Html.ActionLink value of ViewBag

Question

In ASP MVC C# I putted a List(Cars) in the ViewBag.cars, now I want to make an actionlink with the title of each car, like this:

@if (ViewBag.cars != null)
{
    foreach (var car in ViewBag.cars)
    {
         <h4>@Html.ActionLink(@car.title, "Detail", "Cars", new { id = @car.id }, new { @class = "more markered" })</h4>
    }
}

The error I get when I use @car.title or just car.title as value, I get this error:

CS1973: 'System.Web.Mvc.HtmlHelper<AutoProject.Models.CarDetails>' has no applicable method named 'ActionLink' but appears to have an extension method by that name.
 Extension methods cannot be dynamically dispatched. Consider casting the dynamic arguments or calling the extension method without the extension method syntax.

What should I fill in as first parameter of the Actionlink?

Answer 1

It's because car is dynamic, so it doesn't know what the appropriate extension method could be. If you cast title to string, and id to object, it'll be fine:

<h4>@Html.ActionLink((string) car.title, "Detail", "Cars", new { id = (object) car.id }, new { @class = "more markered" })</h4>

Your other option is to make a strongly typed ViewModel.

Answer 2

Try to assign your car.title to a variable first then use that variable

@if (ViewBag.cars != null)
{
     foreach (var car in ViewBag.cars)
     {
        string title = car.title.ToString();
        <h4>@Html.ActionLink(title, "Detail", "Cars", new { id = @car.id }, new { @class = "more markered" })</h4>
     }
}