title: One Update Panel vs. Multiple Update Panels
body: <p>I have an ASP.NET web page that displays a variety of fields that need to be updated best on certain conditions, button clicks and so on. We've implemented AJAX, using the ASP.NET Update Panel to avoid visible postbacks.</p>
  
  <p>Originally there was only <em>one</em> area that needed this ability ... that soon expanded to other fields.  Now my web page has multiple UpdatePanels.  </p>
  
  <p>I am wondering if it would be best to just wrap the entire form in a single UpdatePanel, or keep the individual UpdatePanels.</p>
  
  <p>What are the best practices for using the ASP.NET UpdatePanel?</p>