<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white" viewSourceURL="srcview/index.html">

    <mx:Script>
        <![CDATA[
            private function comboBox_change():void {
                comboBox.setStyle("textAlign", comboBox.selectedLabel);
            }
        ]]>
    </mx:Script>

    <mx:Label text="textAlign:" />
    <mx:ComboBox id="comboBox"
            width="250"
            change="comboBox_change();">
        <mx:dataProvider>
            <mx:Array>
                <mx:Object label="left" />
                <mx:Object label="center" />
                <mx:Object label="right" />
            </mx:Array>
        </mx:dataProvider>
    </mx:ComboBox>

</mx:Application>