Timer control causing error

Posted on 16th Feb 2014 07:03 pm by admin

I recently decided to add a timer control to an existing page that uses AJAX on my site. As soon as I added the timer control and ran my app, I started getting the following error:Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Script controls may not be registered before PreRender.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:

[InvalidOperationException: Script controls may not be registered before PreRender.]
System.Web.UI.ScriptControlManager.RegisterScriptControl(TScriptControl scriptControl) +236
System.Web.UI.Timer.OnPreRender(EventArgs e) +75
System.Web.UI.Control.PreRenderRecursiveInternal() +77
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360
I've been using AJAX on this page for months. Why is this timer control suddenly causing me to get a control validation error? Chopped down version of the front end code:1 2 3 4 5 6 The error occurs on page load. I don't get any compilation errors. Any thoughts?

Your Answer:

Login to answer

Other forums

Variable passed to each() is not an array or object
Hi,

This is a email a friend type of form, and it isn't working anymore.

<?

MySQL Does not UPDATE- SQLString Problem
vb Syntax (Toggle Plain Text) 1. SQL = "UPDATE sampletable SET column1 = 'C1sample1'"

filesize problem
i use ubuntu 9.10 and i have mountet a folder from an windows

/mount/FOLDER
/mount/FOLDER/

Php WordPress help
I am writing the following code for making a plugin

<?php
header("Content-Type

Unable to retreve the values from Mysql Query
Hi,

Here is the php code that I have, Query is running properly in phpmyadmin and is resu

parse error
Parse error: syntax error, unexpected '[', expecting ')' in /Users/admin/Sites/phptest/array.php on

update 2 columns by doing inner 2-column query
Hi,
is something like this possible?

update contract_all set col1,col2 =
(

Strange array issue, never happened before.
mysql_fetch_array returns 1 array per call. Generally that's why it is inserted into a while statem

Looping Problem
I've got a client that has a database with about 200 events at any given time. I'm trying to loop t

Help with PHP Calendar code...
Hello, I'm new to this forum and I'm glad I found it.
I wrote this code for a PHP calendar as an