title: set pages main html tag in c#
body: <p>I am writing a .net c# website which is available in multiple languages. How can I set the following main html tag in code behind of a page:</p>
  
  <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"&gt;
  </code></pre>
  
  <p>Is this possible?</p>