public static void updateRound(ROUND round) { string constr = WebConfigurationManager.ConnectionStrings["myConnectionString"].ToString(); using (SqlConnection con = new SqlConnection(constr)) { using (SqlCommand cmd = new SqlCommand("UPDATE [ROUND] SET [from] = @from1, [to] = @to1 WHERE [round] = 1")) { cmd.CommandType = CommandType.Text; cmd.Parameters.AddWithValue("@from1", round.from1); cmd.Parameters.AddWithValue("@to1", round.to1); cmd.Connection = con; con.Open(); cmd.ExecuteNonQuery(); con.Close(); } using (SqlCommand cmd = new SqlCommand("UPDATE [ROUND] SET [from] = @from2, [to] = @to2 WHERE [round] = 2")) { cmd.CommandType = CommandType.Text; cmd.Parameters.AddWithValue("@from2", round.from2); cmd.Parameters.AddWithValue("@to2", round.to2); cmd.Connection = con; con.Open(); cmd.ExecuteNonQuery(); con.Close(); } using (SqlCommand cmd = new SqlCommand("UPDATE [ROUND] SET [from] = @from3, [to] = @to3 WHERE [round] = 3")) { cmd.CommandType = CommandType.Text; cmd.Parameters.AddWithValue("@from3", round.from3); cmd.Parameters.AddWithValue("@to3", round.to3); cmd.Connection = con; con.Open(); cmd.ExecuteNonQuery(); con.Close(); } } }