How to ignore current route values when generating links?

Question

The question is similar to asp.net mvc Html.ActionLink() keeping route value I don't want, but with a twist that makes it more complex.

Starting from a default n

Answer 1

To solve it in this case is quite easy if yo don't care how it's solved.

Change the third link to:

@Url.RouteUrl("R2")

which gives me:

• /Home/Foo/Index
• /Home/blah/Index
• /Home/Index

Why it happends in the first case is something I have yet to figure out. I have been bitten by this too but mostly when it comes to forms.

UPDATE 1:

I was digging around the MVC source and created a few tests that reproduced this problem. The problem seems to be when

RouteCollection.GetVirtualPath(requestContext, correctedValues);

is run. It creates a querystring with the old id. Exactly why I couldn't tell as that class isn't located in the MVC source.