Not Getting the OverFlowText

Hi

     I am creating an application using TextLayout Framework with Flaex 3(SDK 3.4)

     I dont want to wrap the text So I set the LineBreak Property of TextFlow

     textFlow.lineBreak = LineBreak.EXPLICIT;        

     But the Over flow text Is not Visible.

     Here is the code:-

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="OverFlow()">
    <mx:Script>
        <![CDATA[
            import flashx.textLayout.formats.BlockProgression;
            import flash.text.engine.BreakOpportunity;
            import flashx.textLayout.formats.LineBreak;
            import flashx.textLayout.container.DisplayObjectContainerController;
            import flashx.textLayout.elements.SpanElement;
            import flashx.textLayout.elements.ParagraphElement;
            import flashx.textLayout.elements.TextFlow;
            private var textContainer:Sprite;
            public function OverFlow():void{
                textContainer = new Sprite();               
                var textFlow:TextFlow = new TextFlow();
               textFlow.lineBreak = LineBreak.EXPLICIT;               
                var p:ParagraphElement = new ParagraphElement();
                var span:SpanElement = new SpanElement();
                span.text = "123xzasdfasfsdfsdfsdfsdfsdfsd sdf sdfsdfas asd 456 ";
                span.fontSize = 32;
                p.addChild(span);
                textFlow.addChild(p);          
                textFlow.flowComposer.addController(new DisplayObjectContainerController(textContainer,400,100));
                textFlow.flowComposer.updateAllContainers();
                textContainer.graphics.lineStyle(2,0x000000);
                textContainer.graphics.drawRect(0,0,400,100);
                canvas.rawChildren.addChild(textContainer);
            }
        ]]>
    </mx:Script>
    <mx:Canvas id="canvas" x="100" y="20" width="720" height="540"  backgroundColor="#ECE9D8" verticalScrollPolicy="auto" borderColor="#000000"  />
</mx:Application>

Output of the code is as Attached file..

if any body know the solution please Reply.