Tree dataProvider from PHP

Question

Hello all!
I see in the web many many many example how to populate a
Tree, but, i cant find no example how to populate a Tree FROM PHP.
I am using HTTPService and know how to use it but, i don't
know the structure of nodes.
In PHP file, i am doing this:
echo "<node label='root'><node label='NODE
1'><node label='child 1 of NODE 1' /><node label='child
2 of NODE 1' /></node></node>";
and, in the Tree, I am putting:
dataProvider="{myHttpService.lastResult}"
but, nothing happens, no result in Tree!
What is the correct way?

Answer 1

I've got my list populating correctly from XML generated by
php but any time I click on a folder in the tree list I get an
error:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="dirListSvc.send();">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import mx.rpc.events.FaultEvent;
import mx.rpc.events.ResultEvent;
[Bindable]
private var dirList:XML;
[Bindable]
public var selectedNode:XML;
// Event handler for the Tree control change event.
public function treeChanged(event:Event):void {
selectedNode=Tree(event.target).selectedItem as XML;
private function
directoryResultHandler(event:ResultEvent):void
dirList = event.result as XML;
// Fault handler - displays the error
private function
directoryFaultHandler(event:FaultEvent):void
Alert.show(event.fault.message, "Could not load dirList");
]]>
</mx:Script>
<mx:HTTPService
id="dirListSvc"
url="
http://localhost/iqAssets/scripts/directory.php"
resultFormat="e4x"
result="directoryResultHandler(event);"
fault="directoryFaultHandler(event);"
/>
<mx:HDividedBox width="100%" height="100%">
<mx:Tree x="10" y="10" labelField="@label"
dataProvider="{dirList}" width="250" height="530"
change="treeChanged(event)"/>
<mx:Panel height="100%" width="50%"
title="{selectedNode.@label}">
<mx:Text text="{selectedNode.@path}" />
<mx:Image source="{selectedNode.@path}" />
</mx:Panel>
</mx:HDividedBox>
</mx:Application>