Flex ComboBox使用例子

<?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" minWidth="955" minHeight="600">
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
		<s:ArrayCollection id="dp">
			<fx:Object id="a" label="t" data="tom"/>
			<fx:Object id="b" label="j" data="jack"/>
			<fx:Object id="c" label="m" data="mary"/>
			<fx:Object id="d" label="b" data="blue"/>
		</s:ArrayCollection>
	</fx:Declarations>
	
	<fx:Script>
		<![CDATA[
			import mx.controls.Alert;
			private function peopleChange(event:Event):void {
				var s:String = "";
				s+="索引："+event.target.selectedIndex+"    简称："+event.target.selectedItem.label+"   名字:"+event.target.selectedItem.data;
				Alert.show(s);
			}
		]]>
	</fx:Script>
	
	
	<s:ComboBox dataProvider="{dp}" labelField="data" change="peopleChange(event)"/>
	
</s:Application>