title: How to use string.Contains for list of values
body: <p>I have the following xmlnode (string) whose value would be of few given type i.e: </p>
  
  <pre><code>"Ansi_nulls","Encrypted","Quoted_identifer" etc.
  </code></pre>
  
  <p>I want to test the xmlnode using  <code>xmlNode.Contains ("xxx","yyy")</code> ..</p>
  
  <p>What is the correct syntax ?</p>