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https://issues.apache.org/jira/browse/FLEX-33450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13636434#comment-13636434
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Kenneth Sutherland commented on FLEX-33450:
-------------------------------------------
I've been looking at this and the error only appears in the following FP
versions.
Version 10.3.183.15 FAIL
Version 10.3.183.18 FAIL
Version 10.3.183.20 FAIL
Version 10.3.183.25 FAIL
Version 10.3.183.63 FAIL
Version 11.4.402.287 FAIL
Version 11.5.502.110 FAIL
Version 11.7.700.169 FAIL
Running the attached code project with these FP version results in no black
screen.
Version 10.1.85.3 OK
Version 10.2.159.1 OK
Version 10.3.183.10 OK
This is IE 8 and windows only.
> 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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