How to get Id update panel that initial a request in javascript

Question

I want to know Id update panel that initial a request in JavaScript .I write this script but it return undefined.

var prm = Sys.WebForms.PageRe         


        

Answer 1

You can use the get_updatePanelsToUpdate that return an array with the Ids of the UpdatePanels that will be going to updated.

http://msdn.microsoft.com/en-us/library/ee224805.aspx