поменяла вью модели и обозначила всем колонкам свойства согласно конструктору класса ColumnAttribute

SushiBarContracts/ViewModels/ClientViewModel.cs

@@ -1,4 +1,5 @@
-using SushiBarDataModels;
+using SushiBarContracts.Attributes;
+using SushiBarDataModels;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -10,15 +11,16 @@ namespace SushiBarContracts.ViewModels
 {
     public class ClientViewModel : IClientModel
     {
+        [Column(visible: false)]
         public int Id { get; set; }
 
-        [DisplayName("ФИО Клиента")]
+        [Column(title: "ФИО клиента", width: 200)]
         public string ClientFIO { get; set; } = string.Empty;
 
-        [DisplayName("Логин (эл. почта)")]
+        [Column(title: "Логин (эл. почта)", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public string Email { get; set; } = string.Empty;
 
-        [DisplayName("Пароль")]
+        [Column(title: "Пароль", width: 50)]
         public string Password { get; set; } = string.Empty;
     }
 }

SushiBarContracts/ViewModels/ComponentViewModel.cs

@@ -1,18 +1,19 @@
 using System.ComponentModel;
+using SushiBarContracts.Attributes;
 using SushiBarDataModels.Models;
 
 namespace SushiBarContracts.ViewModels
 {
     public class ComponentViewModel : IComponentModel
     {
+        [Column(visible: false)]
         public int Id { get; set; }
-        [DisplayName("Название компонента")]
-
 
+        [Column(title: "Компонент", width: 50)]
         public string ComponentName { get; set; } = string.Empty;
         [DisplayName("Цена")]
 
-
+        [Column(title: "Цена", width: 30)]
         public double Cost { get; set; }
     }
 }

SushiBarContracts/ViewModels/ImplementerViewModel.cs

@@ -1,4 +1,5 @@
-using SushiBarDataModels;
+using SushiBarContracts.Attributes;
+using SushiBarDataModels;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -10,17 +11,19 @@ namespace SushiBarContracts.ViewModels
 {
     public class ImplementerViewModel : IImplementerModel
     {
+        [Column(visible: false)]
         public int Id { get; set; }
-        [DisplayName("Исполнитель ФИО")]
+
+        [Column(title: "Исполнитель ФИО", width: 150)]
         public string ImplementerFIO { get; set; } = string.Empty;
 
-        [DisplayName("Пароль")]
+        [Column(title: "Пароль", width: 50)]
         public string Password { get; set; } = string.Empty;
 
-        [DisplayName("Опыт работы")]
+        [Column(title: "Опыт работы", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public int WorkExperience { get; set; }
 
-        [DisplayName("Квалификация")]
+        [Column(title: "Квалификация", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public int Qualification { get; set; }
     }
 }

SushiBarContracts/ViewModels/MessageInfoViewModel.cs

@@ -1,4 +1,5 @@
-using SushiBarDataModels;
+using SushiBarContracts.Attributes;
+using SushiBarDataModels;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -11,20 +12,24 @@ namespace SushiBarContracts.ViewModels
 {
     public class MessageInfoViewModel : IMessageInfoModel
     {
+        [Column(visible: false)]
         public string MessageId { get; set; } = string.Empty;
 
+        [Column(visible: false)]
         public int? ClientId { get; set; }
 
-        [DisplayName("Имя отправителя")]
+        [Column(title: "Имя отправителя", width: 200)]
         public string SenderName { get; set; } = string.Empty;
 
-        [DisplayName("Дата получения")]
+        [Column(title: "Дата получения", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public DateTime DateDelivery { get; set; } = DateTime.Now;
 
-        [DisplayName("Тема письма")]
+
+        [Column(title: "Тема письма", width: 150)]
         public string Subject { get; set; } = string.Empty;
 
-        [DisplayName("Душа письма...")]
+
+        [Column(title: "Душа письма...", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public string Body { get; set; } = string.Empty;
     }
 }

SushiBarContracts/ViewModels/OrderViewModel.cs

@@ -2,45 +2,50 @@
 using SushiBarDataModels.Models;
 using SushiBarDataModels.Enums;
 using SushiBarDataModels;
+using SushiBarContracts.Attributes;
 
 namespace SushiBarContracts.ViewModels
 {
     public class OrderViewModel : IOrderModel
     {
-        [DisplayName("Номер")]
+        [Column(title: "Номер", width: 10)]
         public int Id { get; set; }
+
+        [Column(visible: false)]
         public int SushiId { get; set; }
+
+        [Column(visible: false)]
         public int ClientId { get; set; }
+
+        [Column(visible: false)]
         public int? ImplementerId { get; set; }
 
-
+        [Column(title: "Имя клиента", width: 150)]
-        [DisplayName("Имя клиента")]
         public string ClientFIO { get; set; } = string.Empty;
 
-        [DisplayName("Имя исполнителя")]
+        [Column(title: "Имя исполнителя", width: 150)]
         public string? ImplementerFIO { get; set; }
 
-        [DisplayName("Суши")]
+        [Column(title: "Суши", width: 50)]
         public string SushiName { get; set; } = string.Empty;
 
-
+        [Column(title: "Количество", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
-        [DisplayName("Количество")]
         public int Count { get; set; }
 
 
-        [DisplayName("Сумма")]
+        [Column(title: "Сумма", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public double Sum { get; set; }
 
 
-        [DisplayName("Статус")]
+        [Column(title: "Статус", width: 30)]
         public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
 
 
-        [DisplayName("Дата создания")]
+        [Column(title: "Дата создания", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public DateTime DateCreate { get; set; } = DateTime.Now;
 
 
-        [DisplayName("Дата выполнения")]
+        [Column(title: "Дата выполнения", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public DateTime? DateImplement { get; set; }
     }
 }

SushiBarContracts/ViewModels/SushiViewModel.cs

@@ -1,18 +1,18 @@
 using System.ComponentModel;
+using SushiBarContracts.Attributes;
 using SushiBarDataModels.Models;
 
 namespace SushiBarContracts.ViewModels
 {
     public class SushiViewModel : ISushiModel
     {
+        [Column(visible: false)]
         public int Id { get; set; }
-        [DisplayName("Название изделия")]
-
 
+        [Column(title: "Название изделия", width: 50)]
         public string SushiName { get; set; } = string.Empty;
-        [DisplayName("Цена")]
-
 
+        [Column(title: "Цена", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public double Price { get; set; }
         public Dictionary<int, (IComponentModel, int)> SushiComponents
         {