public bool InsertLecturer(Lecturer _lecturer)
 {
     LecturerHandler myHandler = new LecturerHandler(); return myHandler.NewLecturer(_lecturer);
 }
 public Lecturer GetLecturer(string User_Id)
 {
     LecturerHandler myHandler = new LecturerHandler(); return myHandler.GetLecturer(User_Id);
 }
 public Lecturer GetLecturer_StuffNumber(string StaffNumber)
 {
     LecturerHandler myHandler = new LecturerHandler(); return myHandler.GetLecturer_StaffNumber(StaffNumber);
 }
 public List<Lecturer> GetAllLecturers()
 {
     LecturerHandler myHandler = new LecturerHandler(); return myHandler.GetAllLecturers();
 }