public async Task <IActionResult> OnPostAsyncc(string[] selectedCategories) { var newBook = new Book(); if (selectedCategories != null) { newBook.BookCategories = new List <BookCategory>(); foreach (var cat in selectedCategories) { var catToAdd = new BookCategory { CategoryID = int.Parse(cat) }; newBook.BookCategories.Add(catToAdd); } } if (await TryUpdateModelAsync <Book>( newBook, "Book", i => i.Title, i => i.Author, i => i.Price, i => i.PublishingDate, i => i.PublisherID)) { _context.Book.Add(newBook); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); } PopulateAssignedCategoryData(_context, newBook); return(Page()); }
// To protect from overposting attacks, enable the specific properties you want to bind to, for // more details, see https://aka.ms/RazorPagesCRUD. public async Task <IActionResult> OnPostAsync() { if (!ModelState.IsValid) { return(Page()); } _context.BookCategory.Add(BookCategory); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } Publisher = await _context.Publisher.FindAsync(id); if (Publisher != null) { _context.Publisher.Remove(Publisher); await _context.SaveChangesAsync(); } return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } Book = await _context.Book.FindAsync(id); if (Book != null) { _context.Book.Remove(Book); await _context.SaveChangesAsync(); } return(RedirectToPage("./Index")); }