Background: I have a script which attaches event listeners to OnFocus and OnBlur of my form controls after the page has loaded. The script updates a DIV with information about the element when focused and resets the DIV when blurred. My controls are wrapped inside an UpdatePanel.

The Problem: After the AsyncPostBack has occured my event listeners no longer work. The page is meant to redirect if all the fields are valid, so I am using validators - if the page is invalid it will not redirect and it is at this point that the event listeners stop working.

The Questions: Why are my event listeners not working after the AsyncPostBack? Is there a way to permanently register an event listener?

Also, now that I think about it... Are my validators overwriting the events? The validators only do custom server-side validation, no client-side.

how did you add the javascript to your controls?
like so:
textbox1.attributes.add("onblur","checkme(self);"); ?


could you perhaps post some more code?

I'm using javascript to gather all my form fields and add the listeners through the javascript. This works just fine, my code executes correctly. The problem is right after an AsyncPostBack.

My javascript load:

I managed to find a way to accomplish it.

In my btnSubmit_Click before I do the page.isValid check I re-register the script through the ScriptManager: 

ScriptManager.RegisterStartupScript(btnSubmit, Page.GetType(), "fh", _
    "var fh = new formHelper();fh.form = 'fm';fh.divDisplay = 'divNote';fh.helpForm();", _
    True)