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?

No comments posted yet

Your Answer:

Login to answer
81 Like 43 Dislike
Previous forums Next forums
Other forums

how to get values from $_Post with onchange="form.submit();"?
Hi, I have a form that submit to itself with a file upload field and two other hidden field values.<

Strip Slashes Help
I've got a script that i've downloaded of the net to edit multiple fields from my sql database, and

Error when call dll from oracle
Hi all, please help me!

I have dll write C language, I want call it from oracle procedur

selectbox+database connection retrive problem
Code: [Select]
<tr>
<th align="left" scope="c

Check before inserting in DB ???
This is my code
---------------
if ( $_POST ['Submit'])
{{
$username = $_POST ['usernm

my two tables
table1 : col1 = topicid , col2 = topic

table2 : col1 = sentid, col2 = sentence

Cod

Problem in back link
I have page where i have given javascript back link but when i click on it browser give a message

I need help on this PHP code
Hi everybody, I made some kind of mistake while editing the code below. As you see, at the 3 row my

Using loop to count number of entries
I'm writing a program that must ask user to type in numbers. After each entry, the program has to re

sql error
I have been looking at this code for 20mins and can't work out what I am doing wrong. There is somet

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash