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https://issues.apache.org/jira/browse/FLEX-27290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Justin Mclean resolved FLEX-27290.
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Resolution: Duplicate
> Entering text into ComboBox and pressing Backspace results in error
> -------------------------------------------------------------------
>
> Key: FLEX-27290
> URL: https://issues.apache.org/jira/browse/FLEX-27290
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: ComboBox
> Affects Versions: Adobe Flex SDK 4.5 (Release)
> Environment: Affected OS(s): Windows
> Affected OS(s): Windows 7
> Language Found: English
> Reporter: Adobe JIRA
>
> Flash Builder 4.0.1
> Flex SDK 4.5.0.19786 + AIR SDK 2.6
> Import and run the attached FXP through the debug tool. When I type something
> into the ComboBox TextInput and press the Backspace key, the following error
> appears in the console:
> TypeError: Error #1009: Cannot access a property or method of a null object
> reference.
> at
> spark.accessibility::ComboBoxAccImpl/eventHandler()[E:\dev\hero_private\frameworks\projects\spark\src\spark\accessibility\ComboBoxAccImpl.as:514]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> mx.core::UIComponent/dispatchEvent()[E:\dev\hero_private\frameworks\projects\framework\src\mx\core\UIComponent.as:13072]
> at
> spark.components.supportClasses::DropDownListBase/http://www.adobe.com/2006/flex/mx/internal::changeHighlightedSelection()[E:\dev\hero_private\frameworks\projects\spark\src\spark\components\supportClasses\DropDownListBase.as:647]
> at
> spark.components::ComboBox/textInput_changeHandler()[E:\dev\hero_private\frameworks\projects\spark\src\spark\components\ComboBox.as:1015]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> mx.core::UIComponent/dispatchEvent()[E:\dev\hero_private\frameworks\projects\framework\src\mx\core\UIComponent.as:13072]
> at
> spark.components.supportClasses::SkinnableTextBase/textDisplay_changeHandler()[E:\dev\hero_private\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableTextBase.as:1976]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> mx.core::UIComponent/dispatchEvent()[E:\dev\hero_private\frameworks\projects\framework\src\mx\core\UIComponent.as:13072]
> at
> spark.components::RichEditableText/textContainerManager_flowOperationCompleteHandler()[E:\dev\hero_private\frameworks\projects\spark\src\spark\components\RichEditableText.as:4743]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> flashx.textLayout.container::TextContainerManager/dispatchEvent()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\container\TextContainerManager.as:1553]
> at flash.events::EventDispatcher/dispatchEventFunction()
> at flash.events::EventDispatcher/dispatchEvent()
> at
> flashx.textLayout.elements::TextFlow/dispatchEvent()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\elements\TextFlow.as:859]
> at
> flashx.textLayout.edit::EditManager/finalizeDo()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\edit\EditManager.as:669]
> at
> flashx.textLayout.edit::EditManager/doOperation()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\edit\EditManager.as:613]
> at
> flashx.textLayout.edit::EditManager/deletePreviousCharacter()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\edit\EditManager.as:1374]
> at
> flashx.textLayout.edit::EditManager/keyDownHandler()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\edit\EditManager.as:362]
> at
> flashx.textLayout.container::ContainerController/keyDownHandler()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\container\ContainerController.as:2447]
> at
> flashx.textLayout.container::TextContainerManager/keyDownHandler()[C:\Vellum\branches\v2\2.0\dev\output\openSource\textLayout\src\flashx\textLayout\container\TextContainerManager.as:1844]
> at
> spark.components.supportClasses::RichEditableTextContainerManager/keyDownHandler()[E:\dev\hero_private\frameworks\projects\spark\src\spark\components\supportClasses\RichEditableTextContainerManager.as:599]
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