[flexcoders] Get selected tree node for dynamically created tree

[Ault, Gary - BLS]

Title: Get selected tree node for dynamically created tree








First time creating trees in Flex. Can someone explain how to find the selected tree node on a tree that has a data model created programmatically?  I create my data model as shown below (example from Flex ActionScript Language Ref 1.5). The tree is displayed correctly. When I try to use the nodeOpen event on my Tree control, however, selectedNode is undefined. Event.node.attributes.label  and event.node.attributes.data are also undefined. However, if I use an mx:XML dataprovider as most tree usage examples do, these attributes are not undefined. 

Code to create model:

         var treeDP;

         treeDP = new TreeNode();

         var root = treeDP.addTreeNode("root","0");

         root.addTreeNode("node 1 ","1");

         root.addTreeNode("node 2","2");

         var node3 = root.addTreeNode("node 3","3");

         node3.addTreeNode("node 3-0", "3-0");

         node3.addTreeNode("node 3-1", "3-1");



Tree Control:


<mx:Tree id="indTree" dataProvider="{treeDP}"  height="100%"  change="treeSelected( event );"

         nodeOpen="nodeOpenEvt(event);" ></mx:Tree> 


Thanks for any help you can provide,


Gary Ault

Bureau of Labor Statistics








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