Hello,
I have added many groups in the explorer bar...and infra provide a facility that u can change their order at run time.....every thing goes well but when i try to move the first group to upward direction, i got null reference exception and my application crashes....i have also set the lock property but the issue is still there.....is their any property that prevents dragging upward....or any other idea to prevent this crash...
Thank You
I tried this and it always works fine for me so I attached my sample to this post for you. Please review it and feel free to let me know if I misunderstood you or if you have any other questions.