public async Task <IActionResult> OnPostDelete(int id)
{
var book = await _db.Book.FindAsync(id);
if (book == null)
{
return(NotFound());
}
_db.Book.Remove(book);
await _db.SaveChangesAsync();
return(RedirectToPage("Index"));
}
public async Task <IActionResult> OnPost()
{
if (ModelState.IsValid)
{
await _db.Book.AddAsync(book);
await _db.SaveChangesAsync();
return(RedirectToPage("Index"));
}
else
{
return(Page());
}
}
public async Task <IActionResult> OnPost()
{
if (ModelState.IsValid)
{
var DBComingBook = await _db.Book.FindAsync(book.Id);
DBComingBook.BookName = book.BookName;
DBComingBook.Author = book.Author;
DBComingBook.ISBN = book.ISBN;
await _db.SaveChangesAsync();
return(RedirectToPage("Index"));
}
return(RedirectToPage());
}
public T Edit(T entity, int key)
{
if (entity == null)
{
return(null);
}
var existingObject = _context.Set <T>().Find(key);
if (existingObject != null)
{
_context.Entry(existingObject).CurrentValues.SetValues(entity);
_context.SaveChangesAsync();
}
return(existingObject);
}