Treeview Shift-Click to select multiple items in sequence

Treeview Shift-Click to select multiple items in sequence

Posted by: dphillips on 30 June 2022, 3:11 pm EST

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  dphillips

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  Posted 30 June 2022, 3:11 pm EST

  Is there a way to allow the user to click on the 1st item in the treeview, and then shift+click on a later item and have it select all items in between?

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  nitin.sharma

  

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  Posted 1 July 2022, 3:32 am EST

  Hi,

  You need to handle ItemExpanded event to select 1st item on expanding a Parent node as:

  
          private void Item_Expanded(object sender, SourcedEventArgs e)
          {
              var node = e.Source as C1TreeViewItem;
              if(node != null)
              {
                  if(node.HasItems)
                  {
                      node.FirstNode.IsSelected = true;
                  }
              }
          }
  
  

  In order to achieve the requirement to select items using Shift+Click. You need to set SelectionMode=True. On expanding parent node the first item will be selected and then shift+click on a later item will select all items between them.

  Please refer the attached sample for the same : C1TreeViewSample.zip

  Best Regards,
  
  Nitin