Flex中如何通过liveScrolling属性，创建立现滚动方式的TextArea控件

main.mxml

1. <?xml version="1.0" encoding="utf-8"?>
2. <mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"
3. layout="vertical"
4. verticalAlign="middle"
5. backgroundColor="white">
7. <mx:Stringid="lorem" source="lorem.txt" />
9. <mx:ApplicationControlBardock="true">
10. <mx:CheckBoxid="checkBox"
11. label="liveScrolling:"
12. labelPlacement="left"
13. selected="true"/>
14. </mx:ApplicationControlBar>
16. <mx:TextAreaid="textArea"
17. text="{lorem}"
18. liveScrolling="{checkBox.selected}"
19. editable="false"
20. condenseWhite="true"
21. width="100%"
22. height="100%"/>
24. </mx:Application>