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https://issues.apache.org/jira/browse/FLEX-33341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13545618#comment-13545618
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Alex Harui commented on FLEX-33341:
-----------------------------------
IMO, it is a bug if a UI control:
1) Assume a ListCollectionView vs an ICollectionView
2) Use both ICollectionView and IList APIs to access to the dataprovider
I haven't looked to see what it would take to clean that up but separate bugs
should be filed for that work.
> VectorCollection becomes progressively slower
> ---------------------------------------------
>
> Key: FLEX-33341
> URL: https://issues.apache.org/jira/browse/FLEX-33341
> Project: Apache Flex
> Issue Type: Improvement
> Components: Collections
> Affects Versions: Apache Flex 4.9.0
> Environment: Flash Player 11.5
> Reporter: Simon Gladman
> Labels: VectorCollection
> Fix For: Apache Flex 4.9.0
>
>
> If I repeatedly addItem() and removeAll() from a VectorCollection, the
> removeAll() and refresh() methods become progressively slower.
> An example can be found here:
> http://flexmonkey.blogspot.co.uk/2013/01/apache-flex-490-vectorcollection-vs.html
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