private GestAcaLibDAL() : base("DBConnectionString")
 {
     absenceDAO      = new AbscenceDAOImp(this);
     courseDAO       = new CourseDAOImp(this);
     enrollmentDAO   = new EnrollmentDAOImp(this);
     officeDAO       = new OfficeDAOImp(this);
     personDAO       = new PersonDAOImp(this);
     studentDAO      = new StudentDAOImp(this);
     taughtCourseDAO = new TaughtCourseDAOImp(this);
     teacherDAO      = new TeacherDAOImp(this);
 }
        private GestAcaDAL() : base("DBConnectionString")
        {
            officeDAO       = new OfficeDAOImp(this);
            enrollmentDAO   = new EnrollmentDAOImp(this);
            courseDAO       = new CourseDAOImp(this);
            studentDAO      = new StudentDAOImp(this);
            personDAO       = new PersonDAOImp(this);
            absenceDAO      = new AbsenceDAOImp(this);
            teacherDAO      = new TeacherDAOImp(this);
            taughtcourseDAO = new TaughtCourseDAOImp(this);


            Database.Initialize(true);
        }