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https://issues.apache.org/jira/browse/FLEX-33987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13845179#comment-13845179
]
Alexander Mazuruk commented on FLEX-33987:
------------------------------------------
TypeError: Error #1009: Cannot access a property or method of a null object
reference.
at
mx.managers::FocusManager/getNextFocusManagerComponent()[E:\dev\4.5.1\frameworks\projects\framework\src\mx\managers\FocusManager.as:1486]
at
spark.components.gridClasses::DataGridEditor/setFocusInItemRenderer()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\gridClasses\DataGridEditor.as:681]
at
spark.components.gridClasses::DataGridEditor/http://www.adobe.com/2006/flex/mx/internal::createItemEditor()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\gridClasses\DataGridEditor.as:628]
at
spark.components.gridClasses::DataGridEditor/setEditedItemPosition()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\gridClasses\DataGridEditor.as:286]
at
spark.components.gridClasses::DataGridEditor/dataGrid_gridItemEditorSessionStartingHandler()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\gridClasses\DataGridEditor.as:1204]
at
spark.components.gridClasses::DataGridEditor/startItemEditorSession()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\gridClasses\DataGridEditor.as:793]
at
spark.components::DataGrid/startItemEditorSession()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\DataGrid.as:3803]
at
spark.components.gridClasses::DataGridEditor/grid_gridMouseUpHandler()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\gridClasses\DataGridEditor.as:1379]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()
at
spark.components::Grid/dispatchGridEvent()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\Grid.as:4038]
at
spark.components::Grid/grid_mouseDownDragUpHandler()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\components\Grid.as:3883]
at
Function/<anonymous>()[E:\dev\4.5.1\frameworks\projects\spark\src\spark\utils\MouseEventUtil.as:96]
> FocusManager NPE
> ----------------
>
> Key: FLEX-33987
> URL: https://issues.apache.org/jira/browse/FLEX-33987
> Project: Apache Flex
> Issue Type: Bug
> Affects Versions: Apache Flex 4.11.0
> Reporter: Alexander Mazuruk
> Priority: Critical
>
> FocusManager Null pointer exception occurs.
> This:
> public function getNextFocusManagerComponent(
> backward:Boolean = false):IFocusManagerComponent
> {
> return getNextFocusManagerComponent2(backward,
> fauxFocus).displayObject as IFocusManagerComponent;
> }
> Must be rewritten as:
> public function getNextFocusManagerComponent(
> backward:Boolean = false):IFocusManagerComponent
> {
> const focusInfo:FocusInfo = getNextFocusManagerComponent2(backward,
> fauxFocus);
> return focusInfo ? focusInfo.displayObject as IFocusManagerComponent
> : null;
> }
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