starting database in Visual Studio and connection string

Question

Hello there

I'm learning c# and enjoy it, but still have a looong way to go;o)

I have a .bak file that I have recovered in MS SQL SERVER Man. studio and now want to connect to it within VS 2010 (I have installed SP1)
How do I do that?
And secondly, do I need to set up a connection string, and how is that done?

Would appeciate any direction, since I stuck:o(

Kind Regards
D