Tree Drag & Drop problem identifying drop location

Question

Item0
----- Item1
---------- Item11
---------- Item12
..............................<--------
----- Item2
---------- Item21
---------- Item22
----- Item3
---------- Item31
---------- Item32
When I drag Item32 to drop at the location pointed by the
arrow, it can be dropped as :
1). A third child of Item1 or
2). A Second child of Item0
After drop, I need to update the database for Item32's new
parent change.
How can we identify new parent whether it is dropped as Case
1). or Case 2).
Because the calculateDropIndex return the same index(of
Item2) and cannot identify...
Any suggestion?
Thanks

Answer 1

Hi guys,
I ran into the same issue and think I have managed to solve it. Below are the steps I took:
1. In my dragDrop event I grabbed the drop index by using tree.calculateDropIndex(event) and created a bindable variable [dropIndex] to store the index number.
2. I created a separate function [tree_getNewParent] to get the new parent from.
3. In my dragDrop event (I have also tried this with dragComplete) I added a callLater to the function I created in the previous step. I remembered that I had dramas trying to expand items and the solution I found used callLater as the items weren't yet bound. I assume it is the same case here.
4. Finally in the separate function I set tree.selectedIndex to equal the index I stored in the dragDrop event. Then to access the new parent I simply did a tree.selectedItem.parent()!
Mine looks something like this:
[Bindable]
private var dropIndex:Number;
private function tree_dragDrop(event:DragEvent):void{
     var dIndex:Number = tree.calcualteDropIndex(event);
     dropIndex = dIndex;
     callLater(tree_getNewParent);
private function tree_getNewParent():Object{
     tree.selectedIndex = dropIndex; 
     var newParent:Object = new Object();
     newParent = tree.selectedItem.parent();
     return newParent;
Please let me know how you go.
Cheers,
Stu.