When using column grouping with the advanced data grid, is it
possible to ONLY show the AdvancedDataGridColumnGroup headerText
and not have the extra row for the AdvancedDataGridColumn
headerText? For instance, if a have a set of 3 columns with a
spanned group headerText of "manage", and the columns have buttons
with the text "edit", "move" and "delete", can I just omit the
secondary headings since the "edit|move|delete" text is there on
the buttons and redundant as a column heading?