Saturday, April 16, 2011

JavaScript in UpdatePanel

11:13 PM Posted by jinto jose , , No comments
Javascript events don't work after the UpdatePanel does a partial page update.

An UpdatePanel completely replaces the contents of the update panel on an update. This means that those events you subscribed to are no longer subscribed because there are new elements in that update panel.

Soln1: Re-subscribe to the events I need after every update. I use $(document).ready() for the initial load, then this snippet below to re-subscribe every update.

var prm = Sys.WebForms.PageRequestManager.getInstance();

prm.add_endRequest(function() {
// re-bind your jquery events here

The PageRequestManager is a javascript object which is automatically available if an update panel is on the page. You shouldn't need to do anything other than the code above in order to use it as long as the UpdatePanel is on the page.

Soln2: Use jQuery's live() event subscriber
$(document).ready(function () {
$("#Button2").live("click", function () {



where bind is the jquery function

Where bind is the jquery function


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