string connstring = string.Format("Data Source={0},{1};Initial Catalog={2};User ID={3};Password={4};Application Name={5};Connect Timeout=120", IP, Port, database, Username, Password, InstanceID);

               settings = new ConnectionStringSettings("sqlServer", connstring, "System.Data.SqlClient");


                using (data = new SwitchDataDataContext(settings.ConnectionString))
                {}