public Dictionary<string, Curs> GetCurses()
        {
            Dictionary<string, Curs> curses = new Dictionary<string,Curs>();

              using (SqlConnection Connection = GetConnection())
              {
            Connection.Open();
            SqlCommand command = new SqlCommand("SELECT * FROM Curs", Connection);

            SqlDataReader dataReader = command.ExecuteReader();
            while (dataReader.Read())
            {

              Curs curs = new Curs()
              {
            CursID = (int)dataReader["cursID"],
            Name = (string)dataReader["name"],
            ModuleID = (int)dataReader["modulID"],
            CreditPoints = (int)dataReader["creditPoints"],
            Description = dataReader["description"] == DBNull.Value ? string.Empty : (string)dataReader["description"]
              };

              curses.Add(curs.Name, curs);
            }
              }

              return curses;
        }
        public List<Curs> GetCursesByModul(int modulID)
        {
            List<Curs> curses = new List< Curs>();

              using (SqlConnection Connection = GetConnection())
              {
            Connection.Open();
            SqlCommand command = new SqlCommand("SELECT * FROM Curs WHERE modulID = @modulID", Connection);
            command.Parameters.AddWithValue("@modulID", modulID);

            SqlDataReader dataReader = command.ExecuteReader();
            while (dataReader.Read())
            {

              Curs curs = new Curs()
              {
            CursID = (int)dataReader["cursID"],
            Name = (string)dataReader["name"],
            ModuleID = (int)dataReader["modulID"],
            CreditPoints = (int)dataReader["creditPoints"],
            Description = dataReader["description"] == DBNull.Value ? string.Empty : (string)dataReader["description"]
              };

              curses.Add( curs);
            }
              }

              return curses;
        }