You don't need recursion. The following example actually expands the
nodes, but could just as well build a list.
Tracy
//starts at the given node, walks up the tree opening nodes as it goes
private function expandParents(xmlNode:XML):void
{
while (xmlNode.parent() != null) {
xmlNode = xmlNode.parent();
myTree.expandItem(xmlNode,true, false);
}
}//expandParents
Tracy
________________________________
From: [email protected] [mailto:[EMAIL PROTECTED] On
Behalf Of Carpenter, Steven
Sent: Monday, March 31, 2008 12:03 PM
To: [email protected]
Subject: [flexcoders] Recursing Up a Tree
Hi all,
I'm still learning with Flex, and I'm stuck on this problem:
I have a Tree component and for any given selectedItem, I need to get a
list of parent nodes for that item - I'm not concerned with the children
of each parent, I just need to get a list or path of parent nodes for an
item, back up to the root node. I got as far as creating a method that
will take the selected item and get its parent node using
Tree.getParentItem(node) and ITreeDataDescriptor.isBranch() but I'm
struggling with building a recursive function that will let me walk back
up the tree. I've seen a great example of walking down a tree's
DataDescriptor using IViewCursor but not I'm stuck on creating something
that works in the other direction. Does anyone have any pointers/advice?
Thanks in advance!
