Instead of double-clicking on the cell you may double-click on the grid
1 <DataGrid.InputBindings>
2 <MouseBinding Gesture="LeftDoubleClick" Command="{Binding Edit}" CommandParameter="{Binding ElementName=UsersDataGrid, Path=SelectedItem}" />
3 </DataGrid.InputBindings>
In ViewModel
1 public ICommand Edit { get; private set; } 2
3 Edit = new RelayCommand(EditUser, x => _isAdmin); 4
5 private static void EditUser(object usr) 6 { 7 if (!(usr is User)) 8 return; 9
10 new UserEditorViewModel(usr as User); 11 }
转自:http://*.com/questions/18595654/wpf-datagrid-double-click-cell-mvvm-design