private void detach_BorrowLends(BorrowLend entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
		private void attach_BorrowLends(BorrowLend entity)
		{
			this.SendPropertyChanging();
			entity.User = this;
		}
 partial void UpdateBorrowLend(BorrowLend instance);
 partial void DeleteBorrowLend(BorrowLend instance);
 partial void InsertBorrowLend(BorrowLend instance);