title: Partial postback with Javascript
body: <p>I couldn't find something similar in SO.  </p>
  
  <p>In ASP.NET, is there any way that on cue I can cause a partial postback with Javascript in an UpdatePanel?<br>
  I tried <code>__doPostBack()</code> but it does a full postback.<br>
  I can trick it with a dummy button and fire <code>click()</code> then handle the partial postback that way, but I want a more graceful way than trickery.  </p>
  
  <p>Thanks.</p>
  
  <p>Edit:  I found this <a href="http://disturbedbuddha.wordpress.com/2007/11/26/">disturbedbuddha.wordpress.com/2007/11/26/</a>… but I can't get it to work =(<br>
  I would love for this method to work; it's perfect for me!
  So far what I can do using this last method is gain reference to the timer.  With the timer initially disabled, starting the timer doesn't seem to cause a postback.  However, without Ajax, if I simply have the timer enabled initially, it posts back at intervals just fine; why can't the Ajax call cause it?</p>