public FrmWeekClassSchedule()
 {
     InitializeComponent();
     _professorDatalayer = new ProfessorDatalayer();
     _classroomDatalayer = new ClassroomDatalayer();
     _scheduleDatalayer = new ScheduleDatalayer();
 }
 public FrmClassroom()
 {
     InitializeComponent();
     _classroomDatalayer = new ClassroomDatalayer();
 }