Flex中如何用backgroundDisabledColor样式，自定义TextInput控件在无效状态下填充颜色

main.mxml

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"

layout="vertical"

verticalAlign="middle"

backgroundColor="white">



<mx:ApplicationControlBar dock="true">

<mx:Label text="backgroundDisabledColor:" />

<mx:ColorPicker id="colorPicker"

selectedColor="white" />



<mx:CheckBox id="checkBox"

label="enabled:"

labelPlacement="left" />

</mx:ApplicationControlBar>



<mx:TextInput text="The quick brown fox"

backgroundDisabledColor="{colorPicker.selectedColor}"

enabled="{checkBox.selected}" />



</mx:Application>