1. using System;
2. using System.Collections.Generic;
3. using System.Linq;
4. using System.Text;
5. using System.Windows;
6. using System.Windows.Controls;
7. using System.Windows.Input;
8. using System.Windows.Media;
9.  
10. namespace TasksProviderV3.Helpers
11. {
12.     public static class DataGridDP
13.     {
14.         public static readonly DependencyProperty DoubleClickProperty;
15.  
16.         static DataGridDP()
17.         {
18.             DoubleClickProperty = DependencyProperty.RegisterAttached("DoubleClick", typeof(ICommand), typeof(DataGridDP),
19.                 new UIPropertyMetadata(null, OnDoubleClickPropertyChanged));
20.         }
21.  
22.         public static void OnDoubleClickPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
23.         {
24.             var grid = obj as DataGrid;
25.             if (grid != null)
26.             {
27.                 var command = e.NewValue as ICommand;
28.                 if (e.OldValue == null && e.NewValue != null) grid.MouseDoubleClick += Grid_MouseDoubleClick;
29.                 else if (e.OldValue != null && e.NewValue == null) grid.MouseDoubleClick -= Grid_MouseDoubleClick;
30.             }
31.         }
32.  
33.         private static void Grid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
34.         {
35.             var obj = sender as DependencyObject;
36.             var command = obj.GetValue(DoubleClickProperty) as ICommand;
37.  
38.                         if (command != null && command.CanExecute(obj))
39.             {
40.                 command.Execute(obj);
41.             }
42.         }
43.  
44.         public static void SetDoubleClick(DependencyObject obj, ICommand value)
45.         {
46.             obj.SetValue(DoubleClickProperty, value);
47.         }
48.  
49.         public static ICommand GetValue(DependencyObject obj)
50.         {
51.             return obj.GetValue(DoubleClickProperty) as ICommand;
52.         }
53.     }
54. }
55.