/// <summary>
        /// Visszadja a adatbázisban lévő Kuldeseket
        /// </summary>
        /// <returns>Visszatér a Kuldesek adatokal</returns>
        public List <Kuldes> getKuldesFromDatabaseTable()
        {
            List <Kuldes>   kuldesek   = new List <Kuldes>();
            MySqlConnection connection = new MySqlConnection(connectionString);

            try
            {
                connection.Open();
                string          query = Kuldes.getSQLCommandGetAllRecord();
                MySqlCommand    cmd   = new MySqlCommand(query, connection);
                MySqlDataReader dr;
                dr = cmd.ExecuteReader();
                while (dr.Read())
                {
                    string kikuldes      = dr["Kikuldes"].ToString();
                    string visszaerkezes = dr["Viszaerkezes"].ToString();

                    bool goodResult = false;
                    int  sid        = -1;
                    goodResult = int.TryParse(dr["sid"].ToString(), out sid);
                    if (goodResult)
                    {
                        int kid = -1;
                        goodResult = int.TryParse(dr["kid"].ToString(), out kid);
                        if (goodResult)
                        {
                            int heid = -1;
                            goodResult = int.TryParse(dr["heid"].ToString(), out heid);
                            if (goodResult)
                            {
                                int teid = -1;
                                goodResult = int.TryParse(dr["teid"].ToString(), out teid);
                                if (goodResult)
                                {
                                    int did = -1;
                                    goodResult = int.TryParse(dr["did"].ToString(), out did);
                                    if (goodResult)
                                    {
                                        Kuldes ku = new Kuldes(sid, kid, heid, teid, did, kikuldes, visszaerkezes);
                                        kuldesek.Add(ku);
                                    }
                                }
                            }
                        }
                    }
                }
                connection.Close();
            }
            catch (Exception e)
            {
                connection.Close();
                Debug.WriteLine(e.Message);
                throw new RepositoryException("kuldes beolvasása az adatbázisból nem sikerült!");
            }
            return(kuldesek);
        }
        /// <summary>
        /// Teszt adatok törlése
        /// </summary>
        public void deleteDataFromTermekTable()
        {
            MySqlConnection connection = new MySqlConnection(connectionString);

            try
            {
                connection.Open();
                string       query = Kuldes.getSQLCommandDeleteAllRecord();
                MySqlCommand cmd   = new MySqlCommand(query, connection);
                cmd.ExecuteNonQuery();
            }
            catch (Exception e)
            {
                connection.Close();
                Debug.WriteLine(e.Message);
                throw new RepositoryException("Tesztadatok törlése sikertelen.");
            }
        }