I have a web application that has forums. I would like to you the asp.net sitemap features for the dynamic forums.

would it be efficient if I query a list of forums and sub forums from my database and transform it into the web.sitemap. Maybe I could add a sqldependency?

Also note this. I have a url rewriter. "ViewTopic/234/1.aspx".  The "1" is the pagenumber, and "234" is the topicid. if i create a sitemap node with "ViewTopic/234", would asp.net recognize "ViewTopic/234/1.aspx as the same location?

 I am afraid you could not. web.sitemap is a static file at runtime, that is, you could not modify it at runtime. I think you can try to use the sitemap provider to try to implement it. more information at: http://msdn2.microsoft.com/en-us/library/aa479033.aspx . Thanks!

 I found a way to get it working!

Under the function FindSiteMapNode, I check the rawurl to see if it one the the pages I use for the paging. If it is, I replace the page number with a 1.

A clean interface for the user, tons of information for a spider!