partial void DeleteLoaiBD(LoaiBD instance);
 partial void UpdateLoaiBD(LoaiBD instance);
		private void detach_LoaiBDs(LoaiBD entity)
		{
			this.SendPropertyChanging();
			entity.DanhMuc = null;
		}
 partial void InsertLoaiBD(LoaiBD instance);
		private void attach_LoaiBDs(LoaiBD entity)
		{
			this.SendPropertyChanging();
			entity.DanhMuc = this;
		}