Drag & Drop Does Not Initiate from Button/Interactable Controls - Grids for WPF Forum

The latest build of this product (v24.1.5) was released 2 months ago, which was before this thread was created.

Posted 12 days ago by Dan Hutt

Version: 24.1.4

Platform: .NET 4.7

Environment: Windows 11 (64-bit)

Hi there. We are having a bit of an issue with the Drag & Drop functionality for a TreeListBox.

If the tree item has a Button or other similar control as the content, Drag & Drop does not work. I suspect this is due to the Button handling the event for clicking and not allowing the event to tunnel or bubble to the TreeItem. I haven't been able to find a workaround, so any help would be very appreciated.

Thanks!

Comments (2)

Answer - Posted 12 days ago by Actipro Software Support - Cleveland, OH, USA

Hi Dan,

Yes, if a child control handles mouse input, then drag and drop for the TreeListBoxItem won't work. You'd have to either make that child control IsHitTestVisible=False or don't have it span the full width of the row so that there is area to grab on for TreeListBoxItem dragging.

Actipro Software Support

Posted 12 days ago by Dan Hutt

Hey there, thanks for confirming. I had a hunch.

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