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https://issues.apache.org/jira/browse/FLEX-25906?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13637245#comment-13637245
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Jeremy Wischusen edited comment on FLEX-25906 at 4/20/13 1:18 PM:
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This is still occurring using SDK 4.9.1 on Mac OS X 10.7.5.
<?xml version="1.0"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark">
<fx:Script>
<![CDATA[
import mx.collections.ArrayList;
[Bindable]
private var dp1:ArrayList = new ArrayList(['dp1-1', 'dp1-2', 'dp1-3']);
[Bindable]
private var dp2:ArrayList = new ArrayList(['dp2-1', 'dp2-2', 'dp2-3']);
private function switchDP(e:Event):void {
if (myComboBox.dataProvider == dp1) {
myComboBox.dataProvider = dp2;
} else {
myComboBox.dataProvider = dp1;
}
}
]]>
</fx:Script>
<s:HGroup>
<s:ComboBox id="myComboBox" dataProvider="{dp1}"/>
<s:Button id="myButton" click="switchDP(event)" label="Switch Data
Providers"/>
</s:HGroup>
</s:Application>
was (Author: jeremy.wischusen):
This is still occurring using SDK 4.9.1 on Mac OS X 10.7.5.
> ComboBox textInput not cleared when dataprovider changes
> --------------------------------------------------------
>
> Key: FLEX-25906
> URL: https://issues.apache.org/jira/browse/FLEX-25906
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: ComboBox
> Affects Versions: Adobe Flex SDK 4.1 (Release)
> Environment: Affected OS(s): All OS Platforms
> Affected OS(s): All OS Platforms
> Browser: Firefox 3.x
> Language Found: English
> Reporter: Adobe JIRA
> Labels: easytest
>
> Steps to reproduce:
> 1.Create a UI containing a spark ComboBox whose dataprovider can change based
> on user interaction
> 2.Select an item from the combobox
> 3. Change the dataprovider for the combobox to a collection that does not
> contain the selected item. For example if the selected index was 4 change the
> dataprovider to a collection with a length of 3 or less.
>
> Actual Results:
> The selectedIndex and selectedItem properties update as expected but the text
> in the textInput still displays it's original value.
>
>
> Expected Results:
> The text property of the textInput should be cleared or set to null if
> selectedItem is no longer valid.
>
>
> Workaround (if any):
>
> The problem is caused by the fact that the change to the dataprovider causes
> selectedItem to become undefined before the updateLabelDisplay() method of
> ComboBox is called. This will result in displayItem being undefined and thus
> prevent the update to textInput.text on line 677.
> The workaround is to create a component that extends ComboBox and override
> the commitProperties() function. In the overridden function, check if
> selectedIndex == -1 and if so manually set the text to "" before calling
> super.commitProperties.
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