mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/KeyboardEnabledRadioButton.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4 namespace System.Activities.Presentation.Internal.PropertyEditing
   5 {
   6     using System.Windows.Controls;
   7     using System.Windows.Input;
   8
   9     // <summary>
  10     // WPF's RadioButton responds to Space key to trigger selection, but
  11     // not the Enter or Return keys.  This class responds to both.
  12     // </summary>
  13     internal class KeyboardEnabledRadioButton : RadioButton
  14     {
  15         protected override void OnKeyDown(KeyEventArgs e)
  16         {
  17             if (e.Key == Key.Enter ||
  18                 e.Key == Key.Return)
  19             {
  20
  21                 this.IsChecked = true;
  22                 e.Handled = true;
  23             }
  24
  25             base.OnKeyDown(e);
  26         }
  27     }
  28 }