ASP.NET - UpdatePanel and JavaScript

This should do the trick:

       <script type="text/javascript">
            var prm = Sys.WebForms.PageRequestManager.getInstance();
            prm.add_beginRequest(BeginRequestHandler);
            prm.add_endRequest(EndRequestHandler);

            function BeginRequestHandler(sender, args) 
            {
                 //Jquery Call
            }

            function EndRequestHandler(sender, args) 
            {
                 //Jquery Call

            }
        </script> 

Here is an article for how to do it using ScriptManager's static method RegisterClientScriptBlock. Tried it and works like a charm.

http://csharperimage.jeremylikness.com/2009/06/inject-dynamic-javascript-into-aspnet.html

var requestManager = Sys.WebForms.PageRequestManager.getInstance();
requestManager.add_beginRequest(function () { alert('here1') });
requestManager.add_endRequest(function () { alert(here2') });

Source: http://www.howtositecore.com/?p=36

The Sys.WebForms.PageRequestManager.getInstance() method works great for me as well.

I work with a lot of pages that contain multiple Updatepanels and I've learned that this will automatically fire even if the Updatepanel you don't want it for refreshes. So inside the function that fires on the event make sure you have something like:

function BeginRequestHandler(sender, args) {
if (args.get_postBackElement().id == "ID of the Updatepanel") {
// do stuff here

Bruno,

First, to answer your direct question. In your callback that is being called by the update panel, you should be able to use a RegisterStartupScript call to invoke a JS method . Then in your JS method, you would show the message and then you can use do a:

setTimeout('$('#myMessage').fadeOut("slow")', 4000);

to have it fade away after 4 seconds.

To go one step further, since you're already implementing JavaScript, I would invite you to check out this article about UpdatePanels. If possible, I would try to send Ajax calls to do your inserting, copying, and editing and this would further simplify your user feedback and would prevent excess info across the wire.