protected void btnAddTitle_Click(object sender, EventArgs e)
        {
            AddBookTitleRequest request = new AddBookTitleRequest();

            request.ISBN  = txtBookISBN.Text;
            request.Title = txtBookTitle.Text;

            LibraryService service = ServiceFactory.CreateLibraryService();

            service.AddBookTitle(request);
            DisplayBooks();
        }
        public AddBookTitleResponse AddBookTitle(AddBookTitleRequest request)
        {
            AddBookTitleResponse response  = new AddBookTitleResponse();
            BookTitle            bookTitle = new BookTitle();

            bookTitle.ISBN  = request.ISBN;
            bookTitle.Title = request.Title;
            _bookTitleRepository.Add(bookTitle);
            _unitOfWork.Commit();
            response.Success = true;

            return(response);
        }