I am using vs2005 and visual basic. I have an unbound gridview which I fill from user inputs. It is 2 columns(zipcode and attendednumber). It is dynamic in the sense that it will vary from user to user as to how many rows it will contain. There will be a maximum of 25 rows. I have a table in a database (using sql 2005 express), which is set up for the attendeeID and 25 zipcode fields. I can collect all data ok but not sure how to proceed in writing to the table. All zipcode and attendeenumber fields except the first one, are set up to accept nulls. Should I do a dataset, create dataadapter, or parameterized query? Could someone point me in the right direction please?