Опять добавил в новое сущность, но оно не правильно добавляется :(

Hotel/HostrelHeadwaiterApp/Controllers/HomeController.cs

@@ -550,6 +550,7 @@ namespace HostrelHeadwaiterApp.Controllers
                 Id = conferenceBooking,
                 ConferenceId = conference,
                 NameHall = conferenceBookingElem.NameHall,
+                StartDate = conferenceBookingElem.StartDate,
                 HeadwaiterId = conferenceBookingElem.HeadwaiterId,
             });
             Response.Redirect("ListConferenceBookings");

Hotel/HostrelHeadwaiterApp/Views/Home/AddConferenceBookingToConference.cshtml

@@ -18,6 +18,15 @@
 			<select id="conferenceBooking" name="conferenceBooking" class="form-control" asp-items="@(new SelectList(@ViewBag.ConferenceBookings, "Id", "NameHall"))"></select>
 		</div>
 	</div>
+	<div class="u-form-email u-form-group u-label-top">
+        <label class="u-label u-text-custom-color-1 u-label-2">Начало</label>
+        <input
+			id="startDate"    
+			type="datetime-local"
+            placeholder="Выберите дату начала"
+            name="startDate"
+            class="form-control"/>
+        </div>
 	<br>
      <div class="u-container-layout u-container-layout-2">
         <input type="submit" value="Добавить конференцию" class="btn btn-outline-dark text-center d-flex justify-content-md-center" />

Hotel/HotelBusinessLogic/BusinessLogics/ReportLogicHeadwaiter.cs

@@ -105,6 +105,7 @@ namespace HotelBusinessLogic.BusinessLogics
                         DinnerName = mp.DinnerName,
                         DinnerPrice = mp.DinnerPrice,
                         NameHall = conferenceBooking.NameHall
+                        
                     });
                 }
             }

Hotel/HotelContracts/BindingModels/ConferenceBookingBindingModel.cs

@@ -10,6 +10,8 @@ namespace HotelContracts.BindingModels
 
         public string NameHall { get; set; } = string.Empty;
 
+        public DateTime? StartDate { get; set; } = DateTime.Now;
+
         public int Id { get; set; }
         public Dictionary<int, IDinnerModel> ConferenceBookingDinners { get; set; } = new();
     }

Hotel/HotelContracts/ViewModels/ConferenceBookingViewModel.cs

@@ -2,6 +2,7 @@
 using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -10,6 +11,8 @@ namespace HotelContracts.ViewModels
 {
     public class ConferenceBookingViewModel : IConferenceBookingModel
     {
+        [DisplayName("Дата начала конференции")]
+        public DateTime? StartDate { get; set; }
         public int HeadwaiterId { get; set; }
 
         public int? ConferenceId { get; set; }

Hotel/HotelDataBaseImplement/HotelDataBase.cs

@@ -9,7 +9,7 @@ namespace HotelDataBaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-VG5USAH\SQLEXPRESS;Initial Catalog=HotelDataBaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-V0ON61E\SQLEXPRESS;Initial Catalog=HotelDataBaseFull;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
             }
             base.OnConfiguring(optionsBuilder);
         }

Hotel/HotelDataBaseImplement/Migrations/20230518202913_newdatamaksim.Designer.cs

@@ -0,0 +1,567 @@
+// <auto-generated />
+using System;
+using HotelDataBaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace HotelDataBaseImplement.Migrations
+{
+    [DbContext(typeof(HotelDataBase))]
+    [Migration("20230518202913_newdatamaksim")]
+    partial class newdatamaksim
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.5")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Conference", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ConferenceName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("OrganiserId")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("StartDate")
+                        .HasColumnType("datetime2");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrganiserId");
+
+                    b.ToTable("Conferences");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceBooking", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int?>("ConferenceId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("HeadwaiterId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("NameHall")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime?>("StartDate")
+                        .IsRequired()
+                        .HasColumnType("datetime2");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConferenceId");
+
+                    b.HasIndex("HeadwaiterId");
+
+                    b.ToTable("ConferenceBookings");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceBookingDinner", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ConferenceBookingId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DinnerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConferenceBookingId");
+
+                    b.HasIndex("DinnerId");
+
+                    b.ToTable("ConferenceBookingDinners");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceMember", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ConferenceId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("MemberId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ConferenceId");
+
+                    b.HasIndex("MemberId");
+
+                    b.ToTable("ConferenceMembers");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Dinner", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("DinnerName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("DinnerPrice")
+                        .HasColumnType("float");
+
+                    b.Property<int>("HeadwaiterId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("HeadwaiterId");
+
+                    b.ToTable("Dinners");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Headwaiter", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("HeadwaiterEmail")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("HeadwaiterFIO")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("HeadwaiterLogin")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("HeadwaiterNumber")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("HeadwaiterPassword")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Headwaiters");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.MealPlan", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("MealPlanName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("MealPlanPrice")
+                        .HasColumnType("float");
+
+                    b.Property<int>("OrganiserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrganiserId");
+
+                    b.ToTable("MealPlans");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.MealPlanMember", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("MealPlanId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("MemberId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("MealPlanId");
+
+                    b.HasIndex("MemberId");
+
+                    b.ToTable("MealPlanMembers");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Member", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Citizenship")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("MemberFIO")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("OrganiserId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("OrganiserId");
+
+                    b.ToTable("Members");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Organiser", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("OrganiserEmail")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("OrganiserFIO")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("OrganiserLogin")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("OrganiserNumber")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("OrganiserPassword")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Organisers");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Room", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("HeadwaiterId")
+                        .HasColumnType("int");
+
+                    b.Property<int?>("MealPlanId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("RoomFrame")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("RoomName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("RoomPrice")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("HeadwaiterId");
+
+                    b.HasIndex("MealPlanId");
+
+                    b.ToTable("Rooms");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.RoomDinner", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DinnerId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("RoomId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DinnerId");
+
+                    b.HasIndex("RoomId");
+
+                    b.ToTable("RoomDinners");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Conference", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Organiser", "Organiser")
+                        .WithMany("Conferences")
+                        .HasForeignKey("OrganiserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Organiser");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceBooking", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Conference", "Conference")
+                        .WithMany("ConferenceBookings")
+                        .HasForeignKey("ConferenceId");
+
+                    b.HasOne("HotelDataBaseImplement.Models.Headwaiter", "Headwaiter")
+                        .WithMany("ConferenceBookings")
+                        .HasForeignKey("HeadwaiterId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Conference");
+
+                    b.Navigation("Headwaiter");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceBookingDinner", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.ConferenceBooking", "ConferenceBooking")
+                        .WithMany("Dinners")
+                        .HasForeignKey("ConferenceBookingId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDataBaseImplement.Models.Dinner", "Dinner")
+                        .WithMany("ConferenceBookingDinner")
+                        .HasForeignKey("DinnerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ConferenceBooking");
+
+                    b.Navigation("Dinner");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceMember", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Conference", "Conference")
+                        .WithMany("Members")
+                        .HasForeignKey("ConferenceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDataBaseImplement.Models.Member", "Member")
+                        .WithMany("ConferenceMembers")
+                        .HasForeignKey("MemberId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Conference");
+
+                    b.Navigation("Member");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Dinner", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Headwaiter", "Headwaiter")
+                        .WithMany("Dinners")
+                        .HasForeignKey("HeadwaiterId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Headwaiter");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.MealPlan", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Organiser", "Organiser")
+                        .WithMany("MealPlans")
+                        .HasForeignKey("OrganiserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Organiser");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.MealPlanMember", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.MealPlan", "MealPlan")
+                        .WithMany("Members")
+                        .HasForeignKey("MealPlanId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDataBaseImplement.Models.Member", "Member")
+                        .WithMany("MealPlanMember")
+                        .HasForeignKey("MemberId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("MealPlan");
+
+                    b.Navigation("Member");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Member", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Organiser", "Organiser")
+                        .WithMany("Members")
+                        .HasForeignKey("OrganiserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Organiser");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Room", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Headwaiter", "Headwaiter")
+                        .WithMany("Rooms")
+                        .HasForeignKey("HeadwaiterId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDataBaseImplement.Models.MealPlan", "MealPlan")
+                        .WithMany("Rooms")
+                        .HasForeignKey("MealPlanId");
+
+                    b.Navigation("Headwaiter");
+
+                    b.Navigation("MealPlan");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.RoomDinner", b =>
+                {
+                    b.HasOne("HotelDataBaseImplement.Models.Dinner", "Dinner")
+                        .WithMany("RoomDinners")
+                        .HasForeignKey("DinnerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("HotelDataBaseImplement.Models.Room", "Room")
+                        .WithMany("Dinners")
+                        .HasForeignKey("RoomId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Dinner");
+
+                    b.Navigation("Room");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Conference", b =>
+                {
+                    b.Navigation("ConferenceBookings");
+
+                    b.Navigation("Members");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.ConferenceBooking", b =>
+                {
+                    b.Navigation("Dinners");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Dinner", b =>
+                {
+                    b.Navigation("ConferenceBookingDinner");
+
+                    b.Navigation("RoomDinners");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Headwaiter", b =>
+                {
+                    b.Navigation("ConferenceBookings");
+
+                    b.Navigation("Dinners");
+
+                    b.Navigation("Rooms");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.MealPlan", b =>
+                {
+                    b.Navigation("Members");
+
+                    b.Navigation("Rooms");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Member", b =>
+                {
+                    b.Navigation("ConferenceMembers");
+
+                    b.Navigation("MealPlanMember");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Organiser", b =>
+                {
+                    b.Navigation("Conferences");
+
+                    b.Navigation("MealPlans");
+
+                    b.Navigation("Members");
+                });
+
+            modelBuilder.Entity("HotelDataBaseImplement.Models.Room", b =>
+                {
+                    b.Navigation("Dinners");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Hotel/HotelDataBaseImplement/Migrations/20230518202913_newdatamaksim.cs

@@ -0,0 +1,30 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace HotelDataBaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class newdatamaksim : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<DateTime>(
+                name: "StartDate",
+                table: "ConferenceBookings",
+                type: "datetime2",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified));
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "StartDate",
+                table: "ConferenceBookings");
+        }
+    }
+}

Hotel/HotelDataBaseImplement/Migrations/HotelDataBaseModelSnapshot.cs

@@ -65,6 +65,10 @@ namespace HotelDataBaseImplement.Migrations
                         .IsRequired()
                         .HasColumnType("nvarchar(max)");
 
+                    b.Property<DateTime?>("StartDate")
+                        .IsRequired()
+                        .HasColumnType("datetime2");
+
                     b.HasKey("Id");
 
                     b.HasIndex("ConferenceId");

Hotel/HotelDataBaseImplement/Models/ConferenceBooking.cs

@@ -13,6 +13,8 @@ namespace HotelDataBaseImplement.Models
 {
     public class ConferenceBooking : IConferenceBookingModel
     {
+        [Required]
+        public DateTime? StartDate { get; set; } = DateTime.Now;
         public int HeadwaiterId { get; private set; }
         public int? ConferenceId { get; private set; }
         public int Id { get; private set; }
@@ -68,6 +70,7 @@ namespace HotelDataBaseImplement.Models
             ConferenceId = ConferenceId,
             HeadwaiterId = HeadwaiterId,
             NameHall = NameHall,
+            StartDate = StartDate,
             ConferenceBookingDinners = ConferenceBookingDinners,
             ConfName = Conference?.ConferenceName
         };