I want to be able to change the font and background color of a group header when it is expanded. I have tried the GroupByColumnHeaderAppearance but it doesn't seem to do anything.
Any help would be appreciated.
Hi,
I'm not sure I understand what you mean. A group header is not expandable, it's a header that contains other column headers.
GroupByColumnHeaderAppearance applies to the GroupByButton of the column in the GroupByBox. So it's basically a representation of the column header.
It sounds like you are trying to color a GroupByRow. So the way to do this would be in the InitializeGroupByRow event and set the Appearance property on the row itself.
Please refer to this image.Screenshot