public async Task<IActionResult> OnGetAsync(int? id) { if (id == null) { return NotFound(); } Book = await _context.Book.FirstOrDefaultAsync(m => m.ID == id); if (Book == null) { return NotFound(); } ViewData["PublisherID"] = new SelectList(_context.Set<Publisher>(), "ID", "PublisherName"); return Page(); }
public IActionResult OnGet() { ViewData["PublisherID"] = new SelectList(_context.Set <Publisher>(), "ID", "PublisherName"); return(Page()); }