Edit data in Gridview

I'm new to ASP.Net - been a VB6 programmer all my life. Hoping someone can help me out. I'm using VS 2005. I have a Gridview that's bound to a datatable loaded in code from a SQL datasource. I need to have a set of 3 radio buttons that are editable and bound to one field and a textbox bound to another field. So far I haven't seen how to do that (radio buttons that is). I would also like each record to be automatically set to edit mode rather than having to click edit, update the fields and then click Update. This is for a manager to go through and review and authorize or deny expenses (clicking radio buttons), so efficiency is key. Thanks for any and all help!

Paul