hey all,

i have about 3 to 4 updatePanels nested inside one main updatePanel and was wondering if that would cause hit in performance? like the more updatePanels you have on a page the slower?

 thanks,
rodchar

The short answer... most likely.  What are you trying to accomplish?  Usually if you have to nest UpdatePanels it's a warning sign of a poor design.  You aren't saving anything except the visible refresh with an UpdatePanel, your full page is still processed as if it did a postback.

You should read the following articles: http://encosia.com/2007/07/11/why-aspnet-ajax-updatepanels-are-dangerous and http://encosia.com/2007/10/24/are-you-making-these-3-common-aspnet-ajax-mistakes/

-Damien