In my site I have applications that should only be given to certain people. I have tables that manage all the security and it works fine. I want to make an interface with all the applications and a checkbox next to each item. So say I want to edit USER_A's I select applications 1,2 and 3. In my ASPX.cs page, should I loop on each item and pass the ID to a stored procedure (one at a time), or create a string, pass that to the stored procedure and parse through that and add all new groups at once? Or is there a better way? Thanks.