about_ Flex TextBinding

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx"
               creationComplete="creationCompleteHandler(event)">
    <fx:Script>
        <![CDATA[
            import flashx.textLayout.container.ContainerController;
            import flashx.textLayout.conversion.TextConverter;
            import flashx.textLayout.edit.EditManager;
            import flashx.textLayout.elements.TextFlow;
            
            import mx.core.UIComponent;
            import mx.events.FlexEvent;


            static private const simpleText:* = <TextFlow xmlns='http://ns.adobe.com/textLayout/2008' fontSize='14' textIndent='15' 

marginBottom='15' paddingTop='4' paddingLeft='4'></TextFlow>;
            
            protected function creationCompleteHandler(event:FlexEvent):void
            {
                var _container:Sprite = new Sprite();
                var ui:UIComponent=new UIComponent();
                ui.addChild(_container);
                editor.addElement(ui);
                editor.tabFocusEnabled = false;
                var textFlow:TextFlow = TextConverter.importToFlow(simpleText, TextConverter.TEXT_LAYOUT_FORMAT);
                textFlow.flowComposer.addController(new ContainerController(_container,editor.width,editor.height));
                textFlow.interactionManager = new EditManager();
                textFlow.interactionManager.selectRange(0,0);
                textFlow.interactionManager.setFocus();
            }    
        ]]>
    </fx:Script>
    
    <s:BorderContainer backgroundColor="0x999999" horizontalCenter="0" verticalCenter="0" id="editor" />
        
</s:Application>