PopUpManager error

[Philippus Scholtz]

Hi

I am getting a weird error when trying to call addPopup() to add a custom popup. It's been working the whole time until I made some minor changes today that broke it, and now I can't seem to get it back in working order.

My code (fired on button click to open popup):

function openActionPopup():void {
     var actionPopup:ViewEditDeletePopup = new  ViewEditDeletePopup();
      PopUpManager.addPopUp(actionPopup, this);  
} 

And in ViewEditDeletePopup.mxml I just have a Panel, which contains an HBox, which in turn contains 3 buttons.

When addPopUp is called, I get the following error: (apart from the error, the popup opens correctly and is completely functional. It's just the error that pops up every time.) My popup mxml does implement IFlexDisplayObject. It's funny because I have another popup elsewhere in the app that I create in the exact same way, but it does not produce the error. However, replacing the ViewEditDeletePopup.mxml with the other popup also doesn't work. I think the problem lies within PopUpManager itself.

The error:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.managers::PopUpManagerImpl/addPopUp()[E:\dev\4.x\frameworks\projec ts\framework\src\mx\managers\PopUpManagerImpl.as:434]
at mx.managers::PopUpManager$/addPopUp()[E:\dev\4.x\frameworks\projects\ framework\src\mx\managers\PopUpManager.as:193]
at com.SecSA.employeesHR.views::ViewEmployees/openActionPopup()[C:\wamp\ www\SecSAView\src\com\SecSA\employeesHR\views\ViewEmployees.mxml:35]
at com.SecSA.employeesHR.views::ViewEmployees/__employeeGrid_itemClick() [C:\wamp\www\SecSAView\src\com\SecSA\employeesHR\views\ViewEmployees.m xml:93]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\4.x\frameworks\projects\f ramework\src\mx\core\UIComponent.as:12528]
at mx.controls.listClasses::ListBase/mouseClickHandler()[E:\dev\4.x\fram eworks\projects\framework\src\mx\controls\listClasses\ListBase.as:1031 9]

What could I be missing?

Thanks!

[Paul Sturrock]

I tend to agree - looks like a PopUpManager issue. Have you looked at the source? Whatever PopUpManagerImpl.as references on line 434 is the issue I think.

[Karthik Jayachandran]

Try using

function openActionPopup():void {       
   var popup:ViewEditDeletePopup= ViewEditDeletePopup(PopUpManager.createPopUp(FlexGlobals.topLevelApplication, ViewEditDeletePopup, true));
}