// Add Book book to shopcart and to cartJSON
public ActionResult AddToCart()
{
ShoppingCart tempCart = new ShoppingCart();
Book book = new Book(Request.Form["title"], Request.Form["author"], Convert.ToDecimal(Request.Form["price"]), Convert.ToInt32(Request.Form["instock"]));
// Add book to cart
ViewBag.AddedBookList = tempCart.AddBookToCart(book);
if (System.Web.HttpContext.Current.Session["booksAddedToCart"] == null)
{
// Empty. Store item data into json-string
System.Web.HttpContext.Current.Session["booksAddedToCart"] = tempCart.StoreCartItemsToJsonSession(tempCart.Shopcart);
}
else
{
// Not empty. Copy content to shopcart, then add to cart, then store data back into json-string
tempCart.Shopcart = tempCart.GetCartItemsFromJsonString(System.Web.HttpContext.Current.Session["booksAddedToCart"].ToString());
// Add book to cart
tempCart.AddBookToCart(book);
// Store data back into json-string to session
System.Web.HttpContext.Current.Session["booksAddedToCart"] = tempCart.StoreCartItemsToJsonSession(tempCart.Shopcart);
}
// Send data to View
ViewBag.Confirm = book.Title + " har lagts till i kundvagnen.";
return(View("Index"));
}