RE: [flexcoders] Get selected tree node for dynamically created tree

Wed, 04 Jan 2006 20:54:45 -0800

Title: Get selected tree node for dynamically created tree

You need to use node.getProperty(“label”) not .attributes, this way your code will work regardless of how the dataProvider was specified.

 

Matt

 

From: [email protected] [mailto:[email protected]] On Behalf Of Ault, Gary - BLS
Sent: Tuesday, January 03, 2006 5:47 AM
To: [email protected]
Subject: [flexcoders] 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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