public RedirectToActionResult RemoveFromCurrentCart(int productId,
string returnUrl)
{
Product product = repository.Products
.FirstOrDefault(p => p.Id == productId);
if (product != null)
{
CurrentCart currentCart = GetCurrentCart();
currentCart.RemoveLine(product);
SaveCurrentCart(currentCart);
}
return(RedirectToAction("Index", new { returnUrl }));
}