public static List <FreelanceTask> ReadDb(int count)
        {
            string               connectionString = "server=vseuznaem.su;user id=root;password=afnfkbnb1987;database=freelance;characterset=utf8";
            MySqlConnection      conn;
            MySqlCommand         command;
            List <FreelanceTask> list = new List <FreelanceTask>();

            try
            {
                conn = new MySqlConnection(connectionString);
            }
            catch (Exception e)
            {
                return(null);
            }

            conn.Open();

            string query = $"SELECT id, title, price, link, description, deadline, prepaiment, payment, publishdate, employer FROM task LIMIT {count}";

            try
            {
                command = new MySqlCommand(query, conn);
            }
            catch
            {
                return(null);
            }

            MySqlDataReader reader = command.ExecuteReader();

            while (reader.Read())
            {
                int    id    = int.Parse(reader[0].ToString());
                string title = reader[1].ToString();
                string price = reader[2].ToString();
                string link  = reader[3].ToString();

                FreelanceTask fl = new FreelanceTask(id, title, price, link);

                fl.Description = (string)reader[4];
                fl.Deadline    = (string)reader[5];
                fl.Prepayment  = (string)reader[6];
                fl.Payment     = (string)reader[7];
                fl.PublishDate = (string)reader[8];
                fl.Employer    = (string)reader[9];

                list.Add(fl);
            }

            conn.Close();

            return(list);
        }
        public static bool WriteDB(FreelanceTask fl)
        {
            string          connectionString = "server=vseuznaem.su;user id=root;password=afnfkbnb1987;database=freelance;characterset=utf8";
            MySqlConnection conn;
            MySqlCommand    command;

            try
            {
                conn = new MySqlConnection(connectionString);
            }
            catch (Exception e)
            {
                return(false);
            }

            conn.Open();

            string query = $"INSERT INTO task (id, title, price, link, description, deadline, prepaiment, payment, publishdate, employer)" +
                           $"VALUES({fl.Id}, '{fl.Title}', '{fl.Price}', '{fl.Link}', '{fl.Description}', '{fl.Deadline}', '{fl.Prepayment}', '{fl.Payment}', '{fl.PublishDate}', '{fl.Employer}')";

            try
            {
                command = new MySqlCommand(query, conn);
            }
            catch
            {
                return(false);
            }

            int result = command.ExecuteNonQuery();

            conn.Close();

            if (result > 0)
            {
                return(true);
            }

            return(false);
        }