public async Task <IActionResult> OnGetAsync(int?id) { if (id == null) { return(NotFound()); } Book = await _context.Book .Include(b => b.Publisher) .Include(b => b.BookCategories).ThenInclude(b => b.Category) .AsNoTracking() .FirstOrDefaultAsync(m => m.ID == id); if (Book == null) { return(NotFound()); } //apelam PopulateAssignedCategoryData pentru o obtine informatiile necesare checkbox- //urilor folosind clasa AssignedCategoryData PopulateAssignedCategoryData(_context, Book); ViewData["PublisherID"] = new SelectList(_context.Set <Publisher>(), "ID", "PublisherName"); return(Page()); }
public IActionResult OnGet() { ViewData["PublisherID"] = new SelectList(_context.Set <Publisher>(), "ID", "PublisherName"); var book = new Book(); book.BookCategories = new List <BookCategory>(); PopulateAssignedCategoryData(_context, book); return(Page()); }