If I have a TAdvColumnGrid with, for example, 7 columns, and in code, I call:
grid.HideColumn( 6 ;
If I then attempt this:
s := grid.ColumnHeaders[6];
An exception is thrown.
If I add a column header for a nonexistent eighth column, then there is no exception thrown.
Sorry, the missing right parenthesis is the fault of my typing here. The actual code has no such failing.
grid.ColumnHeaders offers access to column header text of visible columns only;
If you would want access to the column header of non visible columns, I recommend to use
grid.AllCells[6,0] instead