Question

If I have a simple controller routed as follows:

context.MapRoute(
            "Default",
            "{controller}/{action}",
            new { controller = "Base", action = "Foo"}
        );

And the controller Foo action is as follows:

[HttpPost]
public ActionResult Foo(object bar) { ... }

How will bar be bound? I have debugged and see it is a string, but I’m not sure if it will always be marshalled to a string.

Basically I want to have the method accept a bool, List<int>, and int. I can send up a type parameter and do the model binding myself from the post. (The post is a form post).

Here are my current posts &bar=False or &bar=23 or &bar[0]=24&bar[1]=22.

I know I can look at the post inside the Foo action method, but I want some input on the best way to handle this in MVC3

Answer 1

In this case I would probably create a custom ModelBinder:

http://buildstarted.com/2010/09/12/custom-model-binders-in-mvc-3-with-imodelbinder/

then maybe use a dynamic object to allow for multiple types. See here

MVC3 ModelBinder for DynamicObject