partial void DeleteSemester_Year(Semester_Year instance);
partial void UpdateSemester_Year(Semester_Year instance);
private void detach_Semester_Years(Semester_Year entity) { this.SendPropertyChanging(); entity.Semester = null; }
partial void InsertSemester_Year(Semester_Year instance);
private void attach_Semester_Years(Semester_Year entity) { this.SendPropertyChanging(); entity.Semester = this; }