[FLEX-32529] Drag-Drop a line when lockedRowCount is large throws RTE.

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Later
• Affects Version/s: Adobe Flex SDK 3.0 (Release)
• Component/s: ADG:Display
• Environment: Affected OS(s): Windows; Affected OS(s): Windows XP; Language Found: Japanese
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 14/Jun/09 20:57
• Updated: 29/Jun/11 22:58
• Resolved: 15/Mar/11 02:35

Description

Steps to reproduce:
1. lockedRowCount is set to 20.
2. run the swf file.
3. drag a line and drop it.

Actual Results:
TypeError: Error #1010: 条件は未定義であり、プロパティがありません。(undefined item, there' s no property.)
at mx.controls.listClasses::AdvancedListBase/collectionChangeHandler()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\listClasses\AdvancedListBase.as:7537]
at mx.controls::AdvancedDataGridBaseEx/collectionChangeHandler()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\AdvancedDataGridBaseEx.as:5378]
at mx.controls::AdvancedDataGrid/collectionChangeHandler()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\AdvancedDataGrid.as:5972]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.collections::ListCollectionView/dispatchEvent()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:833]
at mx.collections::ListCollectionView/removeItemsFromView()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:1399]
at mx.collections::ListCollectionView/listChangeHandler()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:1059]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.collections::ArrayList/internalDispatchEvent()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ArrayList.as:510]
at mx.collections::ArrayList/removeItemAt()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ArrayList.as:363]
at mx.collections::ListCollectionView/removeItemAt()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:601]
at ListCollectionViewCursor/remove()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:1973]
at mx.controls.listClasses::AdvancedListBase/dragDropHandler()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\listClasses\AdvancedListBase.as:8416]
at mx.controls::AdvancedDataGrid/dragDropHandler()[C:\work\flex\dmv_automation\projects\datavisualisation\src\mx\controls\AdvancedDataGrid.as:2555]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\core\UIComponent.as:9308]
at mx.managers.dragClasses::DragProxy/_dispatchDragEvent()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\managers\dragClasses\DragProxy.as:349]
at mx.managers.dragClasses::DragProxy/mouseUpHandler()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\managers\dragClasses\DragProxy.as:584]

Expected Results:
No RTE.

Workaround (if any):
AdvancedListBase.as→collectionChangeHandler()→if (listItems.length && listItems[lockedRowCount].length)
listItems[lockedRowCount] is null.