[jira] [Resolved] (FLEX-33158) addSortField method in the AdvancedDataGridEx works inconsistently

["Justin Mclean (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLEX-33158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Mclean resolved FLEX-33158.
----------------------------------

    Resolution: Fixed

Checked into develop branch
                
> addSortField method in the AdvancedDataGridEx works inconsistently 
> -------------------------------------------------------------------
>
>                 Key: FLEX-33158
>                 URL: https://issues.apache.org/jira/browse/FLEX-33158
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: ADG:MultiColumnSorting
>    Affects Versions: Adobe Flex SDK 4.5 (Release)
>            Reporter: Robert Bar
>            Assignee: Justin Mclean
>            Priority: Minor
>             Fix For: Adobe Flex SDK 4.5 (Release)
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Please assume you have the ADG instance which has a data provider set to an ArrayCollection with custom compare function associated with the Sort object. The Sort object contains some fields, so that the ADG shows many sorting arrows. 
> If you ctrl+click header of an unsorted column, then ADG reuses the existing Sort object and adds the field to the collection, so that your custom comparison function is still in use. Next, if you click  header of another column, so that only one column is sorted, then as the result, ADG will replace the custom Sort object with blank Sort object and the custom comparison function is lost.
> Basic workaround:
> coll.addEventListener("sortChanged", sortChangedHandler);
> private function sortChangedHandler(event : Event) : void
> {
>        if (coll.sort)
>        coll.sort.compareFunction = myCustomSortFunction;
> }

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