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https://issues.apache.org/jira/browse/FLEX-17300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13640076#comment-13640076
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Justin Mclean commented on FLEX-17300:
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Also test if this is issue with spark Lists
> After filtering datagrid's dataprovider (arraycollection) not deselecting
> selectedItem
> --------------------------------------------------------------------------------------
>
> Key: FLEX-17300
> URL: https://issues.apache.org/jira/browse/FLEX-17300
> Project: Apache Flex
> Issue Type: Bug
> Components: Data Binding, mx: DataGrid, mx: List
> Affects Versions: Adobe Flex SDK Previous
> Environment: Affected OS(s): Windows
> Affected OS(s): Windows XP
> Language Found: English
> Reporter: Adobe JIRA
> Priority: Minor
> Labels: easyfix, easytest
>
> Steps to reproduce:
> 1. Run the app,
> 2. Select any row in the datagrid and click the button.
>
> 3. If you clicked the first row, the component should still show Test1,
> otherwise it should show nothing.
>
> Actual Results:
> The selectedItem in the datagrid doesn't change when the dataprovider filters
> the actual item out.
> Even setting the datagrid.selectedItem to null doesn't work.
> Expected Results:
> When you click the button after selecting the second or third row, you should
> see the component at the top clear it's value as it's bound to the
> selectedItem of the datagrid and that datagrid has filtered out the second
> and third rows.
>
> Workaround (if any):
> The only workaround is to explicitly set the datagrid's selectedIndex to -1.
> (Workaround is commented in the submission).
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