1  // Copyright (c) Microsoft Corporation
 2  // The Microsoft Corporation licenses this file to you under the MIT license.
 3  // See the LICENSE file in the project root for more information.
 4  
 5  using Microsoft.UI.Xaml;
 6  using Microsoft.UI.Xaml.Controls;
 7  using Microsoft.UI.Xaml.Media;
 8  
 9  namespace Microsoft.CmdPal.UI;
10  
11  public static class CleanupHelper
12  {
13      public static void Cleanup(FrameworkElement element)
14      {
15          var count = VisualTreeHelper.GetChildrenCount(element);
16          for (var index = 0; index < count; index++)
17          {
18              var child = VisualTreeHelper.GetChild(element, index);
19              if (child is FrameworkElement childElement)
20              {
21                  Cleanup(childElement);
22              }
23          }
24  
25          switch (element)
26          {
27              case ItemsControl itemsControl:
28                  itemsControl.ItemsSource = null;
29                  break;
30              case ItemsRepeater itemsRepeater:
31                  itemsRepeater.ItemsSource = null;
32                  break;
33              case TabView tabView:
34                  tabView.TabItemsSource = null;
35                  break;
36          }
37      }
38  }