Drag/drop stops working inside nested RadWindows

2 posts, 1 answers
  1. hwsoderlund
    hwsoderlund avatar
    419 posts
    Member since:
    Aug 2006

    Posted 18 Mar 2009 Link to this post

    I've been using the example application posted in this thread to implement drag/drop between listboxes. My application makes heavy use of the RadWindow component, often with windows opening windows opening windows etc. In this situation the dropping of items stops working. The drag operation starts just fine, but I cannot drop the element anywhere on the page. When I release the item the only thing that happens is that OnDragInfo is fired with the Status set to DragCancel. The strange thing is that when I just open a single window with the drag/drop page in it, everything works fine. As soon as I add one window "level" it breaks.

    I've prepared a small example app demonstrating the behavior, see link below. It is quite urgent for me to find a solution to this problem as I have a deadline approaching fast.

    Sample app:

  2. Answer
    Miroslav avatar
    922 posts

    Posted 19 Mar 2009 Link to this post

    Hello Henrik,

    Thank you for pointing this out! The sample solution made identifying the problem a lot easier.

    The DragDrop did not have the method to correctly identify the Z index of the nested windows (since the .Controls assembly does not reference .Navigation assembly, a workaround is used).

    We now have corrected this and the topmost window is correctly identified, solving the issue. The update will be available in the SP1 release of the controls.

    I have sent you the updated assemblies in a support ticket, hopefully not too late for your deadline.

    Your telerik points have been updated.

    the Telerik team

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