title: Why I get a "Active schema does not support the element"?
body: <p>I'm working with Visual Studio 2003 and ultra grid.
  In my html code I can see tag error like</p>
  
  <pre><code>active schema does not support the element...
  </code></pre>
  
  <p>However, I don't see any problem to execute my web application. I just wanted to know why I am getting Tag error. Is it because of third party tool ultrgrid?</p>