public ActionResult Create(tbl_books collection)
        {
            try
            {
                // TODO: Add insert logic here
                var li = context.tbl_user.ToList();
                ViewBag.UsersList = new SelectList(li, "user_id", "user_name");
                tbl_books book = new tbl_books
                {
                    book_author   = collection.book_author,
                    book_edition  = collection.book_edition,
                    book_name     = collection.book_name,
                    user_id       = collection.user_id,
                    book_price    = collection.book_price,
                    book_qunatity = collection.book_qunatity
                };
                context.tbl_books.Add(book);

                context.SaveChanges();
                return(RedirectToAction("Index"));
            }
            catch (Exception ex)
            {
                return(View());
            }
        }
 public ActionResult Edit(int id, tbl_books bookModel)
 {
     try
     {
         // TODO: Add update logic here
         var book = context.tbl_books.Where(b => b.book_id == id).FirstOrDefault();
         book.book_author   = bookModel.book_author;
         book.book_edition  = bookModel.book_edition;
         book.book_name     = bookModel.book_name;
         book.book_price    = bookModel.book_price;
         book.book_qunatity = bookModel.book_qunatity;
         book.user_id       = bookModel.user_id;
         context.SaveChanges();
         return(RedirectToAction("Index"));
     }
     catch
     {
         return(View());
     }
 }