title: PostBackTrigger on multiple LinkButtons in an update panel
body: <p>I have a search form in an updatePanel which retrieves a list of users in a grid in the same UpdatePanel. The name of each user is a commandLink. I want to make the commandLinks as PostBackTriggers.
  But when I do it I get an error at the pageLoad time that the controlId does not exist and its true because the grid of users does not render at the load time but through an ajax call.
  Any ideas on how can I make the multiple command buttons in a grid retrieved through ajax call as post back triggers? </p>