public void LoginPengungjung(string nomorKtp, string nomorTahanan, IOnLoginPengunjungFinishedListener listener)
        {
            connection = ConnectDB.ConnectingDB();


            try
            {
                connection.Open();
                MySqlCommand command = connection.CreateCommand();
                query = "INSERT INTO `jenguk` (`NoKtp_member`, `NoTahanan_napi`, `Date`) VALUES ('" + nomorKtp + "', '" + nomorTahanan + "', CURRENT_TIMESTAMP)";
                command.CommandText = query;
                command.ExecuteNonQuery();
                listener.onSuccessKirim();
            }
            catch (Exception e)

            {
                listener.onErrorKirim();
                Console.WriteLine("Error:" + e);
            }



            connection.Close();
        }