public static bool AddRegistration(Registration registration)
        {
            SqlConnection connection      = TechSupportDB.GetConnection();
            string        insertStatement =
                "INSERT Registrations " +
                "(CustomerID, ProductCode, RegistrationDate) " +
                "VALUES (@CustomerID, @ProductCode, @RegistrationDate)";
            SqlCommand insertCommand =
                new SqlCommand(insertStatement, connection);


            insertCommand.Parameters.AddWithValue(
                "@CustomerID", registration.CustomerID);

            insertCommand.Parameters.AddWithValue(
                "@ProductCode", registration.ProductCode);
            insertCommand.Parameters.AddWithValue(
                "@RegistrationDate", registration.RegistrationDate);
            try
            {
                connection.Open();
                int count = insertCommand.ExecuteNonQuery();
                if (count > 0)
                {
                    return(true);
                }
                else
                {
                    return(false);
                }
            }
            catch (SqlException)
            {
                return(false);
            }
            finally
            {
                connection.Close();
            }
        }