PackageId == model.Id).ToList();
+            if (packageSoftwares != null && packageSoftwares.Count > 0)
+            {   // удалили те, которых нет в модели
+                context.PackageSoftwares.RemoveRange(packageSoftwares.Where(rec => !model.PackageSoftware.ContainsKey(rec.SoftwareId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateSoftware in packageSoftwares)
+                {
+                    updateSoftware.Count = model.PackageSoftware[updateSoftware.SoftwareId].Item2;
+                    model.PackageSoftware.Remove(updateSoftware.SoftwareId);
+                }
+                context.SaveChanges();
+            }
+            var package = context.Packages.First(x => x.Id == Id);
+            foreach (var pc in model.PackageSoftware)
+            {
+                context.PackageSoftwares.Add(new PackageSoftware
+                {
+                    Package = package,
+                    Software = context.Softwares.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _packageSoftwares = null;
+        }
+
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Models/PackageSoftware.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Models
+{
+    public class PackageSoftware
+    {
+        public int Id { get; set; }
+        [Required]
+        public int PackageId { get; set; }
+        [Required]
+        public int SoftwareId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Software Software { get; set; } = new();
+        public virtual Package Package { get; set; } = new();
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationDatabaseImplement/Models/Software.cs

@@ -0,0 +1,53 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationDatabaseImplement.Models
+{
+    public class Software : ISoftwareModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string SoftwareName { get; private set; } = String.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("SoftwareId")]
+        public virtual List<PackageSoftware> PackageSoftwares { get; set; } = new();
+        public static Software? Create(SoftwareBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Software()
+            {
+                Id = model.Id,
+                SoftwareName = model.SoftwareName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(SoftwareBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            SoftwareName = model.SoftwareName;
+            Cost = model.Cost;
+        }
+        public SoftwareViewModel GetViewModel => new()
+        {
+            Id = Id,
+            SoftwareName = SoftwareName,
+            Cost = Cost
+        };
+
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/AbstractSoftwareInstallationFileImplement.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="..\AbstractSoftwareInstallationContracts\AbstractSoftwareInstallationContracts.csproj" />
+    <ProjectReference Include="..\AbstractSoftwareInstallationDataModels\AbstractSoftwareInstallationDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/DataFileSingleton.cs

@@ -0,0 +1,50 @@
+using AbstractSoftwareInstallationFileImplement.Models;
+using System.Xml.Linq;
+
+namespace AbstractSoftwareInstallationFileImplement
+{
+    internal class DataFileSingleton
+    {
+
+        private static DataFileSingleton? instance;
+        private readonly string SoftwareFileName = "Software.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string PackageFileName = "Package.xml";
+        public List<Software> Softwares { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Package> Packages { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveSoftwares() => SaveData(Softwares, SoftwareFileName, "Softwares", x => x.GetXElement);
+        public void SavePackages() => SaveData(Packages, PackageFileName, "Packages", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Softwares = LoadData(SoftwareFileName, "Software", x => Software.Create(x)!)!;
+            Packages = LoadData(PackageFileName, "Package", x => Package.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);
+            }
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,91 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.SearchModels;
+using AbstractSoftwareInstallationContracts.StoragesContracts;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationFileImplement.Models;
+
+namespace AbstractSoftwareInstallationFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            return GetViewModel(source.Orders.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id)));
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            return source.Orders
+                .Where(x => x.Id == model.Id)
+                .Select(x => GetViewModel(x))
+                .ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders.Select(x => GetViewModel(x)).ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+            return GetViewModel(newOrder);
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            source.Orders.Remove(order);
+            source.SaveOrders();
+            return GetViewModel(order);
+        }
+
+        private OrderViewModel GetViewModel(Order order)
+        {
+            var viewModel = order.GetViewModel;
+            var package = source.Packages.FirstOrDefault(x => x.Id == order.PackageId);
+            if (package != null)
+            {
+                viewModel.PackageName = package.PackageName;
+            }
+            return viewModel;
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/Implements/PackageStorage.cs

@@ -0,0 +1,89 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.SearchModels;
+using AbstractSoftwareInstallationContracts.StoragesContracts;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationFileImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AbstractSoftwareInstallationFileImplement.Implements
+{
+    public class PackageStorage : IPackageStorage
+    {
+        private readonly DataFileSingleton source;
+
+        public PackageStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+
+        public PackageViewModel? GetElement(PackageSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PackageName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Packages
+            .FirstOrDefault(x => 
+            (!string.IsNullOrEmpty(model.PackageName) 
+            && x.PackageName == model.PackageName) 
+            || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+
+        public List<PackageViewModel> GetFilteredList(PackageSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PackageName))
+            {
+                return new();
+            }
+            return source.Packages
+                .Where(x => x.PackageName.Contains(model.PackageName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<PackageViewModel> GetFullList()
+        {
+            return source.Packages.Select(x => x.GetViewModel).ToList();
+        }
+
+        public PackageViewModel? Insert(PackageBindingModel model)
+        {
+            model.Id = source.Packages.Count > 0 ? source.Packages.Max(x => x.Id) + 1 : 1;
+            var newPackage = Package.Create(model);
+            if (newPackage == null)
+            {
+                return null;
+            }
+            source.Packages.Add(newPackage);
+            source.SavePackages();
+            return newPackage.GetViewModel;
+        }
+
+        public PackageViewModel? Update(PackageBindingModel model)
+        {
+            var Package = source.Packages.FirstOrDefault(x => x.Id == model.Id);
+            if (Package == null)
+            {
+                return null;
+            }
+            Package.Update(model);
+            source.SavePackages();
+            return Package.GetViewModel;
+        }
+        public PackageViewModel? Delete(PackageBindingModel model)
+        {
+            var Package = source.Packages.FirstOrDefault(x => x.Id == model.Id);
+            if (Package == null)
+            {
+                return null;
+            }
+            source.Packages.Remove(Package);
+            source.SavePackages();
+            return Package.GetViewModel;
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/Implements/SoftwareStorage.cs

@@ -0,0 +1,77 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.SearchModels;
+using AbstractSoftwareInstallationContracts.StoragesContracts;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationFileImplement.Models;
+
+namespace AbstractSoftwareInstallationFileImplement.Implements
+{
+    public class SoftwareStorage : ISoftwareStorage
+    {
+        private readonly DataFileSingleton _source;
+        public SoftwareStorage()
+        {
+            _source = DataFileSingleton.GetInstance();
+        }
+        public List<SoftwareViewModel> GetFullList()
+        {
+            return _source.Softwares.Select(x => x.GetViewModel).ToList();
+        }
+        public List<SoftwareViewModel> GetFilteredList(SoftwareSearchModel
+       model)
+        {
+            if (string.IsNullOrEmpty(model.SoftwareName))
+            {
+                return new();
+            }
+            return _source.Softwares.Where(x => x.SoftwareName.Contains(model.SoftwareName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public SoftwareViewModel? GetElement(SoftwareSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SoftwareName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return _source.Softwares.FirstOrDefault(x => 
+            (!string.IsNullOrEmpty(model.SoftwareName) 
+            && x.SoftwareName == model.SoftwareName) 
+            || (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public SoftwareViewModel? Insert(SoftwareBindingModel model)
+        {
+            model.Id = _source.Softwares.Count > 0 ? _source.Softwares.Max(x => x.Id) + 1 : 1;
+            var newSoftware = Software.Create(model);
+            if (newSoftware == null)
+            {
+                return null;
+            }
+            _source.Softwares.Add(newSoftware);
+            _source.SaveSoftwares();
+            return newSoftware.GetViewModel;
+        }
+        public SoftwareViewModel? Update(SoftwareBindingModel model)
+        {
+            var software = _source.Softwares.FirstOrDefault(x => x.Id == model.Id);
+            if (software == null)
+            {
+                return null;
+            }
+            software.Update(model);
+            _source.SaveSoftwares();
+            return software.GetViewModel;
+        }
+        public SoftwareViewModel? Delete(SoftwareBindingModel model)
+        {
+            var software = _source.Softwares.FirstOrDefault(x => x.Id == model.Id);
+            if (software == null)
+            {
+                return null;
+            }
+            _source.Softwares.Remove(software);
+            _source.SaveSoftwares();
+            return software.GetViewModel;
+        }
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/Models/Order.cs

@@ -0,0 +1,90 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDataModels;
+using AbstractSoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractSoftwareInstallationFileImplement.Models
+{
+    internal class Order : IOrderModel
+    {
+        public int PackageId { get; private set; }
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public int Id { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null) return null;
+            return new Order
+            {
+                PackageId = model.PackageId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                Id = model.Id,
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null) return null;
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PackageId = Convert.ToInt32(element.Element("PackageId")!.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,
+            PackageId = PackageId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+        public XElement GetXElement => new(
+            "Order",
+             new XAttribute("Id", Id),
+             new XElement("PackageId", PackageId.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())
+        );
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/Models/Package.cs

@@ -0,0 +1,107 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractSoftwareInstallationFileImplement.Models
+{
+    internal class Package : IPackageModel
+    {
+        public string PackageName { get; private set; } = string.Empty;
+
+        public double Price { get; private set; }
+
+        public int Id { get; private set; }
+
+        public Dictionary<int, int> Softwares { get; private set; } = new();
+
+        private Dictionary<int, (ISoftwareModel, int)>? _PackageSoftware = null;
+        public Dictionary<int, (ISoftwareModel, int)> PackageSoftware
+        {
+            get
+            {
+                if (_PackageSoftware == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _PackageSoftware = Softwares.ToDictionary(
+                        x => x.Key,
+                        y => ((source.Softwares.FirstOrDefault(z => z.Id == y.Key) as ISoftwareModel)!, y.Value)
+                    );
+                }
+                return _PackageSoftware;
+            }
+        }
+
+
+        public static Package? Create(PackageBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Package()
+            {
+                Id = model.Id,
+                PackageName = model.PackageName,
+                Price = model.Price,
+                Softwares = model.PackageSoftware.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+
+        public static Package? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Package()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PackageName = element.Element("PackageName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Softwares = element.Element("PackageSoftware")!.Elements("PackageSoftware").ToDictionary(
+                    x => Convert.ToInt32(x.Element("Key")?.Value),
+                    x => Convert.ToInt32(x.Element("Value")?.Value)
+                )
+            };
+        }
+
+
+        public void Update(PackageBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PackageName = model.PackageName;
+            Price = model.Price;
+            Softwares = model.PackageSoftware.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _PackageSoftware = null;
+        }
+        public PackageViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PackageName = PackageName,
+            Price = Price,
+            PackageSoftware = PackageSoftware
+        };
+
+        public XElement GetXElement => new(
+            "Package",
+             new XAttribute("Id", Id),
+             new XElement("PackageName", PackageName),
+             new XElement("Price", Price.ToString()),
+             new XElement("PackageSoftware", Softwares.Select(x =>
+             new XElement("PackageSoftware",
+             new XElement("Key", x.Key),
+             new XElement("Value", x.Value)))
+            .ToArray()));
+
+
+    }
+}

SoftwareInstallation/AbstractSoftwareInstallationFileImplement/Models/Software.cs

@@ -0,0 +1,64 @@
+using AbstractSoftwareInstallationContracts.BindingModels;
+using AbstractSoftwareInstallationContracts.ViewModels;
+using AbstractSoftwareInstallationDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml.Linq;
+
+namespace AbstractSoftwareInstallationFileImplement.Models
+{
+    internal class Software : ISoftwareModel
+    {
+        public int Id { get; private set; }
+        public string SoftwareName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Software? Create(SoftwareBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Software()
+            {
+                Id = model.Id,
+                SoftwareName = model.SoftwareName,
+                Cost = model.Cost
+            };
+        }
+        public static Software? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Software()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                SoftwareName = element.Element("SoftwareName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(SoftwareBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            SoftwareName = model.SoftwareName;
+            Cost = model.Cost;
+        }
+        public SoftwareViewModel GetViewModel => new()
+        {
+            Id = Id,
+            SoftwareName = SoftwareName,
+            Cost = Cost
+        };
+        public XElement GetXElement => new("Software",
+            new XAttribute("Id", Id),
+            new XElement("SoftwareName", SoftwareName),
+            new XElement("Cost", Cost.ToString()));
+    }
+}

SoftwareInstallation/SoftwareInstallation/FormPackage.Designer.cs

@@ -201,7 +201,7 @@
             this.groupBoxSoftware.ResumeLayout(false);
             this.ResumeLayout(false);
             this.PerformLayout();
-            this.Load += new System.EventHandler(this.FormPackage_Load);
+
         }
 
         #endregion

SoftwareInstallation/SoftwareInstallation/FormPackages.Designer.cs

@@ -108,7 +108,7 @@
             this.Controls.Add(this.buttonEdit);
             this.Controls.Add(this.buttonAdd);
             this.Name = "FormPackages";
-            this.Text = "FormPackages";
+            this.Text = "Пакеты";
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
             this.ResumeLayout(false);