C# (CSharp) BookShopContext.BulkDelete примеры использования

Пример #1

        public static int RemoveBooks(BookShopContext context)
        {
            var booksToDelete = context
                                .Books
                                .Where(b => b.Copies < 4200);

            int numberOfBooks = booksToDelete.Count();

            context.BulkDelete(booksToDelete);

            return(numberOfBooks);
        }

Пример #2

        public static int RemoveBooks(BookShopContext context)
        {
            var books = context
                        .Books
                        .Where(b => b.Copies < 4200)
                        .ToArray();

            var count = books.Length;

            context.BulkDelete(books);
            context.SaveChanges();

            return(count);
        }