How to code one aspx file to open many links for many file folders?

In the following codes, after clicking the "NewsletterArticles" link, I can display the FileInfo for the
"NewsletterArticles" folder.  In fact I have more links with different folder names and each link opens
an aspx file for each folder.  How can I cdoe only one aspx file and automatically display FileInfo for
each folder/link?  I am using VS 2008 ASP.net 3.5.  Thanks.
<% 
Dim dir As System.IO.DirectoryInfo = New System.IO.DirectoryInfo("C:\MyWebsite\NewsletterArticles"< ...