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Date: Wed, 3 Apr 2013 03:49:18 +0000 (UTC)
From: "Alex Harui (JIRA)" <jira@apache.org>
To: dev@flex.apache.org
Message-ID: <JIRA.12638889.1364225791154.96594.1364960958016@arcas>
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Subject: [jira] [Commented] (FLEX-33450) RTE - PopupManager
 mx.controls.DataGrid
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    [ https://issues.apache.org/jira/browse/FLEX-33450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13620576#comment-13620576 ] 

Alex Harui commented on FLEX-33450:
-----------------------------------

I think you have to test if getFocus() is a UIComponent then cast to UIComponent and access the owner property.
                
> RTE - PopupManager mx.controls.DataGrid
> ---------------------------------------
>
>                 Key: FLEX-33450
>                 URL: https://issues.apache.org/jira/browse/FLEX-33450
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: mx: DataGrid, PopUp Manager
>    Affects Versions: Adobe Flex SDK 4.5 (Release), Apache Flex 4.9.0
>         Environment: Internet Explorer 8, Windows 7, FlashPlayer version [WIN 11,4,402,287]
>            Reporter: Bharath
>            Assignee: Alex Harui
>            Priority: Blocker
>         Attachments: TestPopup.fxp
>
>
> I'm getting a Runtime Exception on Internet Explorer [TypeError: Error #1009: Cannot access a property or method of a null object reference.] when showing DataGrids on a TitleWindow using PopupManager. It works fine on FireFox. Unfortunately, all our users prefer Internet Explorer.
> 1) Open a TitleWindow from the main application.Two DataGrids are laid on a TitleWindow vertically. 
> 2) Click into an editable column on the FIRST DataGrid and type something.
> 3) Move your mouse to another application (For eg., Outlook). 
> 4) Now click into an editable column on the SECOND DataGrid.
> 5) The following exception is raised and the screen goes BLACK.
> TypeError: Error #1009: Cannot access a property or method of a null object reference.
> 	at mx.controls::DataGrid/itemEditorItemEditBeginHandler()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/mx/src/mx/controls/DataGrid.as:5287]
> 	at flash.events::EventDispatcher/dispatchEventFunction()
> 	at flash.events::EventDispatcher/dispatchEvent()
> 	at mx.core::UIComponent/dispatchEvent()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:13160]
> 	at mx.controls::DataGrid/commitEditedItemPosition()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/mx/src/mx/controls/DataGrid.as:4115]
> 	at mx.controls::DataGrid/updateDisplayList()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/mx/src/mx/controls/DataGrid.as:1822]
> 	at mx.controls.listClasses::ListBase/validateDisplayList()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/mx/src/mx/controls/listClasses/ListBase.as:3968]
> 	at mx.managers::LayoutManager/validateDisplayList()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/LayoutManager.as:744]
> 	at mx.managers::LayoutManager/doPhasedInstantiation()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/LayoutManager.as:827]
> 	at mx.managers::LayoutManager/doPhasedInstantiationCallback()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/LayoutManager.as:1188]
> 	at flash.utils::Timer/_timerDispatch()
> 	at flash.utils::Timer/tick()

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