Apache flex Flex 3弹出菜单按钮和引用错误#1069

我在Flex3应用程序中有一个弹出菜单按钮。如果有人点击下拉部分，它工作正常。但是，如果他们点击主按钮部分，我会 获取引用错误：错误#1069。在用户排除错误后，它会执行它应该执行的操作

<mx:PopUpMenuButton
    id="myPopUpMenuButton2"
    label="Flip"
    labelField="@label"
    dataProvider="{myList2}" 
    itemClick="popUpMenuButtonClickHandler2(event);flipperPhotoSearcher1(event.item.@neigborhoodNum, event.item.@imageSeries);"
    click="defaultpopUpMenuButtonClickHandler2()"
/>


public function popUpMenuButtonClickHandler2(event:MenuEvent):void {
        mainViewStack.selectedChild = this[event.item.@chosen];
        myPopUpMenuButton2.label = event.item.@label;
        neighborhoodPopUpMenuButton.label = "Neighborhoods";
    }  


public function defaultpopUpMenuButtonClickHandler2():void {
        mainViewStack.selectedChild = home;
        myPopUpMenuButton2.label = 'Adams Morgan';
        flipperPhotoSearcher1(2,1);
        neighborhoodPopUpMenuButton.label = "Neighborhoods";
    }   

公共函数popUpMenuButtonClickHandler2（事件：MenuEvent）：无效{
mainViewStack.selectedChild=此[event.item.@Selected]；
myPopUpMenuButton2.label=event.item.@label；
Neighborhood PopupMenuButton.label=“Neighborhoods”；
}  
公共函数defaultpopUpMenuButtonClickHandler2（）：void{
mainViewStack.selectedChild=home；
myPopUpMenuButton2.label='Adams Morgan'；
flipperPhotoSearcher1（2,1）；
Neighborhood PopupMenuButton.label=“Neighborhoods”；
}   

你知道我做错了什么吗

多谢各位

---

-Laxmidi

在代码的MXML部分中，单击处理程序必须像itemClick事件处理程序一样传递事件参数

click="defaultpopUpMenuButtonClickHandler2()"
should be...
click="defaultpopUpMenuButtonClickHandler2(event)"
or, you could do this...
click="defaultpopUpMenuButtonClickHandler2(null)"

但是处理程序应该以MouseEvent类型接收事件，而不是ItemClick

public function defaultpopUpMenuButtonClickHandler2():void {
should be...
public function defaultpopUpMenuButtonClickHandler2(event:MouseEvent):void {

---

天气

null

是否已通过。

能否发布准确的堆栈跟踪？谢谢