Is there any way to have the data displayed in a group header different on the first occurrence of the header from subsequent occurrences within that same group?
I have the Repeat Header option checked, so the header appears on every page. I want the pages where it is a continuation (has been repeated because the option is on) to look different, e.g., the group's name cell should be "<name> (cont.)", where on the first page it appears it should be just "<name>". I can use an expression in a cell in the header, but I don't see any convenient function or other way to detect whether this is the first, or a subsequent, instance of the header.
I thought of using the RowNumber function, scoped to the header grouping, but this seems to return the row number of the bottom-most (last) detail row of the group - that is, the number of rows in the group - so that doesn't seem to help.
Have you found any solution to the issue in your post? I would like to do the same on a grouped table report and cannot seem to find the key.