Unknown server tag 'telerik:BinaryImageControl'

4 posts, 0 answers
  1. Mojo
    Mojo avatar
    10 posts
    Member since:
    Oct 2006

    Posted 08 Jul 2009 Link to this post


    If I create a new website and drag/drop a BinaryImageControl to the default.aspx, I get following error:

    Unknown server tag 'telerik:BinaryImageControl'.

    I've tried repair and reinstall "RadControls for ASP.NET AJAX Q2 2009" without any luck.

    I can use the new Capatcha and ListBox fine.

    Any idea?

  2. Sebastian
    Sebastian avatar
    9934 posts

    Posted 08 Jul 2009 Link to this post

    Hello Mojo,

    Unfortunately we have to confirm that this is an issue with the RadBinaryImage design-time in the Q2 2009 release of the product - I apologize if this caused you inconvenience. We will address it for the SP1 release (it is already fixed in the latest internal build of the controls which will be uploaded today) and in the meantime you need to modify the RadBinaryImage tag manually as follows:

    <telerik:RadBinaryImage .... />

    to eliminate the design-time error.

    Kind regards,
    the Telerik team

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  3. Philippe
    Philippe avatar
    2 posts
    Member since:
    Mar 2013

    Posted 22 Dec 2015 in reply to Sebastian Link to this post


     We upgraded to the latest version 2015 Q3. When we have rad controls in our own usercontrols and add these to our pages, we still see the "Unknown server tag 'telerik:RadBinaryImage' error in all our controls in Design time.


  4. Eyup
    Eyup avatar
    3916 posts

    Posted 25 Dec 2015 Link to this post

    Hello Erik,

    I've already replied to your ticket with ID: 997327. I suggest we continue our conversation on the mentioned thread.

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