title: How can I get the base (last part) of a URL?
body: <p>I have URL's like the following:</p>
  
  <pre><code>www.abc.def.xxx
  www.abc.xxx
  www.abc.def.ghi.yy
  </code></pre>
  
  <p>I need to find some way of getting the base "xxx" or "yy" when the URL is different. Can anyone think of a way I can do this with c#</p>