title: Visual Studio adds columns to DataGridView after running program
body: <p>I have a datagridview that is linked to a three columns in the database, and it's only displaying them (no editing). When I run the program in debug, and exit, when I return to the form in Visual Studio, it has my three columns, plus all the columns in the table it's linked to. If I don't remove these, the next time I run the program, they show up on the form. If I remove them, I have to do it every time I run the program.</p>
  
  <p>Any ideas on how to fix this?</p>