On 11/27/16, 10:45 PM, "doug777" <[email protected]> wrote:
>I don't think the stack traces help as they only relate to the error >caused. >For example here is the trace for a DataGrid that uses a custom skin. > >TypeError: Error #1009: Cannot access a property or method of a null >object >reference. > at >spark.components::GridColumnHeaderGroup/getHeaderRendererAt()[/Users/justi >nmclean/Documents/ApacheFlex4.15/frameworks/projects/spark/src/spark/compo >nents/GridColumnHeaderGroup.as:921] > at >spark.components::GridColumnHeaderGroup/dispatchGridEvent()[/Users/justinm >clean/Documents/ApacheFlex4.15/frameworks/projects/spark/src/spark/compone >nts/GridColumnHeaderGroup.as:1266] > at >spark.components::GridColumnHeaderGroup/gchg_mouseDownDragUpHandler()[/Use >rs/justinmclean/Documents/ApacheFlex4.15/frameworks/projects/spark/src/spa >rk/components/GridColumnHeaderGroup.as:1112] > at >Function/<anonymous>()[/Users/justinmclean/Documents/ApacheFlex4.15/framew >orks/projects/spark/src/spark/utils/MouseEventUtil.as:104] Hmm. The above stack trace looks like https://issues.apache.org/jira/browse/FLEX-35028 > >This is caused by clicking in the header row that should contain the >header >data, but doesn't because after the dataProvider is filled, presumably the >skin can't update the display list. I guess this still doesn't make sense to me. If the skin can't update the display list, I would expect an error in that part of the code. Can you attach a simple test case the FLEX-35028? -Alex
