Dear Friend,
You can give connection string like this:-
Data Source=computer-name;
Initial Catalog=abcd;
Persist Security Info=True;
User ID=sa;
Password=admin1234;
Pooling=False
You can give server computer name as data source,
database name as initial catalog,
you can give user ID and password for connecting to the database.
hope you understood.
with regards,
Sunil