How to use the drop event of the Tree control n LabVIEW 8.20

[Pandiarajan]

Hi, I am using the two tree controls in my application to provide a option for the user to drag and drop item from one tree to the other. I have to validate the user selection. I tried to capture the user drop event using the event structure. The problem I am facing is, I am not able to drop the item even though i have wired a constant true to the filter(Accepted?) in the event case. I have enable the property(Allow droping) in the right menu of the tree control also. While configuring an event case for (drop, drag entered and some thing like this) only I am getting the problem otherwise it is working fine. What do i need to do to caprture the drop event ? Is there any way to avoid the item duplication while droping a new item in the tree control ?or how can i do this? Thanks,Pandiarajan R