'Telerik' is undefined in UI for ASP.NET AJAX Scheduler

Maxime

30 posts

Member since:
May 2006

Posted 19 Oct 2007 Link to this post

Hi,

I want to evaluate the radScheduler component. I have dowloanded the latest version of Prometheus.

I only put a on a radScheduler component on a form with a datasource but at exection I obtain the following popup message :

'Telerik' is undefined

The code generated is :

...

</div><div class="rsFooter">

<a class="rsFullTime" href="#">Show 24 hours...</a>

</div><script type="text/javascript">

Telerik.Web.UI.RadScheduler.FixHeight("RadScheduler1");

<

PS : My global settings for my machine are "French".

Best regards,

Atanas Korchev

Admin

8462 posts

Posted 19 Oct 2007 Link to this post

Hi Sébastien FLEURIET,

We have encountered such an error before. "Telerik" is undefined indicates that for some reason the JavaScript files which support RadScheduler (and the whole "Prometheus" suite) are not loaded.

Could you please open a formal support ticket and attach your page there? It will help us trace the problem and provide a solution

Greetings,
Albert
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

Atanas Korchev

Admin

8462 posts

Posted 19 Oct 2007 Link to this post

Hi Sébastien FLEURIET,

We have encountered such an error before. "Telerik" is undefined indicates that for some reason the JavaScript files which support RadScheduler (and the whole "Prometheus" suite) are not loaded.

Could you please open a formal support ticket and attach your page there? It will help us trace the problem and provide a solution

Greetings,
Albert
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

Maxime

30 posts

Member since:
May 2006

Posted 22 Oct 2007 Link to this post

Hi,

Problem solved.

On another machine it's ok. The problem seems to come from my Visual Studio.

Best regards,

Sheepdog

72 posts

Member since:
Nov 2005

Posted 05 Nov 2007 Link to this post

I to am getting the same error.
'Telerik" is Undefined

I have a basic page, within a master page, a web control and the rad scheduler.

attached is the form page

<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" title="Untitled Page" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<%@ Register Assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"

Namespace="System.Web.UI" TagPrefix="asp" %>

<%@ Register Assembly="RadCalendar.Net2" Namespace="Telerik.WebControls" TagPrefix="radCln" %>

<%@ Register Src="BulletinBanner.ascx" TagName="BulletinBanner" TagPrefix="uc1" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<uc1:BulletinBanner ID="HomeBulletinBanner" runat="server" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

<telerik:AjaxSetting AjaxControlID="rsDefault">

<telerik:AjaxUpdatedControl ControlID="rsDefault" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<br />

 <telerik:RadScheduler ID="rsDefault" runat="server" AllowDelete="False" AllowEdit="False">

</telerik:RadScheduler>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Height="75px"

Width="75px">

<asp:Image ID="Image1" runat="server" AlternateText="Loading..." ImageUrl="~/RadControls/Ajax/Skins/Default/Loading.gif" />

</telerik:RadAjaxLoadingPanel>

</asp:Content>

This is the codebehind:

Option Explicit On

Option Strict On

Imports System.Data

Partial Class _Default

Inherits SecurityClass

Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit

PageSecurityLevel = 1

End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

HomeBulletinBanner.Pagename = PageName

If Not Page.IsPostBack Then

getCalendarData()

End If

End Sub

Private Sub getCalendarData()

Dim myBal As New BAL

Dim myDs As DataSet

Dim dCurMonthStartDate As Date

Dim dCurMonthEndDate As Date

Try

dCurMonthStartDate = Date.Parse(Now.Month.ToString & " " & "01, " & Now.Year.ToString)

dCurMonthEndDate = GetMonthEndDate(Now.Month, Now.Year)

myDs = myBal.GetPromos(dCurMonthStartDate, dCurMonthEndDate)

rsDefault.DataSource = myDs

rsDefault.DataKeyField = "EventID"

rsDefault.DataStartField = "StartDate"

rsDefault.DataSubjectField = "Title"

rsDefault.DataEndField = "EndDate"

rsDefault.DataBind()

Catch ex As Exception

Throw

End Try

End Sub

End Class

Dave Friedel

20 posts

Member since:
Mar 2004

Posted 06 Nov 2007 Link to this post

Same error here. Not sure why though. I installed the AJAX from Microsoft and your Prometheus libraries. Is there any way to manually place the javascript in the right location?

D.

Peter

Admin

6637 posts

Posted 07 Nov 2007 Link to this post

Hello Dave,

There is a help topic for RadMenu which treats the same issue. Please, consider case #2 from this article as well as the "See also" links at the bottom.

I hope this helps.

Greetings,
Peter
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

Sheepdog

72 posts

Member since:
Nov 2005

Posted 07 Nov 2007 Link to this post

Dave,

I fixed my problem by adding code to my web.config file. I looked into the examples that Telerik provides for Prometheus. I ran the solution, and it worked. So that told me that it was not a problem with my box.

I looked at the web.config file in the examples, and noticed a lot of code that was not in mine. So bascialy I copied that parts mine did not contain that applied only to the script manager, and the scheduler. I obviously didnt copy over any appsettings or connection strings. And that seemed to work for me....

Here is what my web.config file looks like now...

<?xml version="1.0"?>

<!--

Note: As an alternative to hand editing this file you can use the

web admin tool to configure settings for your application. Use

the Website->Asp.Net Configuration option in Visual Studio.

A full list of settings and comments can be found in

machine.config.comments usually located in

\Windows\Microsoft.Net\Framework\v2.x\Config

-->

</appSettings>

<system.web>

<!--

Set compilation debug="true" to insert debugging

symbols into the compiled page. Because this

affects performance, set this value to true only

during development.

Visual Basic options:

Set strict="true" to disallow all data type conversions

where data loss can occur.

Set explicit="true" to force declaration of all variables.

-->

</assemblies>

</compilation>

</httpHandlers>

</httpModules>

<pages>

</controls>

</namespaces>

</pages>

<!--

The <authentication> section enables configuration

of the security authentication mode used by

ASP.NET to identify an incoming user.

-->

<!--

The <customErrors> section enables configuration

of what to do if/when an unhandled error occurs

during the execution of a request. Specifically,

it enables developers to configure html error pages

to be displayed in place of a error stack trace.

</customErrors>

-->

</system.web>

<system.webServer>

</modules>

</handlers>

</system.webServer>

</configuration>

HOPE THIS HELPS
Sheepdog out....

Dave Friedel

20 posts

Member since:
Mar 2004

Posted 21 Nov 2007 Link to this post

wow... here is another one for the community...

I figured it out why my case was failing.. If we specify a

ScriptManager.ScriptPath = <some path>

telerik's location gets overrided and it fails to find the scripts.

Gotta luv it :)

Cheers.
D.

Oliver

14 posts

Member since:
Nov 2007

Posted 09 Dec 2007 Link to this post

Hey,

I got this error, but resolved it by changing the LoadScriptsBeforeUI attribute in ScriptManager. It was false, but changing it to true prevented this error.

This is a shame as I did really want to load the majority of the UI before the scripts. Pretty sure this is better for SEO benefits too.

LoadScriptsBeforeUI="true" />

David

38 posts

Member since:
Oct 2007

Posted 14 Dec 2007 Link to this post

I had this frustrating error and what Sheepdog suggested up there ^^^ totally fixed it for me (about modifying the web.config file to mimic what's in the example on the telerik site) I copied and pasted what he said to into my web.config file and voila! It works great. Thanks bro!

Dave Friedel

20 posts

Member since:
Mar 2004

Posted 14 Dec 2007 Link to this post

It popped up again for me. I am unsure how to reproduce it (those dreaded small samples) but it only happens with Telerik and Microsoft's AJAX. I moved to a different scheduler with Microsoft's AJAX and it works fine. I made all the changes above but will revisit Prometheus later.

D.

Peter

Admin

6637 posts

Posted 15 Dec 2007 Link to this post

Hi Dave,

The problem could be caused by the web.config settings. You need to include the settings for a new ASP.NET Ajax Web Site. Have you checked this?

Peter
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

Dave Friedel

20 posts

Member since:
Mar 2004

Posted 15 Dec 2007 Link to this post

Yes. I double checked. The scheduler will display but all the links are nulled.

D.

hkdave95

245 posts

Member since:
Nov 2006

Posted 26 Dec 2007 Link to this post

Hi

I am getting the same problem.

'Telerik' is undefined.

This deos not happen in my VS 2008 development environment. However it does occur in my "Test" environment.

I have checked and re-checked my web.config and it contains all the necessary sections for an Ajax enabled website.

Any ideas ?

Kind Regards

David

Rainz

25 posts

Member since:
Nov 2005

Posted 27 Dec 2007 Link to this post

Same problem in VS 2008 / Vista

Atanas Korchev

Admin

8462 posts

Posted 27 Dec 2007 Link to this post

Hi Guys,

Did anyone manage to isolate the problem in a simple web site? This would of great help to find what is causing this error.

Regards,
Albert
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

hkdave95

245 posts

Member since:
Nov 2006

Posted 27 Dec 2007 Link to this post

Hi

It seems quite difficult to isolatre in a test project however you can see it happening at http://daresoft.no-ip.co.uk/McDiamonds

Please note that it is running from my loft so can be quite slow, but it does get there in the end.

Perhaps you can see what is happening from the "View Source".

Kind Regards

David

Rainz

25 posts

Member since:
Nov 2005

Posted 31 Dec 2007 Link to this post

Here's the problem on my dev machine (view with IE7):
http://dev.netmasons.com/teleriktesting

If anyone has solved this bug please let me know.

Thanks

Atanas Korchev

Admin

8462 posts

Posted 03 Jan 2008 Link to this post

Hello Rainz,

If you are using RadScriptManager and you receive the "Telerik is undefined" error the http handler is probably not registered in your web.config. Please check for the presence of:

    
            <httpHandlers> 
        
               <add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" validate="false" /> 
        
            </httpHandlers>

Regards,
Albert
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

hkdave95

245 posts

Member since:
Nov 2006

Posted 03 Jan 2008 Link to this post

Hi

I am using hte RadScriptManager, and this line is inserted into my web.config file.

Any other ideas ?

Kind ERgards

David

Dave Friedel

20 posts

Member since:
Mar 2004

Posted 03 Jan 2008 Link to this post

I have one... I build my pages dynamically in the Page_Init routine - which loads the modules dynamically. I can only guess that the error occurs because something does not get written at the correct time during the generation of the page but have checked and all the html seems in order.

I have come to a dead-end trying to figure this out and it is the only thing I can come up with. I also create the ScriptManager on the page dynamically during the Page_Init routine. I have used other vendors controls supporting Microsoft Ajax and they work with my method - but prefer Telerik's codebase - actually I wish I could just use Telerik's Ajax - but prometheus seems to be the roadmap.

hope this helps narrow it down some.

hkdave95

245 posts

Member since:
Nov 2006

Posted 03 Jan 2008 Link to this post

Hi

This may or may not help any of you with the same problem.

My FIX (hooray) for this problem was to include the language="javascript" property in a <script> tag in the <head> tag block.

This has fixed two of my websites so I am now a very happy man and might just go down the pub.

Kind Regards

David

hkdave95

245 posts

Member since:
Nov 2006

Posted 03 Jan 2008 Link to this post

Hi

I might have been a little bit premature in my celebrations. I didn't go to the pub when my websites seemsed to be working, but stayed and played around with them. It seems that the problem has returned.

I have two projects that are exhibiting this error.

1. A .NET 2.0 VS 2005 website
2. A .NET 3.5 VS 2008 project

I also have a third project which does not exhibit this phenomena.

So ... What next to try ?

Kind REgards

David

Atanas Korchev

Admin

8462 posts

Posted 04 Jan 2008 Link to this post

Hello David,

After inspecting your site I found out that requesting http://84.65.125.118:8083/McDiamonds/Telerik.Web.UI.WebResource.axd returns 404 for some reason.

This URL is rendered by RadScriptManager and represents the http handler serving JavaScript resources. The 404 error is effectively causing the "Telerik is undefined" error because no telerik scripts have been loaded. It also appears that some other HTTP handler ThumbHandler.ashx also returns 404. I have attached a screenshot from FireBug. It seems to me that http handlers do not work for some reason despite they are registered in the web.config. Maybe it's because you are web application is running in Integrated mode (IIS7).
You can try inserting the http handler registration inside <system.webServer> instead of <system.web>:

    
            <system.webServer> 
        
                <httpHandlers>  
        
                    <add path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" validate="false" />  
        
                </httpHandlers>  
        
            </system.webServer>

I hope this helps,
Albert
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

screenshot.JPG

hkdave95

245 posts

Member since:
Nov 2006

Posted 04 Jan 2008 Link to this post

Hi Guys

This has helped enourmously.

In IIS7 against the Website in question you can add Handlers. I added the two offending handlers and off the website went without the offending message.

This is great.

Thanks

David

Michael

3 posts

Member since:
Jan 2008

Posted 12 Jan 2008 Link to this post

Hello,
I have been playing with the new Prometheus code and I have the "Telerik is undefined" error in my project as well. I have tried all of the solutions suggested in this post and I don't have an OutputCache page directive anywhere in my site. Are you still working on resolutions for this problem? I would love to start using Prometheus but am waiting to do so until I can resolve this problem. Thanks for your help!
Michael

Peter

Admin

6637 posts

Posted 14 Jan 2008 Link to this post

Hello Michael,

Could you provide more information such as specifying your web server, operating system, exact version of Telerik.Web.UI and which controls you use? A live url demonstrating the problem would be very helpful as well.

Best wishes,
Peter
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

hacheyj

6 posts

Member since:
Nov 2006

Posted 03 Mar 2008 Link to this post

I ran into this problem as well - ends up it was because authentication on the rest of the site - placing the following in my web config fixed it up:

    
            <location path="Telerik.Web.UI.WebResource.axd">  
        
                <system.web> 
        
                  <authorization> 
        
                    <allow users="*"/>  
        
                  </authorization> 
        
                </system.web>    
        
              </location>

A

20 posts

Member since:
Mar 2008

Posted 26 Mar 2008 Link to this post

Ok, here is the solution for VISTA/WindowsServer2008, IIS7, .NET 3.5

Add the telerik WebResource handler below to the system.WebServer section of your web.config

<system.webServer>

<

handlers>

<

add name="Telerik.Web.UI.WebResource.axd_" path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" preCondition="integratedMode,runtimeVersionv2.0" />

</system.webServer>

</

handlers>