Does ASP.NET MVC RC has a strongly typed RedirectToAction method already?

Question

Since I have decided to let RC go while staying with Beta for now, I have no way of knowing whether there has been some progress in this area. Who has tried it, are there strongly typed RedirectToAction and maybe ActionLink in RC?

(I know there is some extra stuff in Futures assembly, but the question really refers to the main build).

Answer 1

No, it doesn't.

protected RedirectToRouteResult RedirectToAction<T>(Expression<Action<T>> action, RouteValueDictionary values) where T : Controller
{
    var body = action.Body as MethodCallExpression;

    if (body == null)
    {
        throw new ArgumentException("Expression must be a method call.");
    }

    if (body.Object != action.Parameters[0])
    {
        throw new ArgumentException("Method call must target lambda argument.");
    }

    string actionName = body.Method.Name;

    var attributes = body.Method.GetCustomAttributes(typeof(ActionNameAttribute), false);
    if (attributes.Length > 0)
    {
        var actionNameAttr = (ActionNameAttribute)attributes[0];
        actionName = actionNameAttr.Name;
    }

    string controllerName = typeof(T).Name;

    if (controllerName.EndsWith("Controller", StringComparison.OrdinalIgnoreCase))
    {
        controllerName = controllerName.Remove(controllerName.Length - 10, 10);
    }

    RouteValueDictionary defaults = LinkBuilder.BuildParameterValuesFromExpression(body) ?? new RouteValueDictionary();

    values = values ?? new RouteValueDictionary();
    values.Add("controller", controllerName);
    values.Add("action", actionName);

    if (defaults != null)
    {
        foreach (var pair in defaults.Where(p => p.Value != null))
        {
            values.Add(pair.Key, pair.Value);
        }
    }

    return new RedirectToRouteResult(values);
}

That should work.

Answer 2

This is also included in MVC Contrib as an extension method on your controller, along with a lot of other strongly typed goodies for ModelState handling, testing, etc. It's well worth taking on the extra dependency for what it offers.