Data in Tree component?

This is driving me crazy.
Here is what I have:

import mx.controls.Tree;

this.createClassObject (Tree,“myTree”,10);
myTree.setSize (300,100);
myTree.addTreeNode (“MY LABEL”,“MY DATA”);

var treeL:Object = new Object();
treeL.change = function(){
trace(myTree.selectedNode);//returns <node data=“MY DATA” label=“MY LABEL” />
trace(myTree.selectedNode.data);//returns undefined
}
//
myTree.addEventListener(“change”,treeL);

I am trying to get access to the data object so that I can display it in a text field.

Please help!