mx:PopUpMenuButton的异常问题

[wr410]

随便弄一个PopUpMenuButton在页面上（有选项数据，宽度为10），然后点右边箭头弹出选项栏，之后在别的地方点一下，这个PopUpMenuButton就不见了，再鼠标移上去，就弹出异常提示：ArgumentError: 状态“popUpOver”未定义。

原因 和 怎样解决？

<mx:PopUpMenuButton id="popupbtn_sendKey" width="20" height="60" labelField="@label" itemClick="popupbtn_sendKey_itemClickHandler(event)"/>

ArgumentError: 状态“popUpOver”未定义。
	at mx.core::UIComponent/getState()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:9424]
	at mx.core::UIComponent/findCommonBaseState()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:9444]
	at mx.core::UIComponent/commitCurrentState()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:9275]
	at mx.core::UIComponent/setCurrentState()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:9220]
	at mx.core::UIComponent/set currentState()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\core\UIComponent.as:5740]
	at mx.controls::Button/http://www.adobe.com/2006/flex/mx/internal::viewSkinForPhase()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\Button.as:2045]
	at mx.controls::PopUpButton/http://www.adobe.com/2006/flex/mx/internal::viewSkin()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\PopUpButton.as:718]
	at mx.controls::PopUpButton/rollOverHandler()[E:\dev\gumbo_beta2\frameworks\projects\framework\src\mx\controls\PopUpButton.as:1114]

[xuetao121]

代码都帖出来，就给这点怎么给你看，你的方法写错了一样报错，帮助文档的例子，自己看看哪里有问题吧

<?xml version="1.0" encoding="utf-8"?>
<!-- PopUpMenuButton control example. -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">

    <mx:Script>
        <![CDATA[
            import mx.events.*;
            import mx.controls.*;
            
            //Event handler, invoked when you select from the menu.
            public function itemClickHandler(event:MenuEvent):void {
                Alert.show("Menu label: " + event.label
                    + "  \n menu item index within parent menu: " + event.index);
            }
        ]]>
    </mx:Script>
    
    <!-- A an data provider in E4X format. -->
    <mx:XMLList id="treeDP2">
        <node label="Inbox"/>
        <node label="Calendar"/>
        <node label="Deleted Items"/>
    </mx:XMLList>

    <mx:Panel title="PopUpMenuButton Control Example" height="100%" width="100%" 
        paddingTop="10" paddingLeft="10" paddingRight="10">

        <mx:Label width="100%" color="blue"
            text="Click the down arrow to open the menu."/>

        <mx:PopUpMenuButton id="p2" 
            dataProvider="{treeDP2}" 
            labelField="@label"
            itemClick="itemClickHandler(event);"/>

    </mx:Panel>
</mx:Application>

[huangxin5257]

估计是你在popupbtn_sendKey_itemClickHandler里面修改PopUpMenuButton的数据源了吧？