c# - ASP.NET Get all pages of website -

i want parse websites , list of pages on current domain, a:

sample.com/

sample.com/page1/

sample.com/page2.html

but can't find samples, how build sitemap or tree using c# , asp.net

i found 1 example: http://www.codeproject.com/articles/13486/a-simple-crawler-using-c-sockets

but can't understand, how author use it

if(directory.exists(struri) == true) { //some code directoryinfo dir = new directoryinfo(foldername); fileinfo[] fia = dir.getfiles("*.txt"); }

when use code, result in if false. when use

getfiles function

i have exception:

uri formats not supported

who have ideas?

remember on web ambient, cant read files way, need use

server.mappath(url)

to physical address files, can loop using.