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Unknown server tag 'telerik:RadColorPicker'

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ColorPicker
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Patrik
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Patrik asked on 08 Nov 2007, 10:41 AM
Hello!
I've expired a strange problem when i tried to use RadColorPicker in my web application. I Have included the Server tag like this: 

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

I have also added the files "Telerik.Web.UI.dll"  and "Telerik.Web.UI.XML" to the bin map. In the code behind i find the classes included in Telerik.Web.UI but in the aspx-file i cannot find the controls such as ColorPickerItem ect. (for example:

<telerik:RadColorPicker runat="server" ID="RadColorPicker2" Columns="5" Width="210">

This row gives the error message in design mode "Unrecognized tag prefix or device filter 'telerik'."

When i try the application i get the errormessage: "Unknown server tag 'telerik:RadColorPicker'" Other Server tags works find in this file.
Regards
/Per

 

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Petya
Telerik team
answered on 08 Nov 2007, 01:23 PM
Hi Per Russberg,

I am not able to reproduce the problem with the provided piece of code. Please, check you settings in the Web.config file. If everything seems fine, then we strongly suggest creating a new simple project and adding the RadColorPicker from the toolbox. I am attaching a very simple application demonstrating that everything works - you may take a look at it to see if you have anything set up in a different way. Let us know how it goes.

Sincerely yours,
Petya
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Patrik
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answered on 08 Nov 2007, 03:14 PM
Hi! Tanks for the quick response. The example you send did'nt work for me. I coudnt run the project at all. I'll try to look at the web.config file and try colorpicker in another project and see if i can figure something out. I'll come back to you with the result. Any other ideas about why this wont work for me?
Best regards
Per  
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Petya
Telerik team
answered on 08 Nov 2007, 03:40 PM
Hello Per Russberg,

We would like to request some more information to be able to get a broader view of your settings. Do you have ASP .NET AJAX installed because the project I sent you requires this? What version of VS and .NET do you use? What is the exact error that you get when trying to run my project? Looking forward to your answers on these questions and your progress with the new project.

All the best,
Petya
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Patrik
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answered on 09 Nov 2007, 07:24 AM
Hello Petya!
The project i tried to use the RadColorPicker has Ajax .NET. The version of VS is 8.0.50727.42 and .NET v2.0. The error message told me to add Custom Error tag in Web.Cofig. That did'nt help. The same error message appeard anyway when i tried to run the project.
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Petya
Telerik team
answered on 09 Nov 2007, 09:14 AM
Hello Per Russberg,

Unfortunately we are running out of ideas what may be causing the problem. You could try to uninstall our controls and then install them again or test my project on a different computer. We have not received other similar complaints so far which makes us believe that the problem is with some part of the configuration of your computer - if you can think of what else may be different on your computer from the common settings, please share with us.

Best wishes,
Petya
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Nilotpal
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answered on 03 Sep 2008, 06:56 PM
hi,

I am using Telerik Web Controls. It works on one web app, but doesn't on the other. I would like to know the root cause of the issue. did anyone find any resolution to this?
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Tervel
Telerik team
answered on 04 Sep 2008, 01:03 PM
Hello Nilotpal,

Please provide us with more details on what errors you receive in applications where Telerik.RadControls would not run, so that we provide you back with suggestions. The most common reason for Telerik RadControls not running is when you do not have MS AJAX configured properly in an application.


Regards,
Tervel
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Patrik
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Petya
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Patrik
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Nilotpal
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Tervel
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