public ActionResult AddItemQuantity()
{
string rawId = Request.QueryString["ProductId"];
int productId;
if (!String.IsNullOrEmpty(rawId) && int.TryParse(rawId, out productId))
{
using (ShoppingCartActions usersShoppingCart = new ShoppingCartActions())
{
String cartId = usersShoppingCart.GetCartId();
var allItems = usersShoppingCart.GetCartItems();
int currentQuantity = 0;
foreach (var item in allItems)
{
if (Convert.ToInt16(rawId) == item.ProductId)
{
currentQuantity = item.Quantity;
}
}
currentQuantity += 1;
usersShoppingCart.UpdateItem(cartId, Convert.ToInt16(rawId), currentQuantity);
}
}
else
{
Debug.Fail("ERROR : We should never get to /ShoppingCart/AddItemQuantity without a ProductId.");
throw new Exception("ERROR : It is illegal to load /ShoppingCart/AddItemQuantity without setting a ProductId.");
}
return(RedirectToAction("Index"));
}