еще одна сохра для не сохр. файла

Hotel/HotelBusinessLogic/BusinessLogics/BookingLogic.cs

@@ -74,7 +74,20 @@ namespace HotelBusinessLogic.BusinessLogics
             }
             return true;
         }
+        public bool TakeBookingInWork(BookingBindingModel model)
+        {
+            return ChangeStatus(model, AcceptanceStatus.Обработка);
+        }
 
+        public bool FinishBooking(BookingBindingModel model)
+        {
+            return ChangeStatus(model, AcceptanceStatus.Принимается);
+        }
+
+        public bool DeliveryBooking(BookingBindingModel model)
+        {
+            return ChangeStatus(model, AcceptanceStatus.Принят);
+        }
         private void CheckModel(BookingBindingModel model, bool withParams = true)
         {
             if (model == null)
@@ -95,5 +108,20 @@ namespace HotelBusinessLogic.BusinessLogics
             }
             
         }
+        private bool ChangeStatus(BookingBindingModel model, AcceptanceStatus newStatus)
+        {
+            CheckModel(model, false);
+            if (model.Status + 1 != newStatus)
+            {
+                return false;
+            }
+            model.Status = newStatus;
+            if (_bookingStorage.Update(model) == null)
+            {
+                model.Status--;
+                return false;
+            }
+            return true;
+        }
     }
 }

Hotel/HotelBusinessLogic/BusinessLogics/ClientLogic.cs

@@ -96,10 +96,6 @@ namespace HotelBusinessLogic.BusinessLogics
             {
                 throw new ArgumentNullException("Нет номера телефона", nameof(model.PhoneNumber));
             }
-            if (string.IsNullOrEmpty(model.Password))
-            {
-                throw new ArgumentNullException("Нет пароля", nameof(model.Password));
-            }
 
         }
     }

Hotel/HotelBusinessLogic/BusinessLogics/RoomLogic.cs

@@ -14,10 +14,12 @@ namespace HotelBusinessLogic.BusinessLogics
     public class RoomLogic : IRoomLogic
     {
         private readonly IRoomStorage _roomStorage;
+        private readonly IWorkerStorage _workerStorage;
 
-        public RoomLogic(IRoomStorage roomStorage)
+        public RoomLogic(IRoomStorage roomStorage, IWorkerStorage workerStorage)
         {
             _roomStorage = roomStorage;
+            _workerStorage = workerStorage;
         }
         public RoomViewModel? ReadElement(RoomSearchModel model)
         {
@@ -108,7 +110,33 @@ namespace HotelBusinessLogic.BusinessLogics
             {
                 throw new ArgumentNullException("нет поля цены", nameof(model.Cost));
             }
+            var elementNumber = _roomStorage.GetElement(new RoomSearchModel
+            {
+                Number = model.Number
+            });
+            if (elementNumber != null && elementNumber.Id != model.Id)
+            {
+                throw new InvalidOperationException("Такой номер уже существует");
+            }
+        }
 
+        public bool ProvercaMade(RoomBindingModel model)
+        {
+            CheckModel(model, false);
+            var room = ReadElement(new RoomSearchModel { Number = model.Number});
+            var workers = _workerStorage.GetFullList();
+            if(room == null) return false;
+            foreach (var item in workers) {
+                if (room.WorkerId == item.Id)
+                {
+                    if(item.PostName == "Горничная" || item.PostName == "Горничный")
+                    {
+                        return true;
+                    }
+                }
+            }
+            
+            return false;
         }
     }
 }

Hotel/HotelContracts/BindingModels/BookingBindingModel.cs

@@ -19,10 +19,10 @@ namespace HotelContracts.BindingModels
 
 		public DateTime DepartureDate { get; set; } = DateTime.Now;
 
-        public int NumberHoursSpent { get; set; }
+        public double NumberHoursSpent { get; set; }
 
 		public AcceptanceStatus Status { get; set; } = AcceptanceStatus.Неизвестен;
 
-		public int TotalCost { get; set; }
+		public double TotalCost { get; set; }
 	}
 }

Hotel/HotelContracts/BindingModels/ClientBindingModel.cs

@@ -18,7 +18,5 @@ namespace HotelContracts.BindingModels
 		public DateTime DateOfBirth { get; set; } = DateTime.Now;
 
         public string PhoneNumber { get; set; } = string.Empty;
-
-		public string Password { get; set; } = string.Empty;
 	}
 }

Hotel/HotelContracts/BusinessLogicsContracts/IBookingLogic.cs

@@ -17,5 +17,8 @@ namespace HotelContracts.BusinessLogicsContracts
         bool Create(BookingBindingModel model);
         bool Update(BookingBindingModel model);
         bool Delete(BookingBindingModel model);
+        bool TakeBookingInWork(BookingBindingModel model);
+        bool FinishBooking(BookingBindingModel model);
+        bool DeliveryBooking(BookingBindingModel model);
     }
 }

Hotel/HotelContracts/BusinessLogicsContracts/IRoomLogic.cs

@@ -13,7 +13,7 @@ namespace HotelContracts.BusinessLogicsContracts
 	{
         List<RoomViewModel>? ReadList(RoomSearchModel? model);
         RoomViewModel? ReadElement(RoomSearchModel model);
-
+        bool ProvercaMade(RoomBindingModel model);
         bool Create(RoomBindingModel model);
         bool Update(RoomBindingModel model);
         bool Delete(RoomBindingModel model);

Hotel/HotelContracts/ViewModels/BookingViewModel.cs

@@ -1,4 +1,5 @@
 using HotelDataModels.Enums;
+using HotelDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -8,21 +9,25 @@ using System.Threading.Tasks;
 
 namespace HotelContracts.ViewModels
 {
-	public class BookingViewModel
+	public class BookingViewModel : IBookingModel
     {
         public int Id { get; set; }
         public int RoomId { get; set; }
 
         public int ClientId { get; set; }
+        [DisplayName("Номер комнаты")]
+        public int Number { get; set; } 
+        [DisplayName("Фамилия клиента")]
+        public string Surname { get; set; } = string.Empty;
         [DisplayName("Дата заезда")]
         public DateTime ArrivalDate { get; set; } = DateTime.Now;
         [DisplayName("Дата выезда")]
         public DateTime DepartureDate { get; set; } = DateTime.Now;
         [DisplayName("Количество проведенных часов")]
-        public int NumberHoursSpent { get; set; }
+        public double NumberHoursSpent { get; set; }
         [DisplayName("Статус проверки")]
         public AcceptanceStatus Status { get; set; } = AcceptanceStatus.Неизвестен;
         [DisplayName("Полная стоимость")]
-        public int TotalCost { get; set; }
+        public double TotalCost { get; set; }
     }
 }

Hotel/HotelContracts/ViewModels/ClientViewModel.cs

@@ -1,4 +1,5 @@
-using System;
+using HotelDataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -7,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace HotelContracts.ViewModels
 {
-	public class ClientViewModel
+	public class ClientViewModel : IClientModel
     {
         public int Id { get; set; }
         [DisplayName("Имя")]
@@ -18,7 +19,6 @@ namespace HotelContracts.ViewModels
         public DateTime DateOfBirth { get; set; } = DateTime.Now;
         [DisplayName("Номер телефона")]
         public string PhoneNumber { get; set; } = string.Empty;
-        [DisplayName("Пароль")]
+
-        public string Password { get; set; } = string.Empty;
     }
 }

Hotel/HotelContracts/ViewModels/PostViewModel.cs

@@ -1,4 +1,5 @@
-using System;
+using HotelDataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -7,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace HotelContracts.ViewModels
 {
-	public class PostViewModel
+	public class PostViewModel : IPostModel
     {
         [DisplayName("Номер")]
         public int Id { get; set; }

Hotel/HotelContracts/ViewModels/RoomViewModel.cs

@@ -1,4 +1,5 @@
-using System;
+using HotelDataModels.Models;
+using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Linq;
@@ -7,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace HotelContracts.ViewModels
 {
-	public class RoomViewModel
+	public class RoomViewModel : IRoomModel
     {
         public int Id { get; set; }
 
@@ -22,5 +23,7 @@ namespace HotelContracts.ViewModels
         public string Condition { get; set; } = string.Empty;
         [DisplayName("Цена")]
         public int Cost { get; set; }
+        [DisplayName("Работник")]
+        public string WorkerFIO { get; set; } = string.Empty;
     }
 }

Hotel/HotelContracts/ViewModels/WorkerViewModel.cs

@@ -23,5 +23,7 @@ namespace HotelContracts.ViewModels
         public int Salary { get; set; }
         [DisplayName("Номер телефона")]
         public string Phone { get; set; } = string.Empty;
+        [DisplayName("Должность")]
+        public string PostName { get; set; } = string.Empty;
     }
 }

Hotel/HotelDataModels/Models/IBookingModel.cs

@@ -13,8 +13,8 @@ namespace HotelDataModels.Models
 		int ClientId { get; }
 		DateTime ArrivalDate { get; }
 		DateTime DepartureDate { get; }
-		int NumberHoursSpent { get; }
+		double NumberHoursSpent { get; }
 		Enums.AcceptanceStatus Status { get; }
-		int TotalCost { get; }
+		double TotalCost { get; }
 	}
 }

Hotel/HotelDataModels/Models/IClientModel.cs

@@ -14,6 +14,5 @@ namespace HotelDataModels.Models
         DateTime DateOfBirth { get; }
 		string PhoneNumber { get; }
 
-		string Password { get; }
 	}
 }

Hotel/HotelDatabaseImplement/HotelDataBase.cs

@@ -14,9 +14,11 @@ namespace HotelDatabaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS01;Initial Catalog=HotelDatabaseBD;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseNpgsql(@"Host=localhost;Port=5432;Database=Hotel_Subd_DB;Username=postgres;Password=admin");
             }
             base.OnConfiguring(optionsBuilder);
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
         }
         public virtual DbSet<Booking> Bookings { get; set; }
         public virtual DbSet<Client> Clients { get; set; }

Hotel/HotelDatabaseImplement/HotelDatabase.cs

@@ -14,9 +14,11 @@ namespace HotelDatabaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS01;Initial Catalog=HotelDatabaseBD;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseNpgsql(@"Host=localhost;Port=5432;Database=Hotel_Subd_DB;Username=postgres;Password=admin");
             }
             base.OnConfiguring(optionsBuilder);
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+            AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
         }
         public virtual DbSet<Booking> Bookings { get; set; }
         public virtual DbSet<Client> Clients { get; set; }

Hotel/HotelDatabaseImplement/HotelDatabaseImplement.csproj

@@ -13,7 +13,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.8" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.1" />
   </ItemGroup>
 
   <ItemGroup>

Hotel/HotelDatabaseImplement/Implements/BookingStorage.cs

@@ -20,13 +20,17 @@ namespace HotelDatabaseImplement.Implements
             var element = context.Bookings.FirstOrDefault(x => x.Id == model.Id);
             if (element != null)
             {
+                var deletedElement = context.Bookings
+                                           .Include(x => x.Client)
+                                           .Include(x => x.Room)
+                                           .FirstOrDefault(x => x.Id == model.Id)
+                                           ?.GetViewModel;
                 context.Bookings.Remove(element);
                 context.SaveChanges();
                 return element.GetViewModel;
             }
             return null;
         }
-
         public BookingViewModel? GetElement(BookingSearchModel model)
         {
             if (!model.Id.HasValue)
@@ -34,7 +38,7 @@ namespace HotelDatabaseImplement.Implements
                 return null;
             }
             using var context = new HotelDatabase();
-            return context.Bookings.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+            return context.Bookings.Include(x => x.Client).Include(x => x.Room).FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
         }
 
         public List<BookingViewModel> GetFilteredList(BookingSearchModel model)
@@ -44,13 +48,13 @@ namespace HotelDatabaseImplement.Implements
                 return new();
             }
             using var context = new HotelDatabase();
-            return context.Bookings.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
+            return context.Bookings.Include(x => x.Client).Include(x => x.Room).Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
         }
 
         public List<BookingViewModel> GetFullList()
         {
             using var context = new HotelDatabase();
-            return context.Bookings.Select(x => x.GetViewModel).ToList();
+            return context.Bookings.Include(x => x.Client).Include(x => x.Room).Select(x => x.GetViewModel).ToList();
         }
 
         public BookingViewModel? Insert(BookingBindingModel model)
@@ -63,9 +67,12 @@ namespace HotelDatabaseImplement.Implements
             using var context = new HotelDatabase();
             context.Bookings.Add(newBooking);
             context.SaveChanges();
-            return newBooking.GetViewModel;
+            return context.Bookings
+                      .Include(x => x.Client)
+                      .Include(x => x.Room)
+                      .FirstOrDefault(x => x.Id == newBooking.Id)
+                      ?.GetViewModel;
         }
-
         public BookingViewModel? Update(BookingBindingModel model)
         {
             using var context = new HotelDatabase();
@@ -80,7 +87,11 @@ namespace HotelDatabaseImplement.Implements
                 booking.Update(model);
                 context.SaveChanges();
                 transaction.Commit();
-                return booking.GetViewModel;
+                return context.Bookings
+                         .Include(x => x.Client)
+                         .Include(x => x.Room)
+                         .FirstOrDefault(x => x.Id == model.Id)
+                         ?.GetViewModel;
             }
             catch
             {

Hotel/HotelDatabaseImplement/Implements/RoomStorage.cs

@@ -3,6 +3,7 @@ using HotelContracts.SearchModels;
 using HotelContracts.StoragesContracts;
 using HotelContracts.ViewModels;
 using HotelDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -16,12 +17,16 @@ namespace HotelDatabaseImplement.Implements
         public RoomViewModel? Delete(RoomBindingModel model)
         {
             using var context = new HotelDatabase();
-            var element = context.Rooms.FirstOrDefault(x => x.Id == model.Id);
+            var element = context.Rooms.FirstOrDefault(x => x.Number == model.Number);
             if (element != null)
             {
+                var deletedElement = context.Rooms
+                                           .Include(x => x.Worker)
+                                           .FirstOrDefault(x => x.Number == model.Number)
+                                           ?.GetViewModel;
                 context.Rooms.Remove(element);
                 context.SaveChanges();
-                return element.GetViewModel;
+                return deletedElement;
             }
             return null;
         }
@@ -33,7 +38,7 @@ namespace HotelDatabaseImplement.Implements
                 return null;
             }
             using var context = new HotelDatabase();
-            return context.Rooms.FirstOrDefault(x => (!string.IsNullOrEmpty(model.Number.ToString())) && x.Number.ToString() == model.Number.ToString() || model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
+            return context.Rooms.Include(x => x.Worker).FirstOrDefault(x => (!string.IsNullOrEmpty(model.Number.ToString())) && x.Number.ToString() == model.Number.ToString() || model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
         }
 
         public List<RoomViewModel> GetFilteredList(RoomSearchModel model)
@@ -43,13 +48,13 @@ namespace HotelDatabaseImplement.Implements
                 return new();
             }
             using var context = new HotelDatabase();
-            return context.Rooms.Where(x => x.Number.ToString().Contains(model.Number.ToString())).Select(x => x.GetViewModel).ToList();
+            return context.Rooms.Include(x => x.Worker).Where(x => x.Number.ToString().Contains(model.Number.ToString())).Select(x => x.GetViewModel).ToList();
         }
 
         public List<RoomViewModel> GetFullList()
         {
             using var context = new HotelDatabase();
-            return context.Rooms.Select(x => x.GetViewModel).ToList();
+            return context.Rooms.Include(x => x.Worker).Select(x => x.GetViewModel).ToList();
         }
 
         public RoomViewModel? Insert(RoomBindingModel model)
@@ -62,7 +67,10 @@ namespace HotelDatabaseImplement.Implements
             using var context = new HotelDatabase();
             context.Rooms.Add(newRoom);
             context.SaveChanges();
-            return newRoom.GetViewModel;
+            return context.Rooms
+                      .Include(x => x.Worker)
+                      .FirstOrDefault(x => x.Id == newRoom.Id)
+                      ?.GetViewModel;
         }
 
         public RoomViewModel? Update(RoomBindingModel model)
@@ -75,7 +83,10 @@ namespace HotelDatabaseImplement.Implements
             }
             component.Update(model);
             context.SaveChanges();
-            return component.GetViewModel;
+            return context.Rooms
+                         .Include(x => x.Worker)
+                         .FirstOrDefault(x => x.Id == model.Id)
+                         ?.GetViewModel;
         }
     }
 }

Hotel/HotelDatabaseImplement/Implements/WorkerStorage.cs

@@ -3,6 +3,7 @@ using HotelContracts.SearchModels;
 using HotelContracts.StoragesContracts;
 using HotelContracts.ViewModels;
 using HotelDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -19,9 +20,13 @@ namespace HotelDatabaseImplement.Implements
             var element = context.Workers.FirstOrDefault(x => x.Id == model.Id);
             if (element != null)
             {
+                var deletedElement = context.Workers
+                                           .Include(x => x.Post)
+                                           .FirstOrDefault(x => x.Id == model.Id)
+                                           ?.GetViewModel;
                 context.Workers.Remove(element);
                 context.SaveChanges();
-                return element.GetViewModel;
+                return deletedElement;
             }
             return null;
         }
@@ -33,7 +38,7 @@ namespace HotelDatabaseImplement.Implements
                 return null;
             }
             using var context = new HotelDatabase();
-            return context.Workers.FirstOrDefault(x => (!string.IsNullOrEmpty(model.FIO)) && x.FIO == model.FIO || model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
+            return context.Workers.Include(x => x.Post).FirstOrDefault(x => (!string.IsNullOrEmpty(model.FIO)) && x.FIO == model.FIO || model.Id.HasValue && x.Id == model.Id)?.GetViewModel;
         }
 
         public List<WorkerViewModel> GetFilteredList(WorkerSearchModel model)
@@ -43,13 +48,13 @@ namespace HotelDatabaseImplement.Implements
                 return new();
             }
             using var context = new HotelDatabase();
-            return context.Workers.Where(x => x.FIO.Contains(model.FIO)).Select(x => x.GetViewModel).ToList();
+            return context.Workers.Include(x => x.Post).Where(x => x.FIO.Contains(model.FIO)).Select(x => x.GetViewModel).ToList();
         }
 
         public List<WorkerViewModel> GetFullList()
         {
             using var context = new HotelDatabase();
-            return context.Workers.Select(x => x.GetViewModel).ToList();
+            return context.Workers.Include(x => x.Post).Select(x => x.GetViewModel).ToList();
         }
 
         public WorkerViewModel? Insert(WorkerBindingModel model)
@@ -62,7 +67,10 @@ namespace HotelDatabaseImplement.Implements
             using var context = new HotelDatabase();
             context.Workers.Add(newWorker);
             context.SaveChanges();
-            return newWorker.GetViewModel;
+            return context.Workers
+                      .Include(x => x.Post)
+                      .FirstOrDefault(x => x.Id == newWorker.Id)
+                      ?.GetViewModel;
         }
 
         public WorkerViewModel? Update(WorkerBindingModel model)
@@ -75,7 +83,10 @@ namespace HotelDatabaseImplement.Implements
             }
             component.Update(model);
             context.SaveChanges();
-            return component.GetViewModel;
+            return context.Workers
+                         .Include(x => x.Post)
+                         .FirstOrDefault(x => x.Id == model.Id)
+                         ?.GetViewModel;
         }
     }
 }

Hotel/HotelDatabaseImplement/Migrations/20240506153412_initialMigration.Designer.cs

@@ -0,0 +1,223 @@
+// <auto-generated />
+using System;
+using HotelDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace HotelDatabaseImplement.Migrations
+{
+    [DbContext(typeof(HotelDatabase))]
+    [Migration("20240506153412_initialMigration")]
+    partial class initialMigration
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Booking", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("ArrivalDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("ClientId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DepartureDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<double>("NumberHoursSpent")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("RoomId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("TotalCost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientId");
+
+                    b.HasIndex("RoomId");
+
+                    b.ToTable("Bookings");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Client", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateOfBirth")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Post", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PostName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Room", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Condition")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Cost")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Floor")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Number")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("NumberOfBeds")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Rooms");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Worker", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateOfBirth")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Phone")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("PostId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Salary")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkExperience")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PostId");
+
+                    b.ToTable("Workers");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Booking", b =>
+                {
+                    b.HasOne("HotelDatabaseImplement.Models.Client", "Client")
+                        .WithMany()
+                        .HasForeignKey("ClientId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDatabaseImplement.Models.Room", "Room")
+                        .WithMany()
+                        .HasForeignKey("RoomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Room");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Room", b =>
+                {
+                    b.HasOne("HotelDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Worker", b =>
+                {
+                    b.HasOne("HotelDatabaseImplement.Models.Post", "Post")
+                        .WithMany()
+                        .HasForeignKey("PostId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Post");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Hotel/HotelDatabaseImplement/Migrations/20240506153412_initialMigration.cs

@@ -0,0 +1,163 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace HotelDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class initialMigration : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Clients",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Surname = table.Column<string>(type: "text", nullable: false),
+                    DateOfBirth = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    PhoneNumber = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Clients", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Posts",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PostName = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Posts", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Workers",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PostId = table.Column<int>(type: "integer", nullable: false),
+                    FIO = table.Column<string>(type: "text", nullable: false),
+                    DateOfBirth = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    WorkExperience = table.Column<int>(type: "integer", nullable: false),
+                    Salary = table.Column<int>(type: "integer", nullable: false),
+                    Phone = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Workers", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Workers_Posts_PostId",
+                        column: x => x.PostId,
+                        principalTable: "Posts",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Rooms",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    WorkerId = table.Column<int>(type: "integer", nullable: false),
+                    Number = table.Column<int>(type: "integer", nullable: false),
+                    Floor = table.Column<int>(type: "integer", nullable: false),
+                    NumberOfBeds = table.Column<int>(type: "integer", nullable: false),
+                    Condition = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Rooms", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Rooms_Workers_WorkerId",
+                        column: x => x.WorkerId,
+                        principalTable: "Workers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Bookings",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    RoomId = table.Column<int>(type: "integer", nullable: false),
+                    ClientId = table.Column<int>(type: "integer", nullable: false),
+                    ArrivalDate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    DepartureDate = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    NumberHoursSpent = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    TotalCost = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Bookings", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Bookings_Clients_ClientId",
+                        column: x => x.ClientId,
+                        principalTable: "Clients",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_Bookings_Rooms_RoomId",
+                        column: x => x.RoomId,
+                        principalTable: "Rooms",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Bookings_ClientId",
+                table: "Bookings",
+                column: "ClientId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Bookings_RoomId",
+                table: "Bookings",
+                column: "RoomId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Rooms_WorkerId",
+                table: "Rooms",
+                column: "WorkerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Workers_PostId",
+                table: "Workers",
+                column: "PostId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Bookings");
+
+            migrationBuilder.DropTable(
+                name: "Clients");
+
+            migrationBuilder.DropTable(
+                name: "Rooms");
+
+            migrationBuilder.DropTable(
+                name: "Workers");
+
+            migrationBuilder.DropTable(
+                name: "Posts");
+        }
+    }
+}

Hotel/HotelDatabaseImplement/Migrations/HotelDatabaseModelSnapshot.cs

@@ -0,0 +1,220 @@
+// <auto-generated />
+using System;
+using HotelDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace HotelDatabaseImplement.Migrations
+{
+    [DbContext(typeof(HotelDatabase))]
+    partial class HotelDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.16")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Booking", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("ArrivalDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<int>("ClientId")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DepartureDate")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<double>("NumberHoursSpent")
+                        .HasColumnType("double precision");
+
+                    b.Property<int>("RoomId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("TotalCost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientId");
+
+                    b.HasIndex("RoomId");
+
+                    b.ToTable("Bookings");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Client", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateOfBirth")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Post", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PostName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Posts");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Room", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Condition")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Cost")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Floor")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Number")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("NumberOfBeds")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Rooms");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Worker", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("DateOfBirth")
+                        .HasColumnType("timestamp without time zone");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Phone")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("PostId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Salary")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("WorkExperience")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PostId");
+
+                    b.ToTable("Workers");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Booking", b =>
+                {
+                    b.HasOne("HotelDatabaseImplement.Models.Client", "Client")
+                        .WithMany()
+                        .HasForeignKey("ClientId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDatabaseImplement.Models.Room", "Room")
+                        .WithMany()
+                        .HasForeignKey("RoomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Room");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Room", b =>
+                {
+                    b.HasOne("HotelDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("HotelDatabaseImplement.Models.Worker", b =>
+                {
+                    b.HasOne("HotelDatabaseImplement.Models.Post", "Post")
+                        .WithMany()
+                        .HasForeignKey("PostId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Post");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Hotel/HotelDatabaseImplement/Models/Booking.cs

@@ -22,13 +22,15 @@ namespace HotelDatabaseImplement.Models
         [Required]
         public DateTime DepartureDate { get; set; }
         [Required]
-        public int NumberHoursSpent { get; set; }
+        public double NumberHoursSpent { get; set; }
         [Required]
         public AcceptanceStatus Status { get; set; }
         [Required]
-        public int TotalCost { get; set; }
+        public double TotalCost { get; set; }
         [Required]
         public int Id { get; set; }
+        public virtual Room Room { get; set; }
+        public virtual Client Client { get; set; }
         public static Booking Create(BookingBindingModel model)
         {
             return new Booking()
@@ -47,13 +49,7 @@ namespace HotelDatabaseImplement.Models
         {
             if (model == null) return;
             Id = model.Id;
-            RoomId = model.RoomId;
-            ClientId = model.ClientId;
-            ArrivalDate = model.ArrivalDate;
-            DepartureDate = model.DepartureDate;
-            NumberHoursSpent = model.NumberHoursSpent;
             Status = model.Status;
-            TotalCost = model.TotalCost;
         }
         public BookingViewModel GetViewModel => new()
         {
@@ -64,7 +60,9 @@ namespace HotelDatabaseImplement.Models
             DepartureDate = DepartureDate,
             NumberHoursSpent = NumberHoursSpent,
             Status = Status,
-            TotalCost = TotalCost
+            TotalCost = TotalCost,
+            Number = Room.Number,
+            Surname = Client.Surname
         };
     }
 }

Hotel/HotelDatabaseImplement/Models/Client.cs

@@ -20,8 +20,6 @@ namespace HotelDatabaseImplement.Models
         public DateTime DateOfBirth { get; set; }
         [Required]
         public string PhoneNumber { get; set; } = string.Empty;
-        [Required]
-        public string Password { get; set; } = string.Empty;
 
         public int Id { get; set; }
         public static Client Create(ClientBindingModel model)
@@ -32,8 +30,7 @@ namespace HotelDatabaseImplement.Models
                 Name = model.Name,
                 Surname = model.Surname,
                 DateOfBirth = model.DateOfBirth,
-                PhoneNumber = model.PhoneNumber,
+                PhoneNumber = model.PhoneNumber
-                Password = model.Password,
             };
         }
         public void Update(ClientBindingModel model)
@@ -44,7 +41,6 @@ namespace HotelDatabaseImplement.Models
             Surname = model.Surname;
             DateOfBirth = model.DateOfBirth;
             PhoneNumber = model.PhoneNumber;
-            Password = model.Password;
         }
         public ClientViewModel GetViewModel => new()
         {
@@ -53,7 +49,6 @@ namespace HotelDatabaseImplement.Models
             Surname = Surname,
             DateOfBirth = DateOfBirth,
             PhoneNumber = PhoneNumber,
-            Password = Password
         };
     }
 }

Hotel/HotelDatabaseImplement/Models/Room.cs

@@ -27,6 +27,7 @@ namespace HotelDatabaseImplement.Models
         public int Cost { get; set; }
 
         public int Id { get; set; }
+        public virtual Worker Worker { get; set; }
         public static Room? Create(RoomBindingModel model)
         {
             if (model == null) return null;
@@ -46,7 +47,6 @@ namespace HotelDatabaseImplement.Models
         {
             if (model == null) return;
             Id = model.Id;
-            WorkerId = model.WorkerId;
             Number = model.Number;
             NumberOfBeds = model.NumberOfBeds;
             Condition = model.Condition;
@@ -63,7 +63,8 @@ namespace HotelDatabaseImplement.Models
             NumberOfBeds = NumberOfBeds,
             Condition = Condition,
             Cost = Cost,
-            Floor = Floor
+            Floor = Floor,
+            WorkerFIO = Worker.FIO
         };
     }
 }

Hotel/HotelDatabaseImplement/Models/Worker.cs

@@ -25,6 +25,7 @@ namespace HotelDatabaseImplement.Models
         public string Phone { get; set; } = string.Empty;
 
         public int Id { get; set; }
+        public virtual Post Post { get; set; }
         public static Worker? Create(WorkerBindingModel model)
         {
             if (model == null) return null;
@@ -44,7 +45,6 @@ namespace HotelDatabaseImplement.Models
         {
             if (model == null) return;
             Id = model.Id;
-            PostId = model.PostId;
             FIO = model.FIO;
             DateOfBirth = model.DateOfBirth;
             WorkExperience = model.WorkExperience;
@@ -60,7 +60,8 @@ namespace HotelDatabaseImplement.Models
             DateOfBirth = DateOfBirth,
             WorkExperience = WorkExperience,
             Salary = Salary,
-            Phone = Phone
+            Phone = Phone,
+            PostName = Post.PostName
         };
     }
 }

Hotel/HotelView/FormBooking.Designer.cs

@@ -0,0 +1,220 @@
+namespace HotelView
+{
+    partial class FormBooking
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label3 = new Label();
+            label4 = new Label();
+            label5 = new Label();
+            label6 = new Label();
+            textBoxTotalPrice = new TextBox();
+            textBoxTotalHour = new TextBox();
+            comboBoxRoom = new ComboBox();
+            comboBoxClient = new ComboBox();
+            dateTimePickerArriv = new DateTimePicker();
+            dateTimePickerDep = new DateTimePicker();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(14, 27);
+            label1.Name = "label1";
+            label1.Size = new Size(72, 20);
+            label1.TabIndex = 0;
+            label1.Text = "Комната:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(14, 68);
+            label2.Name = "label2";
+            label2.Size = new Size(61, 20);
+            label2.TabIndex = 1;
+            label2.Text = "Клиент:";
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(283, 280);
+            buttonCancel.Margin = new Padding(3, 4, 3, 4);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(88, 40);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(93, 280);
+            buttonSave.Margin = new Padding(3, 4, 3, 4);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(95, 40);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(14, 120);
+            label3.Name = "label3";
+            label3.Size = new Size(118, 20);
+            label3.TabIndex = 8;
+            label3.Text = "Дата прибытия:";
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(14, 167);
+            label4.Name = "label4";
+            label4.Size = new Size(103, 20);
+            label4.TabIndex = 9;
+            label4.Text = "Дата отъезда:";
+            // 
+            // label5
+            // 
+            label5.AutoSize = true;
+            label5.Location = new Point(14, 233);
+            label5.Name = "label5";
+            label5.Size = new Size(48, 20);
+            label5.TabIndex = 10;
+            label5.Text = "Цена:";
+            // 
+            // label6
+            // 
+            label6.AutoSize = true;
+            label6.Location = new Point(218, 233);
+            label6.Name = "label6";
+            label6.Size = new Size(48, 20);
+            label6.TabIndex = 11;
+            label6.Text = "Часы:";
+            // 
+            // textBoxTotalPrice
+            // 
+            textBoxTotalPrice.Enabled = false;
+            textBoxTotalPrice.Location = new Point(68, 230);
+            textBoxTotalPrice.Name = "textBoxTotalPrice";
+            textBoxTotalPrice.Size = new Size(144, 27);
+            textBoxTotalPrice.TabIndex = 12;
+            // 
+            // textBoxTotalHour
+            // 
+            textBoxTotalHour.Enabled = false;
+            textBoxTotalHour.Location = new Point(272, 230);
+            textBoxTotalHour.Name = "textBoxTotalHour";
+            textBoxTotalHour.Size = new Size(144, 27);
+            textBoxTotalHour.TabIndex = 13;
+            // 
+            // comboBoxRoom
+            // 
+            comboBoxRoom.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxRoom.FormattingEnabled = true;
+            comboBoxRoom.Location = new Point(93, 24);
+            comboBoxRoom.Name = "comboBoxRoom";
+            comboBoxRoom.Size = new Size(323, 28);
+            comboBoxRoom.TabIndex = 14;
+            // 
+            // comboBoxClient
+            // 
+            comboBoxClient.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxClient.FormattingEnabled = true;
+            comboBoxClient.Location = new Point(93, 68);
+            comboBoxClient.Name = "comboBoxClient";
+            comboBoxClient.Size = new Size(323, 28);
+            comboBoxClient.TabIndex = 15;
+            comboBoxClient.SelectedIndexChanged += comboBoxClient_SelectedIndexChanged;
+            // 
+            // dateTimePickerArriv
+            // 
+            dateTimePickerArriv.Format = DateTimePickerFormat.Time;
+            dateTimePickerArriv.Location = new Point(138, 120);
+            dateTimePickerArriv.Name = "dateTimePickerArriv";
+            dateTimePickerArriv.Size = new Size(278, 27);
+            dateTimePickerArriv.TabIndex = 16;
+            dateTimePickerArriv.ValueChanged += textBoxdateTimePickerArriv_TextChanged;
+            // 
+            // dateTimePickerDep
+            // 
+            dateTimePickerDep.Format = DateTimePickerFormat.Time;
+            dateTimePickerDep.Location = new Point(138, 167);
+            dateTimePickerDep.Name = "dateTimePickerDep";
+            dateTimePickerDep.Size = new Size(278, 27);
+            dateTimePickerDep.TabIndex = 17;
+            dateTimePickerDep.ValueChanged += textBoxdateTimePickerDep_TextChanged;
+            // 
+            // FormBooking
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(454, 366);
+            Controls.Add(dateTimePickerDep);
+            Controls.Add(dateTimePickerArriv);
+            Controls.Add(comboBoxClient);
+            Controls.Add(comboBoxRoom);
+            Controls.Add(textBoxTotalHour);
+            Controls.Add(textBoxTotalPrice);
+            Controls.Add(label6);
+            Controls.Add(label5);
+            Controls.Add(label4);
+            Controls.Add(label3);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormBooking";
+            Text = "Покупатель";
+            Load += FormBooking_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label3;
+        private Label label4;
+        private Label label5;
+        private Label label6;
+        private TextBox textBoxTotalPrice;
+        private TextBox textBoxTotalHour;
+        private ComboBox comboBoxRoom;
+        private ComboBox comboBoxClient;
+        private DateTimePicker dateTimePickerArriv;
+        private DateTimePicker dateTimePickerDep;
+    }
+}

Hotel/HotelView/FormBooking.cs

@@ -0,0 +1,170 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using HotelDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HotelView
+{
+    public partial class FormBooking : Form
+    {
+
+        private readonly IBookingLogic _logic;
+        private readonly IRoomLogic _logicR;
+        private readonly IClientLogic _logicC;
+        private int? _id;
+        public int Id { set { _id = value; } }
+
+        public FormBooking(IBookingLogic logic, IRoomLogic logicR, IClientLogic logicC)
+        {
+            InitializeComponent();
+            _logic = logic;
+            _logicR = logicR;
+            _logicC = logicC;   
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (comboBoxClient.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите клиента", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxRoom.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите комнату", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if(Convert.ToDouble(textBoxTotalHour.Text) < 1)
+            {
+                MessageBox.Show("Бронь не может быть меньше часа", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            try
+            {
+                var model = new BookingBindingModel
+                {
+                    Id = _id ?? 0,
+                    RoomId = Convert.ToInt32(comboBoxRoom.SelectedValue),
+                    ClientId = Convert.ToInt32(comboBoxClient.SelectedValue),
+                    ArrivalDate = dateTimePickerArriv.Value,
+                    DepartureDate = dateTimePickerDep.Value,
+                    NumberHoursSpent = Convert.ToDouble(textBoxTotalHour.Text),
+                    TotalCost = Convert.ToDouble(textBoxTotalPrice.Text),
+                    Status = HotelDataModels.Enums.AcceptanceStatus.Неизвестен,
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Доп информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void CalcHour()
+        {
+            if(dateTimePickerDep.Value.Date != dateTimePickerArriv.Value)
+            {
+                try
+                {
+                    var start = dateTimePickerArriv.Value;
+                    var end = dateTimePickerDep.Value;
+                    var Day = (end.Day - start.Day) * 24;
+                    var Hour = (end.Hour - start.Hour);
+                    double Minute = (end.Minute - start.Minute) / 60;
+                    textBoxTotalHour.Text = (Day + Hour + Minute).ToString();
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void CalcSum()
+        {
+            if(Convert.ToDouble(textBoxTotalHour.Text) >= 1)
+            {
+                try
+                {
+                    int id = Convert.ToInt32(comboBoxRoom.SelectedValue);
+                    var roomPrice = _logicR.ReadElement(new RoomSearchModel
+                    {
+                        Id
+                    = id
+                    });
+                    var Sum = (roomPrice?.Cost ?? 0)* Convert.ToDouble(textBoxTotalHour.Text);
+                    textBoxTotalPrice.Text = Sum.ToString();
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+                    MessageBoxIcon.Error);
+                }
+            }
+        }
+        private void textBoxdateTimePickerArriv_TextChanged(object sender, EventArgs e)
+        {
+            CalcHour();
+            CalcSum();
+        }
+        private void textBoxdateTimePickerDep_TextChanged(object sender, EventArgs e)
+        {
+            CalcHour();
+            CalcSum();
+        }
+        private void comboBoxClient_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            CalcHour();
+            CalcSum();
+        }
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+        private void FormBooking_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                var roomList = _logicR.ReadList(null);
+                var clientList = _logicC.ReadList(null);
+                if (roomList != null)
+                {
+                    comboBoxRoom.DisplayMember = "Number";
+                    comboBoxRoom.ValueMember = "Id";
+                    comboBoxRoom.DataSource = roomList;
+                    comboBoxRoom.SelectedItem = null;
+                }
+                if (clientList != null)
+                {
+                    comboBoxClient.DisplayMember = "Name";
+                    comboBoxClient.ValueMember = "Id";
+                    comboBoxClient.DataSource = clientList;
+                    comboBoxClient.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Hotel/HotelView/FormBooking.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormClient.Designer.cs

@@ -0,0 +1,167 @@
+namespace HotelView
+{
+    partial class FormClient
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            textBoxName = new TextBox();
+            dateTimePicker = new DateTimePicker();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label3 = new Label();
+            label4 = new Label();
+            textBoxSurname = new TextBox();
+            textBoxPhone = new TextBox();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(14, 27);
+            label1.Name = "label1";
+            label1.Size = new Size(42, 20);
+            label1.TabIndex = 0;
+            label1.Text = "Имя:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(14, 118);
+            label2.Name = "label2";
+            label2.Size = new Size(119, 20);
+            label2.TabIndex = 1;
+            label2.Text = "Дата рождения:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(133, 16);
+            textBoxName.Margin = new Padding(3, 4, 3, 4);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(237, 27);
+            textBoxName.TabIndex = 2;
+            // 
+            // dateTimePicker
+            // 
+            dateTimePicker.Location = new Point(133, 118);
+            dateTimePicker.Margin = new Padding(3, 4, 3, 4);
+            dateTimePicker.Name = "dateTimePicker";
+            dateTimePicker.Size = new Size(237, 27);
+            dateTimePicker.TabIndex = 3;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(285, 226);
+            buttonCancel.Margin = new Padding(3, 4, 3, 4);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(88, 40);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(184, 226);
+            buttonSave.Margin = new Padding(3, 4, 3, 4);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(95, 40);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(14, 72);
+            label3.Name = "label3";
+            label3.Size = new Size(76, 20);
+            label3.TabIndex = 8;
+            label3.Text = "Фамилия:";
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(14, 168);
+            label4.Name = "label4";
+            label4.Size = new Size(130, 20);
+            label4.TabIndex = 9;
+            label4.Text = "Номер телефона:";
+            // 
+            // textBoxSurname
+            // 
+            textBoxSurname.Location = new Point(133, 69);
+            textBoxSurname.Name = "textBoxSurname";
+            textBoxSurname.Size = new Size(237, 27);
+            textBoxSurname.TabIndex = 10;
+            // 
+            // textBoxPhone
+            // 
+            textBoxPhone.Location = new Point(150, 168);
+            textBoxPhone.Name = "textBoxPhone";
+            textBoxPhone.Size = new Size(220, 27);
+            textBoxPhone.TabIndex = 11;
+            // 
+            // FormClient
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(387, 282);
+            Controls.Add(textBoxPhone);
+            Controls.Add(textBoxSurname);
+            Controls.Add(label4);
+            Controls.Add(label3);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(dateTimePicker);
+            Controls.Add(textBoxName);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormClient";
+            Text = "Покупатель";
+            Load += FormClient_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private TextBox textBoxName;
+        private DateTimePicker dateTimePicker;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label3;
+        private Label label4;
+        private TextBox textBoxSurname;
+        private TextBox textBoxPhone;
+    }
+}

Hotel/HotelView/FormClient.cs

@@ -0,0 +1,91 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HotelView
+{
+    public partial class FormClient : Form
+    {
+
+        private readonly IClientLogic _logic;
+        private int? _id;
+
+        public int Id { set { _id = value; } }
+
+        public FormClient(IClientLogic logic)
+        {
+            InitializeComponent();
+            _logic = logic;
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните Имя", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+
+                return;
+            }
+            try
+            {
+                var model = new ClientBindingModel
+                {
+                    Id = _id ?? 0,
+                    Name = textBoxName.Text,
+                    Surname = textBoxSurname.Text,
+                    DateOfBirth = dateTimePicker.Value,
+                    PhoneNumber = textBoxPhone.Text
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Доп информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormClient_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                try
+                {
+                    var view = _logic.ReadElement(new ClientSearchModel { Id = _id.Value });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.Name;
+                        textBoxSurname.Text = view.Surname;
+                        dateTimePicker.Value = (DateTime)view.DateOfBirth;
+                        textBoxPhone.Text = view.PhoneNumber;
+                        
+                    }
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+    }
+}

Hotel/HotelView/FormClient.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormClients.Designer.cs

@@ -0,0 +1,152 @@
+namespace HotelView
+{
+    partial class FormClients
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            button1 = new Button();
+            button2 = new Button();
+            button3 = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Margin = new Padding(3, 4, 3, 4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.ShowCellToolTips = false;
+            dataGridView.ShowEditingIcon = false;
+            dataGridView.Size = new Size(600, 600);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(645, 155);
+            buttonDel.Margin = new Padding(3, 4, 3, 4);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(141, 47);
+            buttonDel.TabIndex = 7;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += buttonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(645, 87);
+            buttonUpd.Margin = new Padding(3, 4, 3, 4);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(141, 47);
+            buttonUpd.TabIndex = 6;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += buttonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(645, 20);
+            buttonAdd.Margin = new Padding(3, 4, 3, 4);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(141, 47);
+            buttonAdd.TabIndex = 5;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(645, 220);
+            button1.Name = "button1";
+            button1.Size = new Size(141, 47);
+            button1.TabIndex = 8;
+            button1.Text = "Тест добавления";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // button2
+            // 
+            button2.Location = new Point(645, 287);
+            button2.Name = "button2";
+            button2.Size = new Size(141, 47);
+            button2.TabIndex = 9;
+            button2.Text = "Тест удаления";
+            button2.UseVisualStyleBackColor = true;
+            button2.Click += button2_Click;
+            // 
+            // button3
+            // 
+            button3.Location = new Point(645, 352);
+            button3.Name = "button3";
+            button3.Size = new Size(141, 47);
+            button3.TabIndex = 10;
+            button3.Text = "Тест обновления";
+            button3.UseVisualStyleBackColor = true;
+            button3.Click += button3_Click;
+            // 
+            // FormClients
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(818, 600);
+            Controls.Add(button3);
+            Controls.Add(button2);
+            Controls.Add(button1);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormClients";
+            Text = "Покупатели";
+            Load += FormClients_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private Button button1;
+        private Button button2;
+        private Button button3;
+    }
+}

Hotel/HotelView/FormClients.cs

@@ -0,0 +1,190 @@
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using HotelContracts.SearchModels;
+
+namespace HotelView
+{
+    public partial class FormClients : Form
+    {
+        private readonly IClientLogic _logic;
+        public FormClients(IClientLogic logic)
+        {
+            InitializeComponent();
+            _logic = logic;
+        }
+
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["PhoneNumber"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormClient));
+            if (service is FormClient 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(FormClient));
+                if (service is FormClient 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);
+                    try
+                    {
+                        if (!_logic.Delete(new ClientBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Доп информация в логах");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void FormClients_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                for (int i = 0; i < 1000; i++)
+                {
+                    var operationResult = _logic.Create(new ClientBindingModel
+                    {
+                        Name = "Игооооорь",
+                        Surname = "Игоревич",
+                        DateOfBirth = DateTime.Now,
+                        PhoneNumber = "80942436674"
+                    });
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new ClientSearchModel
+                {
+                    Id= id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Delete(new ClientBindingModel
+                    {
+                        Id = i,
+                        
+                    });
+                    
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new ClientSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Update(new ClientBindingModel
+                    {
+                        Id = i,
+                        Name = "Игооооорь",
+                        Surname = "Игоревич",
+                        DateOfBirth = DateTime.Now,
+                        PhoneNumber = "80942436674"
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Hotel/HotelView/FormClients.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormMain.Designer.cs

@@ -0,0 +1,229 @@
+namespace HotelView
+{
+    partial class FormMain
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            menuStrip1 = new MenuStrip();
+            объектыToolStripMenuItem = new ToolStripMenuItem();
+            postToolStripMenuItem = new ToolStripMenuItem();
+            workerToolStripMenuItem = new ToolStripMenuItem();
+            roomToolStripMenuItem = new ToolStripMenuItem();
+            клиентToolStripMenuItem = new ToolStripMenuItem();
+            buttonIssuedBooking = new Button();
+            buttonBookingReady = new Button();
+            buttonTakeBookingInWork = new Button();
+            buttonCreateBooking = new Button();
+            dataGridView = new DataGridView();
+            button1 = new Button();
+            button2 = new Button();
+            button3 = new Button();
+            menuStrip1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // menuStrip1
+            // 
+            menuStrip1.ImageScalingSize = new Size(20, 20);
+            menuStrip1.Items.AddRange(new ToolStripItem[] { объектыToolStripMenuItem, клиентToolStripMenuItem });
+            menuStrip1.Location = new Point(0, 0);
+            menuStrip1.Name = "menuStrip1";
+            menuStrip1.Padding = new Padding(7, 3, 0, 3);
+            menuStrip1.Size = new Size(1387, 30);
+            menuStrip1.TabIndex = 0;
+            menuStrip1.Text = "menuStrip1";
+            // 
+            // объектыToolStripMenuItem
+            // 
+            объектыToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { postToolStripMenuItem, workerToolStripMenuItem, roomToolStripMenuItem });
+            объектыToolStripMenuItem.Name = "объектыToolStripMenuItem";
+            объектыToolStripMenuItem.Size = new Size(84, 24);
+            объектыToolStripMenuItem.Text = "Объекты";
+            // 
+            // postToolStripMenuItem
+            // 
+            postToolStripMenuItem.Name = "postToolStripMenuItem";
+            postToolStripMenuItem.Size = new Size(169, 26);
+            postToolStripMenuItem.Text = "Должность";
+            postToolStripMenuItem.Click += postToolStripMenuItem_Click;
+            // 
+            // workerToolStripMenuItem
+            // 
+            workerToolStripMenuItem.Name = "workerToolStripMenuItem";
+            workerToolStripMenuItem.Size = new Size(169, 26);
+            workerToolStripMenuItem.Text = "Рабочий";
+            workerToolStripMenuItem.Click += workerToolStripMenuItem_Click;
+            // 
+            // roomToolStripMenuItem
+            // 
+            roomToolStripMenuItem.Name = "roomToolStripMenuItem";
+            roomToolStripMenuItem.Size = new Size(169, 26);
+            roomToolStripMenuItem.Text = "Комната";
+            roomToolStripMenuItem.Click += roomToolStripMenuItem_Click;
+            // 
+            // клиентToolStripMenuItem
+            // 
+            клиентToolStripMenuItem.Name = "клиентToolStripMenuItem";
+            клиентToolStripMenuItem.Size = new Size(72, 24);
+            клиентToolStripMenuItem.Text = "Клиент";
+            клиентToolStripMenuItem.Click += clientToolStripMenuItem_Click;
+            // 
+            // buttonIssuedBooking
+            // 
+            buttonIssuedBooking.Location = new Point(1106, 275);
+            buttonIssuedBooking.Margin = new Padding(3, 4, 3, 4);
+            buttonIssuedBooking.Name = "buttonIssuedBooking";
+            buttonIssuedBooking.Size = new Size(226, 37);
+            buttonIssuedBooking.TabIndex = 11;
+            buttonIssuedBooking.Text = "Заказ выдан";
+            buttonIssuedBooking.UseVisualStyleBackColor = true;
+            buttonIssuedBooking.Click += buttonIssuedBooking_Click;
+            // 
+            // buttonBookingReady
+            // 
+            buttonBookingReady.Location = new Point(1106, 205);
+            buttonBookingReady.Margin = new Padding(3, 4, 3, 4);
+            buttonBookingReady.Name = "buttonBookingReady";
+            buttonBookingReady.Size = new Size(226, 37);
+            buttonBookingReady.TabIndex = 10;
+            buttonBookingReady.Text = "Заказ принимается";
+            buttonBookingReady.UseVisualStyleBackColor = true;
+            buttonBookingReady.Click += buttonBookingReady_Click;
+            // 
+            // buttonTakeBookingInWork
+            // 
+            buttonTakeBookingInWork.Location = new Point(1106, 133);
+            buttonTakeBookingInWork.Margin = new Padding(3, 4, 3, 4);
+            buttonTakeBookingInWork.Name = "buttonTakeBookingInWork";
+            buttonTakeBookingInWork.Size = new Size(226, 37);
+            buttonTakeBookingInWork.TabIndex = 9;
+            buttonTakeBookingInWork.Text = "Отдать на выполнение";
+            buttonTakeBookingInWork.UseVisualStyleBackColor = true;
+            buttonTakeBookingInWork.Click += buttonTakeBookingInWork_Click;
+            // 
+            // buttonCreateBooking
+            // 
+            buttonCreateBooking.Location = new Point(1106, 61);
+            buttonCreateBooking.Margin = new Padding(3, 4, 3, 4);
+            buttonCreateBooking.Name = "buttonCreateBooking";
+            buttonCreateBooking.Size = new Size(226, 37);
+            buttonCreateBooking.TabIndex = 8;
+            buttonCreateBooking.Text = "Создать бронь";
+            buttonCreateBooking.UseVisualStyleBackColor = true;
+            buttonCreateBooking.Click += buttonCreateBooking_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 30);
+            dataGridView.Margin = new Padding(3, 4, 3, 4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(1049, 570);
+            dataGridView.TabIndex = 7;
+            dataGridView.CellContentClick += dataGridView_CellContentClick;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(1106, 346);
+            button1.Name = "button1";
+            button1.Size = new Size(226, 37);
+            button1.TabIndex = 12;
+            button1.Text = "Тест добавления";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // button2
+            // 
+            button2.Location = new Point(1106, 417);
+            button2.Name = "button2";
+            button2.Size = new Size(226, 37);
+            button2.TabIndex = 13;
+            button2.Text = "Тест удаления";
+            button2.UseVisualStyleBackColor = true;
+            button2.Click += button2_Click;
+            // 
+            // button3
+            // 
+            button3.Location = new Point(1106, 484);
+            button3.Name = "button3";
+            button3.Size = new Size(226, 37);
+            button3.TabIndex = 14;
+            button3.Text = "Тест обновления";
+            button3.UseVisualStyleBackColor = true;
+            button3.Click += button3_Click;
+            // 
+            // FormMain
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(1387, 600);
+            Controls.Add(button3);
+            Controls.Add(button2);
+            Controls.Add(button1);
+            Controls.Add(buttonIssuedBooking);
+            Controls.Add(buttonBookingReady);
+            Controls.Add(buttonTakeBookingInWork);
+            Controls.Add(buttonCreateBooking);
+            Controls.Add(dataGridView);
+            Controls.Add(menuStrip1);
+            MainMenuStrip = menuStrip1;
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormMain";
+            Text = "Главное окно";
+            Load += FormMain_Load;
+            menuStrip1.ResumeLayout(false);
+            menuStrip1.PerformLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip1;
+        private ToolStripMenuItem объектыToolStripMenuItem;
+        private ToolStripMenuItem postToolStripMenuItem;
+        private ToolStripMenuItem workerToolStripMenuItem;
+        private ToolStripMenuItem roomToolStripMenuItem;
+        private Button buttonIssuedBooking;
+        private Button buttonBookingReady;
+        private Button buttonTakeBookingInWork;
+        private Button buttonCreateBooking;
+        private DataGridView dataGridView;
+        private ToolStripMenuItem клиентToolStripMenuItem;
+        private Button button1;
+        private Button button2;
+        private Button button3;
+    }
+}

Hotel/HotelView/FormMain.cs

@@ -0,0 +1,285 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using HotelDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.Xml.Linq;
+
+namespace HotelView
+{
+    public partial class FormMain : Form
+    {
+
+        private readonly IBookingLogic _logic;
+        private readonly IRoomLogic _logicR;
+        private readonly IClientLogic _logicC;
+
+        public FormMain(IBookingLogic logic, IRoomLogic logicR, IClientLogic logicC)
+        {
+            InitializeComponent();
+            _logic = logic;
+            _logicR = logicR;
+            _logicC = logicC;
+        }
+
+        private void FormMain_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void dataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
+        {
+
+        }
+        private void LoadData()
+        {
+            var _list = _logic.ReadList(null);
+            if (_list != null)
+            {
+                dataGridView.DataSource = _list;
+                dataGridView.Columns["RoomId"].Visible = false;
+                dataGridView.Columns["ClientId"].Visible = false;
+                dataGridView.Columns["Number"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                dataGridView.Columns["Surname"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            }
+        }
+
+        private void clientToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormClients));
+            if (service is FormClients form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void postToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormPosts));
+            if (service is FormPosts form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void workerToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormWorkers));
+            if (service is FormWorkers form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void roomToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormRooms));
+            if (service is FormRooms form)
+            {
+                form.ShowDialog();
+            }
+        }
+
+        private void buttonCreateBooking_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormBooking));
+            if (service is FormBooking form)
+            {
+                form.ShowDialog();
+                LoadData();
+            }
+        }
+
+        private void buttonTakeBookingInWork_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                try
+                {
+                    var operationResult = _logic.TakeBookingInWork(new BookingBindingModel
+                    {
+                        Id = id,
+                        Status = Enum.Parse<HotelDataModels.Enums.AcceptanceStatus>(dataGridView.SelectedRows[0].Cells["Status"].Value.ToString()),
+                    });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void buttonBookingReady_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                try
+                {
+                    var operationResult = _logic.FinishBooking(new BookingBindingModel
+                    {
+                        Id = id,
+                        Status = Enum.Parse<HotelDataModels.Enums.AcceptanceStatus>(dataGridView.SelectedRows[0].Cells["Status"].Value.ToString()),
+                    });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Доп информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void buttonIssuedBooking_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                try
+                {
+                    var operationResult = _logic.DeliveryBooking(new BookingBindingModel
+                    {
+                        Id = id,
+                        Status = Enum.Parse<HotelDataModels.Enums.AcceptanceStatus>(dataGridView.SelectedRows[0].Cells["Status"].Value.ToString()),
+                    });
+                    if (!operationResult)
+                    {
+                        throw new Exception("Ошибка при сохранении. Доп информация в логах.");
+                    }
+                    LoadData();
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                var elementR = _logicR.ReadElement(new RoomSearchModel
+                {
+                    Number = 1
+                });
+                var elementC = _logicC.ReadElement(new ClientSearchModel
+                {
+                    Name = "Игооооорь"
+                });
+                for (int i = 0; i < 1000; i++)
+                {
+                    var operationResult = _logic.Create(new BookingBindingModel
+                    {
+                        RoomId = elementR?.Id ?? 0,
+                        ClientId = elementC?.Id ?? 0,
+                        ArrivalDate = DateTime.Now,
+                        DepartureDate = DateTime.Now,
+                        NumberHoursSpent = 5,
+                        Status = HotelDataModels.Enums.AcceptanceStatus.Неизвестен,
+                        TotalCost =123
+                    });
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new BookingSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Delete(new BookingBindingModel
+                    {
+                        Id = i,
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new BookingSearchModel
+                {
+                    Id = id
+                });
+                var elementR = _logicR.ReadElement(new RoomSearchModel
+                {
+                    Number = 1
+                });
+                var elementC = _logicC.ReadElement(new ClientSearchModel
+                {
+                    Name = "Игооооорь"
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Update(new BookingBindingModel
+                    {
+                        RoomId = elementR?.Id ?? 0,
+                        ClientId = elementC?.Id ?? 0,
+                        ArrivalDate = DateTime.Now,
+                        DepartureDate = DateTime.Now,
+                        NumberHoursSpent = 5,
+                        Status = HotelDataModels.Enums.AcceptanceStatus.Неизвестен,
+                        TotalCost = 100
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+    }
+}
+

Hotel/HotelView/FormMain.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="menuStrip1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

Hotel/HotelView/FormPost.Designer.cs

@@ -0,0 +1,100 @@
+namespace HotelView
+{
+    partial class FormPost
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            label1 = new Label();
+            textBoxPost = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(14, 27);
+            label1.Name = "label1";
+            label1.Size = new Size(89, 20);
+            label1.TabIndex = 0;
+            label1.Text = "Должность:";
+            // 
+            // textBoxPost
+            // 
+            textBoxPost.Location = new Point(99, 24);
+            textBoxPost.Margin = new Padding(3, 4, 3, 4);
+            textBoxPost.Name = "textBoxPost";
+            textBoxPost.Size = new Size(237, 27);
+            textBoxPost.TabIndex = 2;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(248, 73);
+            buttonCancel.Margin = new Padding(3, 4, 3, 4);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(88, 40);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(138, 73);
+            buttonSave.Margin = new Padding(3, 4, 3, 4);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(95, 40);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // FormPost
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(364, 136);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxPost);
+            Controls.Add(label1);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormPost";
+            Text = "Покупатель";
+            Load += FormPost_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private TextBox textBoxPost;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

Hotel/HotelView/FormPost.cs

@@ -0,0 +1,84 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HotelView
+{
+    public partial class FormPost : Form
+    {
+
+        private readonly IPostLogic _logic;
+        private int? _id;
+
+        public int Id { set { _id = value; } }
+
+        public FormPost(IPostLogic logic)
+        {
+            InitializeComponent();
+            _logic = logic;
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxPost.Text))
+            {
+                MessageBox.Show("Заполните Имя", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+
+                return;
+            }
+            try
+            {
+                var model = new PostBindingModel
+                {
+                    Id = _id ?? 0,
+                    PostName = textBoxPost.Text,
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Доп информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormPost_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                try
+                {
+                    var view = _logic.ReadElement(new PostSearchModel { Id = _id.Value });
+                    if (view != null)
+                    {
+                        textBoxPost.Text = view.PostName;
+                    }
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+    }
+}

Hotel/HotelView/FormPost.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormPosts.Designer.cs

@@ -0,0 +1,152 @@
+namespace HotelView
+{
+    partial class FormPosts
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            button1 = new Button();
+            button2 = new Button();
+            button3 = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Margin = new Padding(3, 4, 3, 4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.ShowCellToolTips = false;
+            dataGridView.ShowEditingIcon = false;
+            dataGridView.Size = new Size(600, 600);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(645, 155);
+            buttonDel.Margin = new Padding(3, 4, 3, 4);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(142, 47);
+            buttonDel.TabIndex = 7;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += buttonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(645, 87);
+            buttonUpd.Margin = new Padding(3, 4, 3, 4);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(142, 47);
+            buttonUpd.TabIndex = 6;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += buttonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(645, 20);
+            buttonAdd.Margin = new Padding(3, 4, 3, 4);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(142, 47);
+            buttonAdd.TabIndex = 5;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(645, 224);
+            button1.Name = "button1";
+            button1.Size = new Size(142, 46);
+            button1.TabIndex = 8;
+            button1.Text = "Тест создания";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // button2
+            // 
+            button2.Location = new Point(645, 293);
+            button2.Name = "button2";
+            button2.Size = new Size(142, 46);
+            button2.TabIndex = 9;
+            button2.Text = "Тест удаления";
+            button2.UseVisualStyleBackColor = true;
+            button2.Click += button2_Click;
+            // 
+            // button3
+            // 
+            button3.Location = new Point(645, 358);
+            button3.Name = "button3";
+            button3.Size = new Size(142, 46);
+            button3.TabIndex = 10;
+            button3.Text = "Тест обновления";
+            button3.UseVisualStyleBackColor = true;
+            button3.Click += button3_Click;
+            // 
+            // FormPosts
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(818, 600);
+            Controls.Add(button3);
+            Controls.Add(button2);
+            Controls.Add(button1);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormPosts";
+            Text = "Покупатели";
+            Load += FormPosts_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private Button button1;
+        private Button button2;
+        private Button button3;
+    }
+}

Hotel/HotelView/FormPosts.cs

@@ -0,0 +1,183 @@
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using HotelContracts.SearchModels;
+
+namespace HotelView
+{
+    public partial class FormPosts : Form
+    {
+        private readonly IPostLogic _logic;
+        public FormPosts(IPostLogic logic)
+        {
+            InitializeComponent();
+            _logic = logic;
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["PostName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormPost));
+            if (service is FormPost 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(FormPost));
+                if (service is FormPost 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);
+                    try
+                    {
+                        if (!_logic.Delete(new PostBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Доп информация в логах");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void FormPosts_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                for (int i = 0; i < 1000; i++)
+                {
+                    var operationResult = _logic.Create(new PostBindingModel
+                    {
+                        PostName = "Горничная"
+                    });
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new PostSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Delete(new PostBindingModel
+                    {
+                        Id = i,
+
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new PostSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Update(new PostBindingModel
+                    {
+                        Id = i,
+                        PostName = "Горничный"
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Hotel/HotelView/FormPosts.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormRoom.Designer.cs

@@ -0,0 +1,212 @@
+namespace HotelView
+{
+    partial class FormRoom
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            textBoxNumber = new TextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label3 = new Label();
+            label4 = new Label();
+            label5 = new Label();
+            textBoxFloor = new TextBox();
+            label6 = new Label();
+            comboBoxWorker = new ComboBox();
+            textBoxNumberOfBeds = new TextBox();
+            textBoxCondition = new TextBox();
+            textBoxCost = new TextBox();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(14, 27);
+            label1.Name = "label1";
+            label1.Size = new Size(60, 20);
+            label1.TabIndex = 0;
+            label1.Text = "Номер:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(14, 68);
+            label2.Name = "label2";
+            label2.Size = new Size(46, 20);
+            label2.TabIndex = 1;
+            label2.Text = "Этаж:";
+            // 
+            // textBoxNumber
+            // 
+            textBoxNumber.Location = new Point(111, 24);
+            textBoxNumber.Margin = new Padding(3, 4, 3, 4);
+            textBoxNumber.Name = "textBoxNumber";
+            textBoxNumber.Size = new Size(237, 27);
+            textBoxNumber.TabIndex = 2;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(260, 278);
+            buttonCancel.Margin = new Padding(3, 4, 3, 4);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(88, 40);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(159, 278);
+            buttonSave.Margin = new Padding(3, 4, 3, 4);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(95, 40);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(14, 108);
+            label3.Name = "label3";
+            label3.Size = new Size(148, 20);
+            label3.TabIndex = 8;
+            label3.Text = "Кол. спальных мест:";
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(14, 150);
+            label4.Name = "label4";
+            label4.Size = new Size(86, 20);
+            label4.TabIndex = 9;
+            label4.Text = "Состояние:";
+            // 
+            // label5
+            // 
+            label5.AutoSize = true;
+            label5.Location = new Point(14, 190);
+            label5.Name = "label5";
+            label5.Size = new Size(81, 20);
+            label5.TabIndex = 10;
+            label5.Text = "Цена(час):";
+            // 
+            // textBoxFloor
+            // 
+            textBoxFloor.Location = new Point(111, 65);
+            textBoxFloor.Name = "textBoxFloor";
+            textBoxFloor.Size = new Size(237, 27);
+            textBoxFloor.TabIndex = 11;
+            // 
+            // label6
+            // 
+            label6.AutoSize = true;
+            label6.Location = new Point(14, 228);
+            label6.Name = "label6";
+            label6.Size = new Size(77, 20);
+            label6.TabIndex = 12;
+            label6.Text = "Работник:";
+            // 
+            // comboBoxWorker
+            // 
+            comboBoxWorker.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxWorker.FormattingEnabled = true;
+            comboBoxWorker.Location = new Point(111, 225);
+            comboBoxWorker.Name = "comboBoxWorker";
+            comboBoxWorker.Size = new Size(237, 28);
+            comboBoxWorker.TabIndex = 13;
+            // 
+            // textBoxNumberOfBeds
+            // 
+            textBoxNumberOfBeds.Location = new Point(168, 108);
+            textBoxNumberOfBeds.Name = "textBoxNumberOfBeds";
+            textBoxNumberOfBeds.Size = new Size(178, 27);
+            textBoxNumberOfBeds.TabIndex = 14;
+            // 
+            // textBoxCondition
+            // 
+            textBoxCondition.Location = new Point(111, 147);
+            textBoxCondition.Name = "textBoxCondition";
+            textBoxCondition.Size = new Size(237, 27);
+            textBoxCondition.TabIndex = 15;
+            // 
+            // textBoxCost
+            // 
+            textBoxCost.Location = new Point(111, 187);
+            textBoxCost.Name = "textBoxCost";
+            textBoxCost.Size = new Size(235, 27);
+            textBoxCost.TabIndex = 16;
+            // 
+            // FormRoom
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(368, 331);
+            Controls.Add(textBoxCost);
+            Controls.Add(textBoxCondition);
+            Controls.Add(textBoxNumberOfBeds);
+            Controls.Add(comboBoxWorker);
+            Controls.Add(label6);
+            Controls.Add(textBoxFloor);
+            Controls.Add(label5);
+            Controls.Add(label4);
+            Controls.Add(label3);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxNumber);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormRoom";
+            Text = "Комнаты";
+            Load += FormRoom_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private TextBox textBoxNumber;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label3;
+        private Label label4;
+        private Label label5;
+        private TextBox textBoxFloor;
+        private Label label6;
+        private ComboBox comboBoxWorker;
+        private TextBox textBoxNumberOfBeds;
+        private TextBox textBoxCondition;
+        private TextBox textBoxCost;
+    }
+}

Hotel/HotelView/FormRoom.cs

@@ -0,0 +1,105 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using HotelDatabaseImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HotelView
+{
+    public partial class FormRoom : Form
+    {
+
+        private readonly IRoomLogic _logicR;
+        private readonly IWorkerLogic _logicW;
+        private int? _id;
+
+        public int Id { set { _id = value; } }
+
+        public FormRoom(IWorkerLogic logicW, IRoomLogic logicR)
+        {
+            InitializeComponent();
+            _logicW = logicW;
+            _logicR = logicR;
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxNumber.Text))
+            {
+                MessageBox.Show("Заполните номер", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+
+                return;
+            }
+            if (comboBoxWorker.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите рабочего", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            try
+            {
+                var model = new RoomBindingModel
+                {
+                    Id = _id ?? 0,
+                    Number = Convert.ToInt32(textBoxNumber.Text),
+                    Floor = Convert.ToInt32(textBoxFloor.Text),
+                    NumberOfBeds = Convert.ToInt32(textBoxNumberOfBeds.Text),
+                    Condition = textBoxCondition.Text,
+                    Cost = Convert.ToInt32(textBoxCost.Text),
+                    WorkerId = Convert.ToInt32(comboBoxWorker.SelectedValue),
+                };
+                
+                var operationResult = _id.HasValue ? _logicR.Update(model) : _logicR.Create(model);
+                var provercaMade = _logicR.ProvercaMade(model);
+                if (!provercaMade)
+                {
+                    _logicR.Delete(model);
+                    throw new Exception("Данный работник не горнечная");
+                }
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormRoom_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                var workerList = _logicW.ReadList(null);
+                if (workerList != null)
+                {
+                    comboBoxWorker.DisplayMember = "FIO";
+                    comboBoxWorker.ValueMember = "Id";
+                    comboBoxWorker.DataSource = workerList;
+                    comboBoxWorker.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Hotel/HotelView/FormRoom.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormRooms.Designer.cs

@@ -0,0 +1,152 @@
+namespace HotelView
+{
+    partial class FormRooms
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            button1 = new Button();
+            button2 = new Button();
+            button3 = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Margin = new Padding(3, 4, 3, 4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.ShowCellToolTips = false;
+            dataGridView.ShowEditingIcon = false;
+            dataGridView.Size = new Size(840, 600);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(881, 182);
+            buttonDel.Margin = new Padding(3, 4, 3, 4);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(144, 47);
+            buttonDel.TabIndex = 7;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += buttonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(881, 118);
+            buttonUpd.Margin = new Padding(3, 4, 3, 4);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(144, 47);
+            buttonUpd.TabIndex = 6;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += buttonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(881, 53);
+            buttonAdd.Margin = new Padding(3, 4, 3, 4);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(144, 47);
+            buttonAdd.TabIndex = 5;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(881, 247);
+            button1.Name = "button1";
+            button1.Size = new Size(144, 47);
+            button1.TabIndex = 8;
+            button1.Text = "Тест добавления";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // button2
+            // 
+            button2.Location = new Point(881, 313);
+            button2.Name = "button2";
+            button2.Size = new Size(144, 47);
+            button2.TabIndex = 9;
+            button2.Text = "Тест удаления";
+            button2.UseVisualStyleBackColor = true;
+            button2.Click += button2_Click;
+            // 
+            // button3
+            // 
+            button3.Location = new Point(881, 380);
+            button3.Name = "button3";
+            button3.Size = new Size(144, 47);
+            button3.TabIndex = 10;
+            button3.Text = "Тест обновления";
+            button3.UseVisualStyleBackColor = true;
+            button3.Click += button3_Click;
+            // 
+            // FormRooms
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(1049, 600);
+            Controls.Add(button3);
+            Controls.Add(button2);
+            Controls.Add(button1);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormRooms";
+            Text = "Покупатели";
+            Load += FormBuyers_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private Button button1;
+        private Button button2;
+        private Button button3;
+    }
+}

Hotel/HotelView/FormRooms.cs

@@ -0,0 +1,200 @@
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using HotelContracts.SearchModels;
+using HotelDatabaseImplement.Models;
+
+namespace HotelView
+{
+    public partial class FormRooms : Form
+    {
+        private readonly IRoomLogic _logic;
+        private readonly IWorkerLogic _logicW;
+        public FormRooms(IRoomLogic logic, IWorkerLogic logicW)
+        {
+            InitializeComponent();
+            _logic = logic;
+            _logicW = logicW;
+
+        }
+
+        private void FormBuyers_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["WorkerId"].Visible = false;
+                    dataGridView.Columns["WorkerFIO"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormRoom));
+            if (service is FormRoom 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(FormRoom));
+                if (service is FormRoom 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 number = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Number"].Value);
+                    try
+                    {
+                        if (!_logic.Delete(new RoomBindingModel { Number = number }))
+                        {
+                            throw new Exception("Ошибка при удалении. Доп информация в логах");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                var element = _logicW.ReadElement(new WorkerSearchModel
+                {
+                    FIO = "Паша Пашок Паша"
+                });
+                for (int i = 1; i < 1001; i++)
+                {
+                    var operationResult = _logic.Create(new RoomBindingModel
+                    {
+                         WorkerId = element?.Id ?? 0,
+                         Number = i,
+                         Floor = 1,
+                         NumberOfBeds = 4,
+                         Condition = "Норм",
+                         Cost = 350
+                    });
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int Number = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Number"].Value);
+                var element = _logic.ReadElement(new RoomSearchModel
+                {
+                    Number = Number
+                });
+                for (int i = Number; i < Number + 1000; i++)
+                {
+                    var operationResult = _logic.Delete(new RoomBindingModel
+                    {
+                        Number = i
+                    });
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new RoomSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Update(new RoomBindingModel
+                    {
+                        Id = i,
+                        WorkerId = element?.Id ?? 0,
+                        Number = i+1000,
+                        Floor = 2,
+                        NumberOfBeds = 5,
+                        Condition = "Отличненько",
+                        Cost = 400
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Hotel/HotelView/FormRooms.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormWorker.Designer.cs

@@ -0,0 +1,213 @@
+namespace HotelView
+{
+    partial class FormWorker
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            textBoxFIO = new TextBox();
+            dateTimePicker = new DateTimePicker();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label3 = new Label();
+            label4 = new Label();
+            label5 = new Label();
+            label6 = new Label();
+            textBoxWorkExperience = new TextBox();
+            textBoxSalary = new TextBox();
+            textBoxPhone = new TextBox();
+            comboBoxPost = new ComboBox();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(14, 23);
+            label1.Name = "label1";
+            label1.Size = new Size(45, 20);
+            label1.TabIndex = 0;
+            label1.Text = "ФИО:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(14, 63);
+            label2.Name = "label2";
+            label2.Size = new Size(119, 20);
+            label2.TabIndex = 1;
+            label2.Text = "Дата рождения:";
+            // 
+            // textBoxFIO
+            // 
+            textBoxFIO.Location = new Point(133, 20);
+            textBoxFIO.Margin = new Padding(3, 4, 3, 4);
+            textBoxFIO.Name = "textBoxFIO";
+            textBoxFIO.Size = new Size(237, 27);
+            textBoxFIO.TabIndex = 2;
+            // 
+            // dateTimePicker
+            // 
+            dateTimePicker.Location = new Point(133, 58);
+            dateTimePicker.Margin = new Padding(3, 4, 3, 4);
+            dateTimePicker.Name = "dateTimePicker";
+            dateTimePicker.Size = new Size(237, 27);
+            dateTimePicker.TabIndex = 3;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(282, 266);
+            buttonCancel.Margin = new Padding(3, 4, 3, 4);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(88, 40);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(171, 266);
+            buttonSave.Margin = new Padding(3, 4, 3, 4);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(95, 40);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(14, 105);
+            label3.Name = "label3";
+            label3.Size = new Size(105, 20);
+            label3.TabIndex = 8;
+            label3.Text = "Опыт работы:";
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(14, 144);
+            label4.Name = "label4";
+            label4.Size = new Size(76, 20);
+            label4.TabIndex = 9;
+            label4.Text = "Зарплата:";
+            // 
+            // label5
+            // 
+            label5.AutoSize = true;
+            label5.Location = new Point(14, 184);
+            label5.Name = "label5";
+            label5.Size = new Size(72, 20);
+            label5.TabIndex = 10;
+            label5.Text = "Телефон:";
+            // 
+            // label6
+            // 
+            label6.AutoSize = true;
+            label6.Location = new Point(14, 224);
+            label6.Name = "label6";
+            label6.Size = new Size(89, 20);
+            label6.TabIndex = 11;
+            label6.Text = "Должность:";
+            // 
+            // textBoxWorkExperience
+            // 
+            textBoxWorkExperience.Location = new Point(133, 102);
+            textBoxWorkExperience.Name = "textBoxWorkExperience";
+            textBoxWorkExperience.Size = new Size(236, 27);
+            textBoxWorkExperience.TabIndex = 12;
+            // 
+            // textBoxSalary
+            // 
+            textBoxSalary.Location = new Point(134, 141);
+            textBoxSalary.Name = "textBoxSalary";
+            textBoxSalary.Size = new Size(236, 27);
+            textBoxSalary.TabIndex = 13;
+            // 
+            // textBoxPhone
+            // 
+            textBoxPhone.Location = new Point(133, 177);
+            textBoxPhone.Name = "textBoxPhone";
+            textBoxPhone.Size = new Size(237, 27);
+            textBoxPhone.TabIndex = 14;
+            // 
+            // comboBoxPost
+            // 
+            comboBoxPost.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxPost.FormattingEnabled = true;
+            comboBoxPost.Location = new Point(135, 221);
+            comboBoxPost.Name = "comboBoxPost";
+            comboBoxPost.Size = new Size(234, 28);
+            comboBoxPost.TabIndex = 15;
+            // 
+            // FormWorker
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(429, 345);
+            Controls.Add(comboBoxPost);
+            Controls.Add(textBoxPhone);
+            Controls.Add(textBoxSalary);
+            Controls.Add(textBoxWorkExperience);
+            Controls.Add(label6);
+            Controls.Add(label5);
+            Controls.Add(label4);
+            Controls.Add(label3);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(dateTimePicker);
+            Controls.Add(textBoxFIO);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormWorker";
+            Text = "Покупатель";
+            Load += FormWorker_Load;
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private TextBox textBoxFIO;
+        private DateTimePicker dateTimePicker;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label3;
+        private Label label4;
+        private Label label5;
+        private Label label6;
+        private TextBox textBoxWorkExperience;
+        private TextBox textBoxSalary;
+        private TextBox textBoxPhone;
+        private ComboBox comboBoxPost;
+    }
+}

Hotel/HotelView/FormWorker.cs

@@ -0,0 +1,98 @@
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace HotelView
+{
+    public partial class FormWorker : Form
+    {
+
+        private readonly IWorkerLogic _logicW;
+        private readonly IPostLogic _logicP;
+        private int? _id;
+
+        public int Id { set { _id = value; } }
+
+        public FormWorker(IWorkerLogic logicW, IPostLogic logicP)
+        {
+            InitializeComponent();
+            _logicW = logicW;
+            _logicP = logicP;
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxFIO.Text))
+            {
+                MessageBox.Show("Заполните Имя", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+
+                return;
+            }
+            if (comboBoxPost.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите изделие", "Ошибка",
+               MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            try
+            {
+                var model = new WorkerBindingModel
+                {
+                    Id = _id ?? 0,
+                    FIO = textBoxFIO.Text,
+                    DateOfBirth = dateTimePicker.Value,
+                    WorkExperience = Convert.ToInt32(textBoxWorkExperience.Text),
+                    Salary = Convert.ToInt32(textBoxSalary.Text),
+                    Phone = textBoxPhone.Text,
+                    PostId = Convert.ToInt32(comboBoxPost.SelectedValue),
+                };
+                var operationResult = _id.HasValue ? _logicW.Update(model) : _logicW.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Доп информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormWorker_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                var postList = _logicP.ReadList(null);
+                if (postList != null)
+                {
+                    comboBoxPost.DisplayMember = "PostName";
+                    comboBoxPost.ValueMember = "Id";
+                    comboBoxPost.DataSource = postList;
+                    comboBoxPost.SelectedItem = null;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}
+

Hotel/HotelView/FormWorker.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/FormWorkers.Designer.cs

@@ -0,0 +1,152 @@
+namespace HotelView
+{
+    partial class FormWorkers
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            button1 = new Button();
+            button2 = new Button();
+            button3 = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.BackgroundColor = Color.White;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Left;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Margin = new Padding(3, 4, 3, 4);
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.ShowCellToolTips = false;
+            dataGridView.ShowEditingIcon = false;
+            dataGridView.Size = new Size(829, 600);
+            dataGridView.TabIndex = 1;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(888, 185);
+            buttonDel.Margin = new Padding(3, 4, 3, 4);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(146, 47);
+            buttonDel.TabIndex = 7;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += buttonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(888, 117);
+            buttonUpd.Margin = new Padding(3, 4, 3, 4);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(146, 47);
+            buttonUpd.TabIndex = 6;
+            buttonUpd.Text = "Изменить";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += buttonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(888, 50);
+            buttonAdd.Margin = new Padding(3, 4, 3, 4);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(146, 47);
+            buttonAdd.TabIndex = 5;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += buttonAdd_Click;
+            // 
+            // button1
+            // 
+            button1.Location = new Point(888, 251);
+            button1.Name = "button1";
+            button1.Size = new Size(146, 47);
+            button1.TabIndex = 8;
+            button1.Text = "Тест добавления";
+            button1.UseVisualStyleBackColor = true;
+            button1.Click += button1_Click;
+            // 
+            // button2
+            // 
+            button2.Location = new Point(888, 316);
+            button2.Name = "button2";
+            button2.Size = new Size(146, 47);
+            button2.TabIndex = 9;
+            button2.Text = "Тест удаления";
+            button2.UseVisualStyleBackColor = true;
+            button2.Click += button2_Click;
+            // 
+            // button3
+            // 
+            button3.Location = new Point(888, 382);
+            button3.Name = "button3";
+            button3.Size = new Size(146, 47);
+            button3.TabIndex = 10;
+            button3.Text = "Тест обновления";
+            button3.UseVisualStyleBackColor = true;
+            button3.Click += button3_Click;
+            // 
+            // FormWorkers
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(1070, 600);
+            Controls.Add(button3);
+            Controls.Add(button2);
+            Controls.Add(button1);
+            Controls.Add(buttonDel);
+            Controls.Add(buttonUpd);
+            Controls.Add(buttonAdd);
+            Controls.Add(dataGridView);
+            Margin = new Padding(3, 4, 3, 4);
+            Name = "FormWorkers";
+            Text = "Покупатели";
+            Load += FormWorkers_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private Button button1;
+        private Button button2;
+        private Button button3;
+    }
+}

Hotel/HotelView/FormWorkers.cs

@@ -0,0 +1,199 @@
+using Microsoft.EntityFrameworkCore.Diagnostics;
+using HotelContracts.BindingModels;
+using HotelContracts.BusinessLogicsContracts;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using HotelContracts.SearchModels;
+
+namespace HotelView
+{
+    public partial class FormWorkers : Form
+    {
+        private readonly IWorkerLogic _logic;
+        private readonly IPostLogic _logicP;
+        public FormWorkers(IWorkerLogic logic, IPostLogic logicP)
+        {
+            InitializeComponent();
+            _logic = logic;
+            _logicP = logicP;
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["PostId"].Visible = false;
+                    dataGridView.Columns["PostName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormWorker));
+            if (service is FormWorker 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(FormWorker));
+                if (service is FormWorker 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);
+                    try
+                    {
+                        if (!_logic.Delete(new WorkerBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Доп информация в логах");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void FormWorkers_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                var element = _logicP.ReadElement(new PostSearchModel
+                {
+                    PostName = "Горничная"
+                });
+                for (int i = 0; i < 1000; i++)
+                {
+                    var operationResult = _logic.Create(new WorkerBindingModel
+                    {
+                        PostId = element?.Id ?? 0,
+		                FIO = "Паша Пашок Паша",
+		                DateOfBirth =DateTime.Now,
+                        WorkExperience = 10,
+		                Salary = 1024,
+		                Phone = "52354347356"
+                    });
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new WorkerSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Delete(new WorkerBindingModel
+                    {
+                        Id = i,
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void button3_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                DateTime start = DateTime.Now;
+                int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                var element = _logic.ReadElement(new WorkerSearchModel
+                {
+                    Id = id
+                });
+                for (int i = id; i < id + 1000; i++)
+                {
+                    var operationResult = _logic.Update(new WorkerBindingModel
+                    {
+                        Id = i,
+                        PostId = element?.Id ?? 0,
+                        FIO = "Паша)",
+                        DateOfBirth = DateTime.Now,
+                        WorkExperience = 5,
+                        Salary = 666,
+                        Phone = "Норм номер"
+                    });
+
+                }
+                DateTime stop = DateTime.Now;
+                LoadData();
+                MessageBox.Show((stop - start).Milliseconds.ToString(), "Test", MessageBoxButtons.OK);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Hotel/HotelView/FormWorkers.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema 
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

Hotel/HotelView/HotelView.csproj

@@ -8,4 +8,20 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.16">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\HotelBusinessLogic\HotelBusinessLogic.csproj" />
+    <ProjectReference Include="..\HotelContracts\HotelContracts.csproj" />
+    <ProjectReference Include="..\HotelDatabaseImplement\HotelDatabaseImplement.csproj" />
+    <ProjectReference Include="..\HotelDataModels\HotelDataModels.csproj" />
+  </ItemGroup>
+
 </Project>

Hotel/HotelView/Program.cs

@@ -1,7 +1,15 @@
+using HotelBusinessLogic.BusinessLogics;
+using HotelContracts.BusinessLogicsContracts;
+using HotelContracts.StoragesContracts;
+using Microsoft.Extensions.DependencyInjection;
+using HotelDatabaseImplement.Implements;
+using System;
 namespace HotelView
 {
 	internal static class Program
 	{
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
         ///  The main entry point for the application.
         /// </summary>
@@ -11,7 +19,35 @@ namespace HotelView
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-			Application.Run(new Form1());
+            var services = new ServiceCollection();
+            ConfigureServices(services);
+            _serviceProvider = services.BuildServiceProvider();
+            Application.Run(_serviceProvider.GetRequiredService<FormMain>());
+        }
+        private static void ConfigureServices(ServiceCollection services)
+        {
+            services.AddTransient<IBookingStorage, BookingStorage>();
+            services.AddTransient<IClientStorage, ClientStorage>();
+            services.AddTransient<IPostStorage, PostStorage>();
+            services.AddTransient<IRoomStorage, RoomStorage>();
+            services.AddTransient<IWorkerStorage, WorkerStorage>();
+
+            services.AddTransient<IBookingLogic, BookingLogic>();
+            services.AddTransient<IClientLogic, ClientLogic>();
+            services.AddTransient<IPostLogic, PostLogic>();
+            services.AddTransient<IRoomLogic, RoomLogic>();
+            services.AddTransient<IWorkerLogic, WorkerLogic>();
+
+            services.AddTransient<FormMain>();
+            services.AddTransient<FormClients>();
+            services.AddTransient<FormClient>();
+            services.AddTransient<FormPosts>();
+            services.AddTransient<FormPost>();
+            services.AddTransient<FormWorker>();
+            services.AddTransient<FormWorkers>();
+            services.AddTransient<FormRooms>();
+            services.AddTransient<FormRoom>();
+            services.AddTransient<FormBooking>();
         }
     }
 }