How to get path of root web site when app is two levels deep?

[John Dalberg]

I have an asp.net app that is in a folder which is two levels under the
website root folder. The website has a login.aspx which is in the root
folder.

How do I get the relative path to the web site root folder (not the curent
app folder)? A generic one that works no matter how deep the folder is in
the folder heirarchy

 

[Juan T. Llibre]

If it's just a subdirectory, you can use a slash "/"
to signify the root directory of an application.

i.e., / refers to the root directory

If it's an ASP.NET application, you can't make a reference
to the root directory of another application, except by name
in a fully-qualified URL.

i.e., From http://yourserver.com/oneapp
you could refer to http://yourserver.com/anotherapp

but you can't refer to /anotherapp from /oneapp,
unless you use a fully-qualified URL