CafeProject.GarsonEkrani.DataGetir C# (CSharp) Метод

        public void DataGetir()
        {
            SqlCommand cm = new SqlCommand("SP_MasaBilgler", db.dbConnect());
            cm.CommandType = CommandType.StoredProcedure;
            cm.Parameters.Add("@id", SqlDbType.Int).Value = gelenID;
            db.dbConnect();
            cm.ExecuteNonQuery();

            SqlDataReader rd = cm.ExecuteReader();
            DataTable dt = new DataTable();
            dt.Load(rd);
            dataGridView1.DataSource = dt;
            db.dbClose();

            Thread.Sleep(1000);
        }