<?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 -->

    </fx:Declarations>

    <!-- 下拉列表控件实例 -->

    <fx:Script>

        <![CDATA[

            import spark.events.DropDownEvent;

            [Bindable]public var selectedItem:Object;

            protected function combobox1_closeHandler(event:DropDownEvent):void

            {

                // TODO Auto-generated method stub

            }

        ]]>

    </fx:Script>

    <mx:Panel title="下拉列表控件实例" height="75%" width="75%" paddingTop="10" paddingLeft="10">

        <mx:ComboBox close="selectedItem=ComboBox(event.target).selectedItem" editable="true">

            <mx:dataProvider>

                <mx:ArrayCollection>

                    <mx:source>

                        <fx:Object label="青海" data="西宁"/>

                        <fx:Object label="甘肃" data="兰州"/>

                        <fx:Object label="宁夏" data="银川"/>

                        <fx:Object label="陕西" data="西安"/>

                        <fx:Object label="*" data="乌鲁木齐"/>

                        <fx:Object label="*" data="拉萨"/>

                    </mx:source>

                </mx:ArrayCollection>

            </mx:dataProvider>

        </mx:ComboBox>

        <mx:Label id="lb1" text="您选择了：{selectedItem.label},省会：{selectedItem.data}" />

    </mx:Panel>

</s:Application>