After the grid is filled with the data, if you modify the template, it will not have any effect, since it is a template, and all the rows have already been generated from the previous template. So what you need to do is to modify all the actual DataRows themselves, one by one.
A more efficient way would be to set the ReadOnly property on the GridControl itself, so that when you want to change it, you only have this property to set back once.
Imported from legacy forums. Posted by André (had 2971 views)