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From: "Justin Mclean (JIRA)" <jira@apache.org>
To: dev@flex.apache.org
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Subject: [jira] [Updated] (FLEX-27575) Cannot refresh DataProvider for Spark
 DropDownList
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     [ https://issues.apache.org/jira/browse/FLEX-27575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Mclean updated FLEX-27575:
---------------------------------

    Labels: easytest  (was: )
    
> Cannot refresh DataProvider for Spark DropDownList
> --------------------------------------------------
>
>                 Key: FLEX-27575
>                 URL: https://issues.apache.org/jira/browse/FLEX-27575
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Spark: DropDownList
>    Affects Versions: Adobe Flex SDK 4.5 (Release)
>         Environment: Affected OS(s): All OS Platforms
> Affected OS(s): All OS Platforms
> Language Found: English
>            Reporter: Adobe JIRA
>              Labels: easytest
>
>       Steps to reproduce:
> 1. Use the following test Application
> <?xml version="1.0" encoding="utf-8"?>
> <s:Application
> 	xmlns:fx="http://ns.adobe.com/mxml/2009"
> 	xmlns:s="library://ns.adobe.com/flex/spark">
> 	
> 	<fx:Declarations>
> 		<s:ArrayCollection id="dataProvider">
> 			<fx:Number>1</fx:Number>
> 			<fx:Number>2</fx:Number>
> 			<fx:Number>3</fx:Number>
> 		</s:ArrayCollection>
> 	</fx:Declarations>
> 	
> 	<fx:Script>
> 		<![CDATA[
> 			import spark.events.IndexChangeEvent;
> 			
> 			
> 			private function handleIndexChange(event: IndexChangeEvent): void {
> 				dataProvider.refresh();
> 			}
> 			
> 		]]
>       >
> 	</fx:Script>
> 	
> 	<s:Group width="500" height="500" horizontalCenter="0" verticalCenter="0">
> 		<s:DropDownList
> 			dataProvider="{dataProvider}" selectedIndex="0"
> 			change="handleIndexChange(event)"
> 			/>
> 	</s:Group>
> </s:Application>
> 2. Select value from DropDownList
>  
>  Actual Results:
>  TypeError: Error #1009: Cannot access a property or method of a null object reference.
> 	at Function/<anonymous>()[E:\dev\hero_private\frameworks\projects\spark\src\spark\components\List.as:1398]
>  
>  Expected Results:
>  -
>  
>  Workaround (if any):
>  -
>  Notes:
>  List.dataProviderRefreshed() creates functions which in their turn use optional "dataGroup" skin part. SkinPart is already removed by the time aforementioned function executes.
>     

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