public ActionResult Create()
{
BookModel bkmodel = new BookModel();
bkmodel.BookName = "C# Book";
ViewBag.bkCategory = new SelectList(db.GetBookCategory(), "CategoryBookName", "CategoryBookName");
ViewBag.bkAuthor = new SelectList(dbAuth.GetAuthors(), "AuthorId", "AuthorName");
return(View(bkmodel));
}