public ActionResult Edit(ModelAuthor model, int id) { if (ModelState.IsValid) { Author FindAuthor = singleton.GetAuthors.BackAuthor(id);; FindAuthor.AuthorEdit(model.Name, model.DateOfBirth, model.DateOfDeath); ViewBag.Author = singleton.GetAuthors; Checking_Author(); return(RedirectToAction("Show_Table")); } else { Author FindAuthor = singleton.GetAuthors.BackAuthor(id); ViewBag.Author = FindAuthor; return(View()); } }