ASP.NET MVC : how do I return 304 “Not Modified” status?

Question

ASP.NET MVC 3.0, IIS 7, .NET 4

I have an action that returns data that seldom changes (almost static).

Is there an easy way to:

1. return 304 \"

Answer 1

(Very!) late answer but this question pops up near the top in search engine results so it might be useful to future people landing here.

Alternative for part 1:

return new HttpStatusCodeResult(304, "Not Modified");