reporting services - SSRS: Relative URL Hyperlink

Question

In SSRS 2008 I would like to create a relative path URL. Long story short I have a subscription that outputs a few thousand static HTML pages to a folder that is used as content for a website. In the past I have created full URLs to other pages on the site (sub-reports, really) using Text Box Properties -> Action -> Go to URL. I would like to modify my code so that it returns the relative path of the target instead of the full URL. This will reduce the likelyhood that someone will eventually break the navigation by changing the website domain or folder structures. When I tried to make this work, the objects that were previously clickable are no longer, well, clickable. How do I make a SSRS hyperlink jump to a relative URL instead of a fully-qualified URL?

Here's what works:

="https://some.domain.com/some_page/" + Fields!Custom_Page_Name.Value.ToString() + ".html"

Here's what doesn't work:

="../" + Fields!Custom_Page_Name.Value.ToString() + ".html"
="/" + Fields!Custom_Page_Name.Value.ToString() + ".html"
=Fields!Custom_Page_Name.Value.ToString() + ".html"
=".." + Fields!Custom_Page_Name.Value.ToString() + ".html"
="" + Fields!Custom_Page_Name.Value.ToString() + ".html"

Answer 1

Just read this Q and A and have a better solution for anyone looking. If you want relative url then just use javascript e.g.

="javascript:void(window.navigate( '/mydirectory/reportcountry.aspx?CountryID=" + Fields!CountryID.Value.ToString() + "'))"