[jira] [Updated] (FLEX-14936) List selectedItem and selectedIndex not updated on refresh() using empty array

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

     [ https://issues.apache.org/jira/browse/FLEX-14936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Mclean updated FLEX-14936:
---------------------------------

    Labels: easytest  (was: )
    
> List selectedItem and selectedIndex not updated on refresh() using empty array
> ------------------------------------------------------------------------------
>
>                 Key: FLEX-14936
>                 URL: https://issues.apache.org/jira/browse/FLEX-14936
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: mx: List
>    Affects Versions: Adobe Flex SDK 3.0 (Release)
>         Environment: Affected OS(s): All OS Platforms
> Browser: Firefox 2.x
> Language Found: English
>            Reporter: Adobe JIRA
>              Labels: easytest
>
>       Steps to reproduce:
> 1. Run the following test application in debug mode
> 2. Select the last item in the list, and then click the "Delete Last Item" button
> 3. Look at the trace output to see the problem when deleting the last item in the array.
> <?xml version="1.0" encoding="utf-8"?>
> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" initialize="init()">
>     <mx:Script>
> 		<![CDATA[
>             private var items:Array = [ "One", "Two", "Three" ];
>             private function init() {
>             	list.dataProvider = items;
>             }
>             private function removeItem(event:Event) {
>             	trace("before: selected index = " + list.selectedIndex);
>         		items.pop();
>                 list.dataProvider.refresh();
>                 trace("after: selected index = " + list.selectedIndex);
>             }    
> 		]]
>       >
> 	</mx:Script>	
> 	<mx:Button label="Delete Last Item" click="removeItem(event);" />
>     <mx:List id="list" width="100"/>
> </mx:Application>
>  
>  Actual Results:
>  After each deletion, the selectedIndex property on the list should be -1, indicating no selection since the previously selected item was deleted.
>  
>  Expected Results:
>  Works as expected until the final element is removed.  In that case the list still shows the selectedIndex as 0 (not -1)
>  
>  Workaround (if any):
>  Check if (list.dataProvider.length == 0) after doing the refresh(), and manually set selectedIndex = -1.
>     

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