private void detach_Waitlists(Waitlist entity)
 {
     this.SendPropertyChanging();
     entity.Student = null;
 }
 private void attach_Waitlists(Waitlist entity)
 {
     this.SendPropertyChanging();
     entity.Student = this;
 }
 partial void UpdateWaitlist(Waitlist instance);
 partial void DeleteWaitlist(Waitlist instance);
 partial void InsertWaitlist(Waitlist instance);