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Posted to issues@flex.apache.org by "Jason Warlikowski (JIRA)" <ji...@apache.org> on 2013/08/23 19:12:51 UTC
[jira] [Commented] (FLEX-32599) TypeError: Error #1009: Cannot
access a property or method of a null object reference.at
mx.controls::AdvancedDataGrid/findHeaderRenderer()mx.controls::AdvancedDataGrid/mouseEventToItemRenderer()
[ https://issues.apache.org/jira/browse/FLEX-32599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13748723#comment-13748723 ]
Jason Warlikowski commented on FLEX-32599:
------------------------------------------
I'm using the release version of 4.10.0, and I'm facing the RTE after scrolling horizontally, so I don't think this fix made it into the release build. As a workaround, I was able to override findHeaderRenderer in a derived class and include the code to continue if headerItem is null.
> TypeError: Error #1009: Cannot access a property or method of a null object reference.at mx.controls::AdvancedDataGrid/findHeaderRenderer()mx.controls::AdvancedDataGrid/mouseEventToItemRenderer()
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FLEX-32599
> URL: https://issues.apache.org/jira/browse/FLEX-32599
> Project: Apache Flex
> Issue Type: Bug
> Components: Advanced Data Grid
> Affects Versions: Adobe Flex SDK Previous
> Environment: Affected OS(s): Windows
> Affected OS(s):
> Language Found: English
> Reporter: Adobe JIRA
> Assignee: Justin Mclean
> Priority: Minor
> Fix For: Apache Flex 4.10.0
>
>
> Steps to reproduce:
> 1. Columns created
> 2. dataProvider is initializing
> 3. moving to header of the grid then error occured.
>
> Actual Results:
> runtime error occured
> TypeError: Error #1009: Cannot access a property or method of a null object reference.
> at mx.controls::AdvancedDataGrid/findHeaderRenderer()
> at mx.controls::AdvancedDataGrid/mouseEventToItemRenderer()
> at mx.controls.listClasses::AdvancedListBase/mouseMoveHandler()
>
> Expected Results:
> no error should be occur.
>
> Workaround (if any):
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