public bool isValidLogin(string username, string password)
        {
            // Define the Select statement.
            string selectSQL = "SELECT ('select count (*) FROM user WHERE username ='" + username + "' AND password ='" + password + "' LIMIT 1)";

            OdbcCommand SQL_Command = new OdbcCommand(SQL_String, m_databaseConnection);

            SQL_Command.ExecuteNonQuery();
        }