如何防止在WPF DataGrid中取消選擇？

Question

我希望在任何給定的時刻在DataGrid中選擇一些行。我不希望它允許取消選擇。如何實現這一目標？

Answer 1

XAML

<DataGrid SelectionMode="Single" SelectionChanged="DataGrid_SelectionChanged"> 
    ...   
</DataGrid> 

C＃

private void DataGrid_SelectionChanged(
    object sender, 
    SelectionChangedEventArgs e) 
{ 
    DataGrid g = sender as DataGrid; 
    if (g != null && 
     e.AddedItems.Count == 0 && 
     e.RemovedItems.Count > 0) 
    { 
     this.Dispatcher.BeginInvoke((ThreadStart)delegate 
     { 
      g.SelectedItem = (Device)e.RemovedItems[0]; 
     }); 
    } 
}