C# (CSharp) BorrowBook_DbContext.SaveChanges 예제들

예제 #1

        public bool DecrementBooksNum(int book_id)
        {
            Books book = _context.Books.SingleOrDefault(bo => bo.ID == book_id);

            if (book != null)
            {
                if (book.BookNo > 0)
                {
                    book.BookNo = book.BookNo - 1;
                }
                else
                {
                    return(false);
                }
            }
            _context.SaveChanges();

            return(true);
        }

예제 #2

 public void Save()
 {
     _context.SaveChanges();
 }