[#SDK-16908] Error #1009 when tabbing between custom item editors in a DataGrid

Flex SDK

Error #1009 when tabbing between custom item editors in a DataGrid

Created: 09/17/08 02:30 PM Updated: 10/09/08 07:18 PM

Component/s:

mx: DataGrid

Security Level:

Public (All JIRA Users )

File Attachments:

DataGridItemEditorTabBug.mxml (1 kb)
2.

DataGridItemEditorTabBug.zip (561 kb)
3.

MyItemEditor.mxml (0.1 kb)

Severity:	Runtime Error
Reproducibility:	Every Time
Discoverability:	High
Found in Version:	SDK Flex 3.2.0
Affected OS(s):	Windows - XP
Steps to Reproduce:	« Hide Using Flex 3.2.0 build 3238 and 9/11 AIR drop Steps to reproduce: 1. Create editable DataGrid and editable columns with a custom ItemRenderer (e.g. a TextInput) and rendererIsEditor=true 2. Try to tab from one editable cell to the next Actual Results: RTE below TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::DataGrid/itemEditorItemEditBeginHandler()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\DataGrid.as:4792] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:9294] at mx.controls::DataGrid/commitEditedItemPosition()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\DataGrid.as:3683] at mx.controls::DataGrid/updateDisplayList()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\DataGrid.as:1500] at mx.controls.listClasses::ListBase/validateDisplayList()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\listClasses\ListBase.as:3280] at mx.managers::LayoutManager/validateDisplayList()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:622] at mx.managers::LayoutManager/doPhasedInstantiation()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:695] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.core::UIComponent/callLaterDispatcher2()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:8624] at mx.core::UIComponent/callLaterDispatcher()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:8564] Expected Results: No RTE Workaround (if any): none that I know of Show » Using Flex 3.2.0 build 3238 and 9/11 AIR drop Steps to reproduce: 1. Create editable DataGrid and editable columns with a custom ItemRenderer (e.g. a TextInput) and rendererIsEditor=true 2. Try to tab from one editable cell to the next Actual Results: RTE below TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::DataGrid/itemEditorItemEditBeginHandler()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\DataGrid.as:4792] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:9294] at mx.controls::DataGrid/commitEditedItemPosition()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\DataGrid.as:3683] at mx.controls::DataGrid/updateDisplayList()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\DataGrid.as:1500] at mx.controls.listClasses::ListBase/validateDisplayList()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\listClasses\ListBase.as:3280] at mx.managers::LayoutManager/validateDisplayList()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:622] at mx.managers::LayoutManager/doPhasedInstantiation()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:695] at Function/http://adobe.com/AS3/2006/builtin::apply() at mx.core::UIComponent/callLaterDispatcher2()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:8624] at mx.core::UIComponent/callLaterDispatcher()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:8564] Expected Results: No RTE Workaround (if any): none that I know of
Language Found:	English
Bugbase Id:	none
QA Owner:	Robert Vollmar (Adobe)
Resolved by:	Robert Vollmar (Adobe)
Participants:	Andy Goldstein and Robert Vollmar (Adobe)

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Comments

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Andy Goldstein - [09/17/08 04:32 PM ]

The zip file I attached contains an incorrect version of the code that I was using to verify the issue wasn't in Flex 3/AIR 1.0. Please use the attached source files instead.

Thanks!
Andy

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Andy Goldstein - [10/06/08 09:57 AM ]

I am able to reproduce this in 3.1.0 (build 2710) as well.

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Andy Goldstein - [10/06/08 10:50 AM ]

This seems to happen only if you tab between two columns that are both editable and set up with itemRenderer="MyItemRendererClass" and rendererIsEditor="true". If you have 4 columns, with the first and third set up using the custom item renderer, and the 2nd and 4th columns set up using some other itemRenderer (e.g. mx.controls.CheckBox) with rendererIsEditor="true", the RTE doesn't occur when tabbing between them.

I put (or uncommented) some trace statements in some methods in DataGrid. Here is what happens for an editable DataGrid without custom itemRenderers (i.e. it uses the default TextInput editor built in to the DataGrid):

itemEditorItemEditEndHandler
destroyItemEditor
itemEditorItemEditBeginningHandler
commitEditedItemPosition 0 0
itemEditorItemEditBeginHandler
itemEditorFocusOut null

Here is what happens for an editable DataGrid with multiple sequential columns configured with a custom itemRenderer (as simple as an MXML file containing a TextInput component) and rendererIsEditor set to true:

itemEditorItemEditEndHandler
destroyItemEditor
itemEditorItemEditBeginningHandler
commitEditedItemPosition 0 0
itemEditorItemEditBeginHandler
itemEditorItemEditEndHandler
destroyItemEditor
itemEditorItemEditBeginningHandler (last trace statement before RTE)

I'm not sure if this means anything, but the methods that are called are different when using a custom itemRenderer/rendererIsEditor vs. when using the standard default TextInput item editor.

Andy

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Robert Vollmar (Adobe) - [10/09/08 07:16 PM - edited ]

Able to repro. in the build Andy filed it for, but no longer able to repro. in 3.2.0.3474 or 4.0.0.3516. Closing.