if u are looking for this on selectedindexchanged of gridview1 write code below this.textbox1.text = GridView1.SelectedRow.Cells[1].Text

Guffa, You are correct. I am an idiot. I have fixed that small oversight, and am hopeful it will be plain(ish) sailing from here on in. Thanks very much for your help!

Hi Colin, Thanks for responding. I should have written in my initial post that I'd tried not passing a username or password, but was getting the following error: No overload for method 'Connect' takes '1' arguments(CS1501) As such, I thought that the Connect Method forced me to put in a username and password, even if they shouldn't be required.