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

Suggestions for Functional module
Hello experts,
I Have done B.Sc(Mathematics) and MCA & have learnt SAP/ABAP but do n

noob question
i traying to do a php form with auto replay for both(me and the user who send me a mail),

a u

contact form - output to page and email
I have the following in my controller:

$message['name'] = htmlentities(strip_tags(trim($_POST

Database 'Validation'
Hi everyone,
I'm trying to validate the password entered by the user with the password in the dat

Need help with some php code :)
Hey! I'm quite new to this whole thing, so please don't fire me with shait on this one =D

I'm

Multiple Options for a Single Page
For this example I want to use the Handlers option which is under Fed Admin and all the related codi

Undefined Index Notice In Internet Explorer Only
I am getting the following notice:

QuoteNotice: Undefined index: jrox in /home/ycsn/public_h

PHP time (deadline within one week)
I have a column ['projdue'], which stores the deadline for a project.
I have PHP code and <

Which PHP-Editor do you think is the best?
Hi everyone,
Myself Brian Anderson. For the last 2 years i have been working a

my code does not work.
I have a code problem.

Quote"<a href=index.php?gogo=ureticidetay&'?l={$le