partial void DeleteTinTuc(TinTuc instance);
 partial void UpdateTinTuc(TinTuc instance);
 private void detach_TinTucs(TinTuc entity)
 {
     this.SendPropertyChanging();
     entity.TheLoaiTinTuc = null;
 }
 partial void InsertTinTuc(TinTuc instance);
 private void attach_TinTucs(TinTuc entity)
 {
     this.SendPropertyChanging();
     entity.TheLoaiTinTuc = this;
 }