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https://issues.apache.org/jira/browse/FLEX-33935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832530#comment-13832530
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Andrey Fel commented on FLEX-33935:
-----------------------------------
When change event is dispatched DropDownList.enabled is set to false. It
invalidates the skin, but the skin is not redrawn, updateDisplayList is not
called for the skin.
> DropDownList doesn't handle selection properly if it is disabled immediately
> ----------------------------------------------------------------------------
>
> Key: FLEX-33935
> URL: https://issues.apache.org/jira/browse/FLEX-33935
> Project: Apache Flex
> Issue Type: Bug
> Affects Versions: Apache Flex 4.11.0
> Reporter: Andrey Fel
>
> Here is the test app code to reproduce the issue:
> <?xml version="1.0"?>
> <s:Application
> xmlns:fx="http://ns.adobe.com/mxml/2009";
> xmlns:s="library://ns.adobe.com/flex/spark"
> xmlns:mx="library://ns.adobe.com/flex/mx"
> >
> <fx:Script>
> <![CDATA[
> import mx.collections.ArrayCollection;
>
> [Bindable]
> public var cards:ArrayCollection = new ArrayCollection(
> [ {label:"Visa", data:1},
> {label:"MasterCard", data:2},
> {label:"American Express", data:3} ]);
>
> ]]>
> </fx:Script>
>
> <s:DropDownList id="list" dataProvider="{cards}" width="150"
> color="0x000000"
> enabled="{list.selectedIndex == -1}"/>
>
>
> </s:Application>
> Try to select something in the DropDownList. It goes to invalid state.
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