[FLEX-33054] Cursor Seek in HierarchicalCollectionViewCursor operates on wrong child level

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 4.1 (Release), Apache Flex 4.12.1
• Fix Version/s: Apache Flex 4.14.0
• Component/s: ADG:Grouping/TDG
• Environment: Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Mihai Chira
• Reporter: Adobe JIRA
• Created: 19/Dec/11 09:15
• Updated: 21/Aug/14 09:29
• Resolved: 21/Aug/14 09:29

Description

Steps to reproduce:
1. Run attached MXML code
2. Scroll to bottom
3. Select "Item 3"
4. Press "Delete" button

Actual Results:
Error: Bookmark no longer valid.
at ListCollectionViewCursor/seek()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:2417]
at mx.collections::HierarchicalCollectionViewCursor/collectionChangeHandler()[E:\dev\4.x\frameworks\projects\datavisualization\src\mx\collections\HierarchicalCollectionViewCursor.as:1278]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.collections::HierarchicalCollectionView/nestedCollectionChangeHandler()[E:\dev\4.x\frameworks\projects\datavisualization\src\mx\collections\HierarchicalCollectionView.as:1589]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.collections::ListCollectionView/dispatchEvent()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:1024]
at mx.collections::ListCollectionView/removeItemsFromView()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:1681]
at mx.collections::ListCollectionView/listChangeHandler()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:1292]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.collections::ArrayList/internalDispatchEvent()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ArrayList.as:673]
at mx.collections::ArrayList/removeItemAt()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ArrayList.as:491]
at mx.collections::ListCollectionView/removeItemAt()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:762]
at ListCollectionViewCursor/remove()[E:\dev\4.x\frameworks\projects\framework\src\mx\collections\ListCollectionView.as:2330]
at mx.collections::HierarchicalCollectionView/removeChild()[E:\dev\4.x\frameworks\projects\datavisualization\src\mx\collections\HierarchicalCollectionView.as:731]
at HierarchicalDataException/deleteItem()[C:\Users\dcollie\Documents\Code\Eclipse\ubs-fb46\HierarchicalDataException\src\HierarchicalDataException.mxml:33]
at HierarchicalDataException/___HierarchicalDataException_Button1_click()[C:\Users\dcollie\Documents\Code\Eclipse\ubs-fb46\HierarchicalDataException\src\HierarchicalDataException.mxml:56

Expected Results:
Item should delete without errors and the ADG should update to reflect this.

Workaround (if any):
None found yet.

Issue Links

• is related to: FLEX-34119 mx.collections.HierarchicalCollectionViewCursor causes CursorError RTE from ListCollectionView when the underlying collections change