// 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(int?id)
{
if (id == null)
{
return(NotFound());
}
var bookToUpdate = await _context.Books.FindAsync(id);
if (bookToUpdate == null)
{
return(NotFound());
}
if (await TryUpdateModelAsync <Book>(
bookToUpdate,
"book", // Prefix for form value.
s => s.Title, s => s.TotalPages, s => s.Rating, s => s.ISBN,
s => s.DatePublished, s => s.PublisherID, s => s.AuthorID, s => s.GenreID))
{
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
PopulatePublisherDropDownList(_context, bookToUpdate.PublisherID);
PopulateAuthorDropDownList(_context, bookToUpdate.AuthorID);
PopulateGenreDropDownList(_context, bookToUpdate.GenreID);
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.Attach(Genre).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!GenreExists(Genre.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, see https://aka.ms/RazorPagesCRUD
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Publishers.Add(Publisher);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
public async Task <IActionResult> OnPostAsync(int?id)
{
if (id == null)
{
return(NotFound());
}
Genre = await _context.Genres.FindAsync(id);
if (Genre != null)
{
_context.Genres.Remove(Genre);
await _context.SaveChangesAsync();
}
return(RedirectToPage("./Index"));
}
// To protect from overposting attacks, see https://aka.ms/RazorPagesCRUD
public async Task <IActionResult> OnPostAsync()
{
var emptyBook = new Book();
if (await TryUpdateModelAsync <Book>(
emptyBook,
"book",
s => s.Title, s => s.TotalPages, s => s.Rating, s => s.ISBN, s => s.DatePublished, s => s.PublisherID, s => s.AuthorID, s => s.GenreID))
{
_context.Books.Add(emptyBook);
await _context.SaveChangesAsync();
return(RedirectToPage("./Index"));
}
PopulatePublisherDropDownList(_context, emptyBook.PublisherID);
PopulateAuthorDropDownList(_context, emptyBook.AuthorID);
PopulateGenreDropDownList(_context, emptyBook.GenreID);
return(Page());
}