如何使得双击开始编辑Flex Tree控件的条目

 

更改Flex 3 Tree组件的默认编辑行为，由双击事件替代默认单击事件才开始编辑条目。

 

<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="1024" minHeight="768" backgroundColor="#FFFFFF" viewSourceURL="srcview/index.html"><mx:Script><!--[CDATA[import mx.controls.Tree;import mx.events.ListEvent;[Bindable]private var treeData: XML = <tree><node label="First Node"><node label="First Child" /><node label="Second Child" /></node><node label="Second Node"><node label="First Child" /><node label="Second Child"><node label="Third Child" /><node label="Fourth Child" /></node></node></tree>/** * double click on a tree item */protected function tree1_doubleClickHandler(event: ListEvent ):void{Tree( event.target ).editedItemPosition = { columnIndex: 0, rowIndex: event.rowIndex };}protected function tree1_itemEditBeginningHandler(event:ListEvent):void{event.preventDefault();}]]--></mx:Script><mx:Tree x="0" y="0" width="100%" height="100%"labelField="@label"showRoot="false"editable="true"doubleClickEnabled="true"itemDoubleClick="tree1_doubleClickHandler(event)"itemEditBeginning="tree1_itemEditBeginningHandler(event)"dataProvider="{treeData}"></mx:Tree></mx:Application>