public void Create(LessonLecturerGrid lessLec)
 {
     _db.JoinLessonLecturers.Add(new JoinLessonLecturer
     {
         lecturerId = lessLec.Lect.Id,
         lessonId = lessLec.Less.Id,
         typeId = lessLec.LessonType.Id,
         Time = lessLec.Time
     });
     _db.SaveChanges();
 }
 public void Update(LessonLecturerGrid lessLec)
 {
     JoinLessonLecturer lect = _db.JoinLessonLecturers.Find(lessLec.Id);
     lect.lecturerId = lessLec.Lect.Id;
     lect.lessonId = lessLec.Less.Id;
     lect.typeId = lessLec.LessonType.Id;
     lect.Time = lessLec.Time;
     _db.SaveChanges();
 }