I've read through the many posts on grid use and business objects.  I've succesfully setup Dev Express grid control to work with my BO and save data.  I will use sparingly in my projects, but there are going to be times when I really want to use a grid control.  Can anyone point this beginning SF user in the proper direction on how to best connect my grid's validation to using the SF business rules on required fields?  Any advice would be much appreciated.