to Laod a new DnDTree in the place of old DndTree

[sush]

hi , To ALL

Hi , i am trying to reload a Dndtree with whole new data , but with
same root node,actually i am creating a array of DefaultMutableTreNode
tree, & passes it to DndTree.Next time when i recrateni the array
DefaultMutableTreNode ,it loads on the repaint , but whn i click on it
it shows the old array of DefaultMutableTreNode, iam clearing the
DndTree.I cannot clear the array of DefaultMutableTreNode since i
creata it dynamically.
Can anybody suggest me what to do.
bye
Regards
Sushant