title: Asp.Net Ajax - Call non-static method
body: <p>From client side, I need to call a server method that is not static.</p>
  
  <p>For example, I got the following user control ucData (private instance of code-behind) that is Databind in the load event. </p>
  
  <p>The server method I need should return ucData.IsValid(). So it can't be static</p>
  
  <p>Is there a way I can do that ?</p>