flex AdvancedDataGrid实现右键内容复制

主文件代码：

<?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" creationComplete="initApp()">        <s:layout>                <s:BasicLayout/>        </s:layout>                <fx:Script>                <![CDATA[                        import mx.collections.ArrayCollection;                        import mx.events.ListEvent;                                                [Bindable]                        private var _data:ArrayCollection = new ArrayCollection([                                {uid:1,name:"张三"},                                {uid:2,name:"李四"},                                {uid:3,name:"王五"},                                {uid:4,name:"赵六"},                                {uid:5,name:"周洁杰"}                        ]);                                                private static var _selectedCount:Number;                        private var _selectedItem:Object;                                                [Bindable]                        private var _contextMenu:ContextMenu ;                                                private  function initApp():void{                                _contextMenu = new ContextMenu();                                var contextMenuItem:ContextMenuItem = new ContextMenuItem("复制姓名",true);                                contextMenuItem.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT,onset);                                _contextMenu.customItems.push(contextMenuItem);                                _contextMenu.addEventListener(ContextMenuEvent.MENU_SELECT,onselect);                                _contextMenu.hideBuiltInItems(); // 隐藏一些内建的鼠标右键菜单项                                                         }                                                public function onset(evt:ContextMenuEvent):void{                                System.setClipboard(adg.selectedItem.name);//将信息复制到系统剪切板                        }                                                public function onselect(evts:ContextMenuEvent):void{                                adg.selectedIndex = _selectedCount;                        }                ]]>        </fx:Script>                <fx:Declarations>                <!-- 将非可视元素（例如服务、值对象）放在此处 -->        </fx:Declarations>        <mx:AdvancedDataGrid x="71"   itemRollOver="_selectedCount=event.rowIndex" id="adg" dataProvider="{_data}" y="79"  designViewDataType="flat" width="424" height="218">                <mx:columns>                        <mx:AdvancedDataGridColumn headerText="ID" dataField="uid" itemRenderer="AdvancedDataGridItem"/>                        <mx:AdvancedDataGridColumn headerText="姓名" dataField="name" itemRenderer="AdvancedDataGridItem"/>                </mx:columns>        </mx:AdvancedDataGrid></s:Application>

itemRenderer的AdvancedDataGridItem：

<?xml version="1.0" encoding="utf-8"?><s:MXAdvancedDataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"                                                                   xmlns:s="library://ns.adobe.com/flex/spark"                                                                   xmlns:mx="library://ns.adobe.com/flex/mx"                                                                   focusEnabled="true">        <mx:Text id="lblData" top="0" left="0" right="0" bottom="0" text="{listData.label}" /></s:MXAdvancedDataGridItemRenderer>