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https://issues.apache.org/jira/browse/FLEX-26308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Mclean resolved FLEX-26308.
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Resolution: Fixed
Fix Version/s: Apache Flex 4.12.0
> ListCollectionView addAllAt causes RTE on filtered collections
> --------------------------------------------------------------
>
> Key: FLEX-26308
> URL: https://issues.apache.org/jira/browse/FLEX-26308
> Project: Apache Flex
> Issue Type: Bug
> Components: Collections
> Affects Versions: Adobe Flex SDK 4.1 (Release)
> Environment: Affected OS(s): All OS Platforms
> Affected OS(s): All OS Platforms
> Browser: Internet Explorer 8.x
> Language Found: English
> Reporter: Adobe JIRA
> Assignee: Justin Mclean
> Priority: Minor
> Fix For: Apache Flex 4.12.0
>
>
> Steps to reproduce:
> 1.Create an ArrayCollection with multiple items.
> 2.Apply a filter function that filters all items out.
> 3.Use the addAll method to add multiple items to the original collection
> while it's filtered.
>
> Actual Results:
> A RangeError saying "Index '1' specified is out of bounds."
>
> Expected Results:
> No error and items to all be added to the source list.
>
> Workaround (if any):
> Create a for each loop that uses addItem instead.
> The problem seems to lie in the ListCollectionView.addAllAt method. It loops
> over the addList using a for loop and attempts to addItemAt with each one,
> incrementing the index it adds at. addItemAt throws a RangeError if the
> index is greater than the length (which will be 0 if the filter applies to
> all items in the collection) so after the first item is added at index 0, the
> next item is attempted to be added at index 1 which is greater than the
> length of 0 and a RangeError is thrown.
> Found in the Flex SDK 4.1 release build 16076
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