1、错误描写叙述

ReferenceError: Error #1069: 在 spark.components.RadioButtonGroup 上找不到属性 label，且没有默认值。

at Chart/radiogroup_itemClickHandler()[E:\Flash Builder\Map\src\Chart.mxml:49] at Chart/__radiogroup_itemClick()[E:\Flash Builder\Map\src\Chart.mxml:58] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at spark.components::RadioButton/buttonReleased()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\RadioButton.as:554] at spark.components.supportClasses::ButtonBase/mouseEventHandler()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\supportClasses\ButtonBase.as:1054]

protected function radiogroup_itemClickHandler(event:ItemClickEvent):void{	if(event.currentTarget.label=="周")	{		Alert.show("OK!");	}}

3、解决的方法

本文转自mfrbuaa博客园博客，原文链接：http://www.cnblogs.com/mfrbuaa/p/5073456.html，如需转载请自行联系原作者