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https://issues.apache.org/jira/browse/FLEX-33005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285498#comment-14285498
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Mihai Chira commented on FLEX-33005:
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[~busitech], do you think you could add a unit test or a Mustella test to
reproduce this bug? If so, I could verify and apply your patch. But I'm afraid
given the current description I don't know how to reproduce the bug.
> HierarchicalCollectionView does not update indexes for internal arrays when
> object uid changes
> ----------------------------------------------------------------------------------------------
>
> Key: FLEX-33005
> URL: https://issues.apache.org/jira/browse/FLEX-33005
> Project: Apache Flex
> Issue Type: Bug
> Components: Advanced Data Grid
> Affects Versions: Adobe Flex SDK Previous
> Environment: Affected OS(s): All OS Platforms
> Language Found: English
> Reporter: Adobe JIRA
> Labels: easyfix, easytest
> Attachments: FLEX-33005.patch
>
>
> Steps to reproduce:
> 1. Configure Data Services with Parent/Child bidirectional association
> between two Managed classes
> 2. Set up an Advanced Data Grid to display the data using HierarchicalData
> object as data source.
> 3. Create Parent, Commit
> 4. Create a Child for the parent, with one more Child below
> 5. Add the first Child to the Parent children array
> 6. Expand the first Child in the Advanced Data Grid, to display the second
> Child, Commit
> Actual Results:
>
> The first Child node will close during
> ConcreteDataService.internalUpdateCache. Now the control doesn't know how
> many items are in the list. Drag and Drop operations that hover over the
> empty rows close to the bottom of the list will crash the Advanced Data Grid
> control. The internal arrays indexed by UID are now stale, and leak memory.
>
> Expected Results:
>
> No crash, leak or auto-closing tree nodes.
> Workaround (if any):
> None tested. Maybe one could avoid adding the records to the managed
> association collections on the client side at all, to prevent Advanced Data
> Grid from having knowledge about the temporary UIDs, and just refresh fill
> every time an inserted record happens?
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