Here is a line of code in my Controller class:
return JavaScript(String.Format(\"window.top.location.href=\'{0}\';\", Url.Action(\"MyAction\", \"MyController
I came across the same problem myself and solved it using a data- attribute and some jQuery. The benefit of doing it this way is that you still get the correct URL when you hover over the link, even though it does a POST. Note that the Html.BeginForm contains the default action in case the user hits the enter key.
HTML (ASP.NET MVC3 Razor)
@using (Html.BeginForm("Quick", "Search"))
{
Search
Advanced
}
jQuery
$("a[data-form-method='post']").click(function (event) {
event.preventDefault();
var element = $(this);
var action = element.attr("href");
element.closest("form").each(function () {
var form = $(this);
form.attr("action", action);
form.submit();
});
});