flex状态切换

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

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">

<mx:Script>
<![CDATA[
import mx.utils.StringUtil;
import mx.controls.Alert;

[Bindable]
private var arr:Array=[
{name:"名字11"，abbrev:"Al1"}，
{name:"名字12"，abbrev:"Al2"}，
{name:"名字13"，abbrev:"Al3"}，
{name:"名字14"，abbrev:"Al4"}，
];

private function comboBox_labelFunc（item:Object）:String {
return StringUtil.substitute（"{0} （{1}）"， item.＠name， item.＠abbrev）;
}

private function comboBox_labelFunc_custom（item:Object）:String {
return StringUtil.substitute（"{0} （{1}）"， item.name， item.abbrev）;
}


protected function button1_clickHandler（event:MouseEvent）:void
{
if（this.comboBox2.edItem）
Alert.show（this.comboBox2.edItem.name）;
else Alert.show（"not ed"）;

if（this.comboBox.edItem）
Alert.show（this.comboBox.edItem.＠name）;
else Alert.show（"not ed"）;

}

]]>
</mx:Script>

<mx:XMLList id="statesXMLList">
<state abbrev="AL" name="Alabama" />
<state abbrev="AK" name="Alaska" />
<state abbrev="AZ" name="Arizona" />
<state abbrev="AR" name="Arkansas" />
<state abbrev="CA" name="California" />
<state abbrev="CO" name="Colorado" />
<state abbrev="CT" name="Connecticut" />
</mx:XMLList>
<mx:ComboBox id="comboBox2"
prompt="Please  a aa..."
dataProvider="{arr}"
labelFunction="comboBox_labelFunc_custom" />
<mx:Button label="按钮" click="button1_clickHandler（event）"/>

<mx:ComboBox id="comboBox"
prompt="Please  a State..."
dataProvider="{statesXMLList}"
labelFunction="comboBox_labelFunc" />



</mx:Application>




　　


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