int a=1;

                command.CommandText = "SELECT Count(Nazwa_D) as liczba FROM druzyny ";
                MySqlDataReader reader = command.ExecuteReader();
                reader.Read();
                int liczba = Int32.Parse(reader.GetString(reader.GetOrdinal("liczba")));
                reader.Close();

                for (a = 1; a < liczba+1; a++)