CODEWITHSUNDEEP
asp.net-mvc
Sheil
Sheil

Reputation: 5

ReturnUrl has no value, ASP.Net MVC

I've faced some problem recently and couldn't find the solution. I'm working on SportsStore from Adam Freeman's book Pro MVC 4. Look at this please:

I have a View called Index:

@model WebUI.Models.CartIndexViewModel
.
.
.
<p align="center" class="actionButtons">
    <a href="@Model.ReturnUrl">Kontynuuj zakupy</a>
</p>

CartController:

{
    public class CartController : Controller
    {
        private IProductRepository repository;

        public CartController(IProductRepository repo)
        {
            repository = repo;
        }

        public ViewResult Index(string returnUrl)
        {
            return View(new CartIndexViewModel
            {
                Cart = GetCart(),
                ReturnUrl = returnUrl
            });
        }

        public RedirectToRouteResult AddToCart(int productID, string returnUrl)
        {
            Product product = repository.Products.FirstOrDefault(p => p.ProductID == productID);
            if (product != null)
            {
                GetCart().AddItem(product, 1);
            }
            return RedirectToAction("Index", new { url = returnUrl });
        }

        public RedirectToRouteResult RemoveFromCart(int productId, string returnUrl)
        {
            Product product = repository.Products.FirstOrDefault(p => p.ProductID == productId);
            if (product != null)
            {
                GetCart().RemoveLine(product);
            }
            return RedirectToAction("Index", new { url = returnUrl });
        }

        private Cart GetCart()
        {
            Cart cart = (Cart)Session["Cart"];
            if (cart == null)
            {
                cart = new Cart();
                Session["Cart"] = cart;
            }
            return cart;
        }

    }
}

ProductSummary View:

@model Domain.Entities.Product

<div class="item">
    <h3>@Model.Name</h3>
    @Model.Description
     @using (Html.BeginForm("AddToCart", "Cart"))
    {
        @Html.HiddenFor(x => x.ProductID)
        @Html.Hidden("returnUrl", Request.Url.PathAndQuery)
        <input type ="submit" value="+ Dodaj do koszyka"/>
    }
    <h4>@Model.Price.ToString("c")</h4>
</div>

and CartIndexModelView:

public class CartIndexViewModel
{
    public Cart Cart { get; set; }
    public string ReturnUrl { get; set; }
}

And my problem is actually that my <a href="@Model.ReturnUrl">Kontynuuj zakupy</a> returns empty <a>KontunuujZakupy</a> Html, which I guess means that @Model.ReturnUrl doesn't get any value at all. I couldn't figure out why because i am begginer, would You mind to give me a clue about that? Thanks. //edit "Kontynuuj zakupy" means Continue Shopping :)

Upvotes: 0

Views: 188

Answers (2)

Panda Zhang
Panda Zhang

Reputation: 483

you can simply change the last line of your AddToCart action to:

 return RedirectToAction("Index", new { returnUrl = returnUrl });

Upvotes: 0

DavidG
DavidG

Reputation: 118947

Your index action looks like this:

public ViewResult Index(string returnUrl) { ... }

It takes the parameter of returnUrl and insert that into the model which you return. If you browse to your website without specifying a return URL, it will be blank, for example:

http://localhost:1234
http://localhost:1234/Home/Index

Try passing a parameter like this:

http://localhost:1234?returnUrl=xxxx
http://localhost:1234/Home/Index?returnUrl=xxxx

Notice that the parameter name matches the index action. So in your AddToCart and RemoveFromCart actions, you need to change the name of the parameter from url to returnUrl.

return RedirectToAction("Index", new { returnUrl = returnUrl });

Upvotes: 1

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