[FLEX-35280] Spark DataGrid getHeaderIndexAt() and getColumnIndexAt ignore y value when returning column index

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Apache Flex 4.14.1
• Fix Version/s: Apache Flex 4.15.0
• Component/s: Spark: DataGrid
• Assignee: Mihai Chira
• Reporter: Mihai Chira
• Created: 10/Mar/17 14:39
• Updated: 12/Apr/17 11:32

Description

GridColumnHeaderGroup.getHeaderIndexAt() -> GridHeaderViewLayout.getHeaderIndexAt() -> GridDimensionsView.getColumnIndexAt() -> GridDimensions.getColumnIndexAt(). In the last step of this chain of function calls the y argument is simply ignored, creating erroneous results.

Note that it looks like the initial intention of the developers was not to ignore the y argument. The function description supports this: Returns the index of the column at the specified coordinates. If the coordinates lie in a gap area, the index returned is the previous column. Returns -1 if the coordinates are out of bounds.