public void DeleteBookCopy(BookCopyEntity bookCopy) { if (bookCopy is null) { throw new ArgumentNullException(nameof(bookCopy)); } m_Context.BookCopies.Remove(bookCopy); }
public void AddBookCopy(BookCopyEntity bookCopy) { if (bookCopy is null) { throw new ArgumentNullException(nameof(bookCopy)); } m_Context.BookCopies.Add(bookCopy); }