How to get the URL of the Action without parameters in ASP.NET MVC

Question

I have a ASP.NET MVC Web application that runs in a virtual directory on IIS. In the application, I have an Action which takes a parameter named Id.

public class MyController : MyBaseController 
{
    public ActionResult MyAction(int id)
    {
        return View(id);
    }
}

When I call the Action with the parameter 123 the resulting URL is like this:

http://mywebsite.net/MyProject/MyController/MyAction/123

In the base controller, how do I elegantly find the URL of the Action without any parameters? The string I'm trying to get is: /MyProject/MyController/MyAction

There are other questions asked about this but they do not cover these cases. For example Request.Url.GetLeftPart still gives me the Id.

Answer 1

@trashr0x's answer solves the biggest part of the problem, but misses the MyProject part and there is no need for a dictionary to construct the asked string. here is a simple solution:

var result = string.Join("/", new []{ 
    Request.ApplicationPath, 
    RouteData.Values["controller"], 
    RouteData.Values["action"] 
});