ViewModel were modified and Attribute enum + class were created.

DressAtelierContracts/Attributes/ColumnAttribute.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DressAtelierContracts.Attributes
+{
+    [AttributeUsage(AttributeTargets.Property)]
+    public class ColumnAttribute : Attribute
+    {
+        public string Title { get; private set; }
+        public bool Visible { get; private set; }
+        public int Width { get; private set; }
+        public GridViewAutoSize GridViewAutoSize { get; private set; }
+        public bool IsUseAutoSize { get; private set; }
+
+        public ColumnAttribute(string title = "", bool visible = true, int width = 0, GridViewAutoSize gridViewAutoSize = GridViewAutoSize.None, bool isUseAutoSize = false) 
+        { 
+            Title = title; 
+            Visible = visible; 
+            Width = width; 
+            GridViewAutoSize = gridViewAutoSize; 
+            IsUseAutoSize = isUseAutoSize; 
+        }
+    }
+}

DressAtelierContracts/Attributes/GridViewAutoSize.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DressAtelierContracts.Attributes
+{
+    public enum GridViewAutoSize
+    {
+        NotSet = 0, 
+        None = 1, 
+        ColumnHeader = 2, 
+        AllCellsExceptHeader = 4,
+        AllCells = 6, 
+        DisplayedCellsExceptHeader = 8, 
+        DisplayedCells = 10, 
+        Fill = 16
+    }
+}

DressAtelierContracts/ViewModels/ClientViewModel.cs

@@ -1,4 +1,5 @@
-using DressAtelierDataModels.Models;
+using DressAtelierContracts.Attributes;
+using DressAtelierDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -10,14 +11,16 @@ namespace DressAtelierContracts.ViewModels
 {
     public class ClientViewModel : IClientModel
     {
+        [Column(visible: false)]
         public int ID { get; set; }
-        [DisplayName("Client's full name")]
+
+        [Column(title: "Client's full name", width: 150)]
         public string FullName { get; set; } = string.Empty;
 
-        [DisplayName("Login")]
+        [Column(title: "Login", gridViewAutoSize: GridViewAutoSize.Fill,isUseAutoSize: true)]
         public string Email { get; set; } = string.Empty;
 
-        [DisplayName("Password")]
+        [Column(title:"Password", width: 150)]
         public string Password { get; set; } = string.Empty;
 
     }

DressAtelierContracts/ViewModels/DressViewModel.cs

@@ -1,4 +1,5 @@
-using DressAtelierDataModels.Models;
+using DressAtelierContracts.Attributes;
+using DressAtelierDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -10,14 +11,16 @@ namespace DressAtelierContracts.ViewModels
 {
     public class DressViewModel : IDressModel
     {
-        [DisplayName("Name of dress")]
+        [Column(title: "Name of dress", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public string DressName { get; set; } = string.Empty;
 
-        [DisplayName("Cost")]
+        [Column(title: "Cost", width: 100)]
         public double Price { get; set; }
 
+        [Column(visible: false)]
         public Dictionary<int, (IMaterialModel, int)> DressComponents { get; set; } = new();
 
+        [Column(visible: false)]
         public int ID { get; set; }
     }
 }

DressAtelierContracts/ViewModels/EmployeeViewModel.cs

@@ -1,4 +1,5 @@
-using DressAtelierDataModels.Models;
+using DressAtelierContracts.Attributes;
+using DressAtelierDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -10,14 +11,15 @@ namespace DressAtelierContracts.ViewModels
 {
     public class EmployeeViewModel : IEmployeeModel
     {
+        [Column(visible: false)]
         public int ID { get; set; }
-        [DisplayName("Employee's fullname")]
+        [Column(title:"Employee's fullname",width: 150)]
         public string FullName { get; set; } = string.Empty;
-        [DisplayName("Password")]
+        [Column(title: "Password", width: 150)]
         public string Password { get; set; } = string.Empty;
-        [DisplayName("WorkExperience")]
+        [Column(title: "WorkExperience", width: 50)]
         public int WorkExperience { get; set; }
-        [DisplayName("Qualification")]
+        [Column(title: "Qualification", width: 50)]
         public int Qualification { get; set; }
     }
 }

DressAtelierContracts/ViewModels/MaterialViewModel.cs

@@ -5,16 +5,19 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.ComponentModel;
+using DressAtelierContracts.Attributes;
+
 namespace DressAtelierContracts.ViewModels
 {
     public class MaterialViewModel : IMaterialModel
     {
-        [DisplayName("Name of component")]
+        [Column(title: "Name of component", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public string ComponentName { get; set; } = string.Empty;
 
-        [DisplayName("Cost")]
+        [Column(title: "Cost", width: 100)]
         public double Cost { get; set; }
 
+        [Column(visible: false)]
         public int ID { get; set; }
     }
 }

DressAtelierContracts/ViewModels/MessageInfoViewModel.cs

@@ -1,4 +1,5 @@
-using DressAtelierDataModels.Models;
+using DressAtelierContracts.Attributes;
+using DressAtelierDataModels.Models;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -10,20 +11,22 @@ namespace DressAtelierContracts.ViewModels
 {
     public class MessageInfoViewModel : IMessageInfoModel
     {
+        [Column(visible: false)]
         public string ID { get; set; } = string.Empty;
 
+        [Column(visible: false)]
         public int? ClientID { get; set; }
 
-        [DisplayName("Sender's name")]
+        [Column(title: "Sender's name", width: 150)]
         public string SenderName { get; set; } = string.Empty;
 
-        [DisplayName("Delivery date")]
+        [Column(title: "Delivery date", width: 150)]
         public DateTime DeliveryDate { get; set; }
 
-        [DisplayName("Message subject")]
+        [Column(title: "Message subject", width: 150)]
         public string Subject { get; set; } = string.Empty;
 
-        [DisplayName("Message content")]
+        [Column(title: "Message content", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public string Body { get; set; } = string.Empty;
     }
 }

DressAtelierContracts/ViewModels/OrderViewModel.cs

@@ -1,4 +1,5 @@
-using DressAtelierDataModels.Enums;
+using DressAtelierContracts.Attributes;
+using DressAtelierDataModels.Enums;
 using DressAtelierDataModels.Models;
 using System;
 using System.Collections.Generic;
@@ -11,32 +12,40 @@ namespace DressAtelierContracts.ViewModels
 {
     public class OrderViewModel : IOrderModel
     {
-        [DisplayName("ID")]
+        [Column(title: "ID", width: 50)]
         public int ID { get; set; }
+
+        [Column(visible: false)]
         public int DressID { get; set; }
+
+        [Column(visible: false)]
         public int ClientID { get; set; }
-        [DisplayName("Client's name")]
+
+        [Column(title:"Client's name", width: 150)]
         public string ClientFullName { get; set; } = string.Empty;
+
+        [Column(visible: false)]
         public int? EmployeeID { get; set; }
-        [DisplayName("Employee's name")]
+
+        [Column(title:"Employee's name", width: 150)]
         public string? EmployeeFullName { get; set; } = string.Empty;
 
-        [DisplayName("DressName")]
+        [Column(title: "DressName", gridViewAutoSize: GridViewAutoSize.Fill, isUseAutoSize: true)]
         public string DressName { get; set; } = string.Empty;
 
-        [DisplayName("Quantity")]
+        [Column(title: "Quantity", width: 50)]
         public int Count { get; set; }
 
-        [DisplayName("Overall price")]
+        [Column(title: "Overall price", width: 50)]
         public double Sum { get; set; }
 
-        [DisplayName("Status")]
+        [Column(title: "Status", width: 150)]
         public OrderStatus Status { get; set; } = OrderStatus.Unknown;
 
-        [DisplayName("Date of creation")]
+        [Column(title: "Date of creation", width: 150)]
         public DateTime DateCreate { get; set; } = DateTime.Now;
 
-        [DisplayName("Date of implementation")]
+        [Column(title: "Date of implementation", width: 150)]
         public DateTime? DateImplement { get; set; }