flex设置DataGrid某列的字体为粗体

1.基于mx:DataGridItemRenderer编写自定义组件：BoldFontRender.mxml文件 代码如下

<?xml version="1.0" encoding="utf-8"?>
<mx:DataGridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009" 
xmlns:s="library://ns.adobe.com/flex/spark" 
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Declarations>
<!-- 将非可视元素（例如服务、值对象）放在此处 -->
</fx:Declarations>
<fx:Script>
<![CDATA[

override public function set data(value:Object):void{
super.data=value;

this.text = value.value;
this.setStyle("fontWeight","bold");
}
]]>
</fx:Script>

</mx:DataGridItemRenderer>

2.用代码创建DataGridColumn 时指定列的属性itemRenderer 为上述自定义类，注意用new ClassFactory

var colName:String = "属性名称";
var dc0:DataGridColumn = new DataGridColumn(colName);
dc0.itemRenderer = new ClassFactory(BoldFontRender);