string Source = "aonde o banco esta";
        string Banco = "qual banco";
        string User = "nome do usuario";
        string Senha = "senha do usuario";

        SqlConnection NewConexao = new SqlConnection("Data Source="+ Source
            +"; Initial Catalog="+ Banco
            +"; User Id="+User
            +"; Password="+Senha
            +"; Integrated Security=false");

        NewConexao.Open();