Flex学习笔记PopUpMenuButton

<?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:Script>
        <![CDATA[
            import mx.controls.Alert;
            public function showMsg(msg:String):void
            {
              Alert.show('你正在点击'+msg);
            }
        ]]>
    </fx:Script>
    <mx:PopUpMenuButton id="menuBtn" dataProvider="{['One','Two','Three']}" click="showMsg('left side')" itemClick="showMsg('right side with'+event.label)"/>
    
</s:Application>

PopUpMenuButton