How do you get client-side script to execute on an ASP.NET postback? (from an UpdatePanel)

Question

Basically I want to get some javascript to be sent back to the client and executed from a postback inside an UpdatePanel. Furthermore this is inside of a reusable WebContro

Answer 1

If I understand correct you look for the endRequest event - to avoid the onload of your image. With this code you get the event of your panel update on javascript side.

var prm = Sys.WebForms.PageRequestManager.getInstance();    
prm.add_initializeRequest(InitializeRequest);
prm.add_endRequest(EndRequest);

function InitializeRequest(sender, args) {      
}

function EndRequest(sender, args) {
}