Treeview Shift-Click to select multiple items in sequence

Posted by: dphillips on 30 June 2022, 6:11 am EST

  • Posted 30 June 2022, 6:11 am 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?
  • Marked as Answer

    Replied 30 June 2022, 6:32 pm 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
Need extra support?

Upgrade your support plan and get personal unlimited phone support with our customer engagement team

Learn More

Forum Channels