[FLEX-34190] Hover indicator shows on incorrect row when scrolled and CollectionChangeEvent is dispatched

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Apache Flex 4.11.0
• Component/s: Spark: DataGrid, Spark: Scroller
• Labels: datagrid gridclick
• Environment: Apache Flex 4.11 AIR 3.9, Desktop
• Assignee: Unassigned
• Reporter: Marcus Wilkinson
• Created: 26/Mar/14 13:02
• Updated: 26/Mar/14 13:05

Description

Steps to reproduce:

• Create and run the attached project.
• click on the "change something" button on one of the lower rows

Actual result:

• The hover indicator shows two or three rows higher than where the mouse is.

Expected result:

• The hover indicator does not change from the row under the mouse

Culprit seems to be in spark.components.Grid.as, the function updateHoverForDataProviderChange computes the hoverRowIndex to be one which ignores the current scroll position.