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POFinding descendent children by name in flex
 

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    <p>I am puzzled by what I am seeing here in this code below. I have a box container that has a child button (whose name I have specified). I have written a function that attempts to find the child button by name. However, this does not work as expected - The reason being the Box has numChildren=0 for some reason and I expect it to be 1 because I have a button added to it as a child. Can someone help me understand what I am doing wrong?</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"&gt; &lt;fx:Declarations&gt; &lt;!-- Place non-visual elements (e.g., services, value objects) here --&gt; &lt;/fx:Declarations&gt; &lt;mx:Box height="100%" width="100%" initialize="initializeApp();" name="MyBox"&gt; &lt;fx:Script&gt; &lt;![CDATA[ import mx.controls.Alert; import mx.controls.Button; import mx.core.FlexGlobals; public function initializeApp():void { var btn:Button = new Button(); btn.name = "MyButton"; addElement(btn); btn.addEventListener(MouseEvent.CLICK, clickCallback); } private function clickCallback(event:MouseEvent):void{ var obj:DisplayObject = findChildByName(FlexGlobals.topLevelApplication as DisplayObjectContainer, "MyButton"); if (obj==null){ Alert.show( "Not Found"); } else{ Alert.show( "Found"); } } private function findChildByName(parent:DisplayObjectContainer, name:String):DisplayObject{ var childCount:Number = (parent==null) ? 0 : parent.numChildren; for (var i:Number=0;i&lt;childCount;i++){ var child:DisplayObject = parent.getChildAt(i); if (child is DisplayObjectContainer){ return findChildByName(child as DisplayObjectContainer, name); } else{ if (parent!=null &amp;&amp; child == parent.getChildByName(name)){ return child; } } } return null; } ]]&gt; &lt;/fx:Script&gt; &lt;/mx:Box&gt; &lt;/s:WindowedApplication&gt; </code></pre> <p>Thank you.</p>
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