// To protect from overposting attacks, please 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(Car).State = EntityState.Modified; try { await _context.SaveChangesAsync(); } catch (DbUpdateConcurrencyException) { if (!CarExists(Car.Id)) { return(NotFound()); } else { throw; } } return(RedirectToPage("./Index")); }