Unknown server tag 'telerik:RadColorPicker'

8 posts, 0 answers
  1. Patrik
    Patrik avatar
    9 posts
    Member since:
    Dec 2005

    Posted 08 Nov 2007 Link to this post

    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

     

  2. Petya
    Admin
    Petya avatar
    869 posts

    Posted 08 Nov 2007 Link to this post

    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
    the Telerik team

    Instantly find answers to your questions at the new Telerik Support Center
  3. UI for ASP.NET Ajax is Ready for VS 2017
  4. Patrik
    Patrik avatar
    9 posts
    Member since:
    Dec 2005

    Posted 08 Nov 2007 Link to this post

    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  
  5. Petya
    Admin
    Petya avatar
    869 posts

    Posted 08 Nov 2007 Link to this post

    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
    the Telerik team

    Instantly find answers to your questions at the new Telerik Support Center
  6. Patrik
    Patrik avatar
    9 posts
    Member since:
    Dec 2005

    Posted 09 Nov 2007 Link to this post

    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.
  7. Petya
    Admin
    Petya avatar
    869 posts

    Posted 09 Nov 2007 Link to this post

    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
    the Telerik team

    Instantly find answers to your questions at the new Telerik Support Center
  8. Nilotpal
    Nilotpal avatar
    1 posts
    Member since:
    Sep 2008

    Posted 03 Sep 2008 Link to this post

    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?
  9. Tervel
    Admin
    Tervel avatar
    1337 posts

    Posted 04 Sep 2008 Link to this post

    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
    the Telerik team

    Check out Telerik Trainer, the state of the art learning tool for Telerik products.
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