title: ASP.NET Ajax retry callback after timed out
body: <p>I have a page that contains a treeview control in an update panel. When user expand a node on treeview, it causes an ajax callback to the server. Server adds new rows to the expanded node and returns to the client. But sometimes, connection problems may arise. I'm handling errors for this. When a connection error occured, I want to show a "Retry" button for retry last ajax action. My question is: How can I retry last ajax action from Microsoft Ajax Library (Javascript)?</p>
  
  <p>PS: Sorry for my bad English.</p>