How to call a client side javascript function after a specific UpdatePanel has been loaded

Question

How is it possible to call a client side javascript method after a specific update panel has been loaded?

Sys.WebForms.PageRequestManager.ge

Answer 1

You can hook the PageRequestManager.beginRequest event and inspect the BeginRequestEventArgs.postBackElement property.

Note that it doesn't really give you the UpdatePanel, but the control inside of the UpdatePanel. That should be good enough, though.

Edit: Even better, the PageRequestManager.pageLoaded event gives you PageLoadedEventArgs.panelsUpdated (and panelsCreated) properties.