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<?xml version="1.0"?>
<!-- usingas/AddingChildrenAsUIComponents.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
??? <mx:Script><![CDATA[
??????? import flash.display.Sprite;
??????? import mx.core.UIComponent;

??????? private var xLoc:int = 20;
??????? private var yLoc:int = 20;
??????? private var circleColor:Number = 0xFFCC00;

??????? private function addChildToPanel():void {

??????????? var circle:Sprite = new Sprite();
??????????? circle.graphics.beginFill(circleColor);
??????????? circle.graphics.drawCircle(xLoc, yLoc, 15);

??????????? var c:UIComponent = new UIComponent();
??????????? c.addChild(circle);
??????????? panel1.addChild(c);
???????????
??????????? xLoc = xLoc + 5;
??????????? yLoc = yLoc + 1;
??????????? circleColor = circleColor + 20;
??????? }
??? ]]></mx:Script>

??? <mx:Panel id="panel1" height="250" width="300" verticalScrollPolicy="off"/>

??? <mx:Button id="myButton" label="Click Me" click="addChildToPanel();"/>
???
</mx:Application>