flex datagrid 设置超链接

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" preinitialize="preinit();" creationComplete="creationComplete();" viewSourceURL="srcview/index.html">
<mx:XMLList id="employees">
<employee>
<name>Christina Coenraets</name>
<phone>555-219-2270</phone>
<email>ccoenraets@fictitious.com</email>
</employee>
<employee>
<name>Joanne Wall</name>
<phone>555-219-2012</phone>
<email>jwall@fictitious.com</email>
</employee>
<employee>
<name>Maurice Smith</name>
<phone>555-219-2012</phone>
<email>maurice@fictitious.com</email>
</employee>
<employee>
<name>Mary Jones</name>
<phone>555-219-2000</phone>
<email>mjones@fictitious.com</email>
</employee>
</mx:XMLList>
<mx:Script>
<!--[CDATA[
import mx.collections.ArrayCollection;
import mx.controls.dataGridClasses.DataGridColumn;
import mx.controls.Alert;

private var dataGridColumns:Array = new Array();

private var queryDataGridColumns:ArrayCollection = new ArrayCollection([
{ headerText:"Name", dataField: "name",linkable:true}
,{ headerText:"Phone", dataField: "phone",linkable:false}
,{ headerText:"Email", dataField: "email",linkable:false}
]) ;

private function preinit():void {
for(var i:int =  0; i< queryDataGridColumns.length; i++) {
var dataGridColumn:DataGridColumn = new DataGridColumn();
dataGridColumn.headerText = queryDataGridColumns.getItemAt(i).headerText ;
dataGridColumn.dataField = queryDataGridColumns.getItemAt(i).dataField ;
dataGridColumn.visible = true ;

if(queryDataGridColumns.getItemAt(i).linkable) {
var urlLinkRenderer:ClassFactory = new ClassFactory(UrlLinkRenderer);
urlLinkRenderer.properties = { linkButtonLabel: queryDataGridColumns.getItemAt(i).dataField };
dataGridColumn.itemRenderer = urlLinkRenderer ;
}
dataGridColumns.push(dataGridColumn);
}
}

private function creationComplete():void {
createDataGrid();
this.addEventListener("DataGridLinkButtonClickEvent",linkButtonClickHandler);
}

private function createDataGrid():void {
queryDataGrid.columns = dataGridColumns ;
//BindingUtils.bindProperty(queryDataGrid,"dataProvider",this,"_queryDataGridProvider");
this.addChild(queryDataGrid);
}

private function linkButtonClickHandler(event:LinkButtonDynamicEvent):void {
Alert.show(event.rowObject.name );//输出内容
}
]]-->
</mx:Script>
<mx:DataGrid top="5" left="5" right="5" bottom="5" dataProvider="{employees}" id="queryDataGrid">
</mx:DataGrid>

</mx:Application>

package
{
import mx.events.DynamicEvent;

public class LinkButtonDynamicEvent extends DynamicEvent
{
public var rowObject:Object ;

public function LinkButtonDynamicEvent(type:String, object:Object)
{
super(type, true );
this.rowObject = object ;
}

}
}

package
{
import mx.controls.Label;
import mx.controls.LinkButton;
import flash.events.MouseEvent;
import mx.events.DynamicEvent;

public class UrlLinkRenderer extends LinkButton
{
private var newUrlLink:Label;
private var orderByFilter:String;
[Bindable]
private var _linkButtonLabel:String = "" ;
[Bindable]
private var _rowObject:Object = new Object();
public function UrlLinkRenderer()
{
super();
this.setStyle("textDecoration","underline");
this.setStyle("textAlign","left");
this.addEventListener(MouseEvent.CLICK,linkButtonClickHandler);
}

/**
* Override the set method for the data property. function also sets the data for the
* container instance and sets member variables newId, newLabel, and newCheckBox.selected value
*
*/
override public function set data(value:Object):void
{
super.data = value;

// Make sure there is data
if (value != null) {

//Alert.show("test");
var str:String = "";
for (var i:Object in value) {
str += i + " || " + value[i] + "/n";
}

this._rowObject = value ;
this.label = value[_linkButtonLabel];

}
}

public function set linkButtonLabel(value:String):void {
_linkButtonLabel = value ;
}
public function get linkButtonLabel():String {
return _linkButtonLabel ;
}

private function linkButtonClickHandler(e:MouseEvent):void {
var event:LinkButtonDynamicEvent = new LinkButtonDynamicEvent("DataGridLinkButtonClickEvent",_rowObject);
dispatchEvent(event);
}
}
}