[ https://issues.apache.org/jira/browse/FLEX-33398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13579733#comment-13579733 ]
Alex Harui commented on FLEX-33398:
-----------------------------------
Hmm. I'd be afraid to build in a call to contains. I think it does linear search on some collections which will be slow if large or complex.
> ComboBox loses selectedItem when dataProvider dispatch reset event
> ------------------------------------------------------------------
>
> Key: FLEX-33398
> URL: https://issues.apache.org/jira/browse/FLEX-33398
> Project: Apache Flex
> Issue Type: Bug
> Components: mx: ComboBox
> Reporter: João Fernandes
> Original Estimate: 1m
> Remaining Estimate: 1m
>
> During a reset Event, combobox does reset the selectedItem but doesn't respect the fact the current selectedItem might be included in the new source.
> What I propose is to change
> else if (ce.kind == CollectionEventKind.RESET)
> {
> collectionChanged = true;
> if (!selectedIndexChanged && !selectedItemChanged)
> selectedIndex = prompt ? -1 : 0;
> invalidateProperties();
> }
> to
> else if (ce.kind == CollectionEventKind.RESET)
> {
> collectionChanged = true;
> if (!selectedIndexChanged && !selectedItemChanged && !collection.contains(selectedItem))
> selectedIndex = prompt ? -1 : 0;
> invalidateProperties();
> }
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