public void addStudentStudierichting(StudentStudierichting studentstudierichting)
        {
            StudentStudierichtingMapper mapper = new StudentStudierichtingMapper(_connectionString);

            mapper.addStudentStudierichtingToDB(studentstudierichting);
        }
        public void adjustStudentStudierichting(StudentStudierichting studentstudierichting, int id)
        {
            StudentStudierichtingMapper mapper = new StudentStudierichtingMapper(_connectionString);

            mapper.AdjustStudentStudierichtingFromDB(studentstudierichting, id);
        }
        public List <StudentStudierichting> getStudentStudierichting()
        {
            StudentStudierichtingMapper mapper = new StudentStudierichtingMapper(_connectionString);

            return(mapper.getStudentStudierichtingFromDB());
        }