public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Attach(Book).State = EntityState.Modified;
try
{
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!BookExists(Book.ID))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToPage("../Index"));
}
public async Task <IActionResult> OnPostAsync()
{
if (!ModelState.IsValid)
{
return(Page());
}
_context.Book.Add(Book);
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"));
}
