I have a Windows form with an mmDataGridView object. I managed to get the DefaultView to work but I'm not sure what to do about changing the sort orders. I would like to keep the functionality of letting the users click on the header of the column but, as an example, when they click on the header of the Last Name, I would like the sort to use my DataView ordered by lastname, firstname and middlename. Do I need to trap this in the gridview's sorting event and set the DataView there?