Re-create Tree control drag and drop move

Hello,
Ive got a tree control where dragEnabled=true and I have
custom handlers for dragEnter, dragOver, and dragDrop so that I can
drag/drop from datagrid's to the tree and it works fine.
The issue is now the built in tree functionality for moving
nodes around within the tree is gone. When I set dropEnabled=true
it breaks the ability to drop from the datagrid to the tree.
How can i keep the ability to move tree nodes within the tree
and also be able to drag and drop from a datagrid onto the tree?
Thanks for any help!

While doing more testing I found the solution.. seriously...
dont know how I should have known this one...
on Tree dragOver handler:
if( from.id == 'data_grid' ) event.preventDefault();

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http://htmldb.oracle.com/pls/otn/f?p=33867:1:10730556242433798443
Building an Ajax Memory Tree by Scott Spendolini
http://www.oracle.com/technology/pub/articles/spendolini-tree.html
Carl Backstrom ApEx-AJAX & DHTML examples;
http://htmldb.oracle.com/pls/otn/f?p=11933:5:8901671725714285254
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Re-create Tree control drag and drop move

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