1. Jitendra
    Jitendra avatar
    2 posts
    Member since:
    Jul 2019

    Posted 04 Jul Link to this post

    unknown element telerik:GridColumnGroups
  2. Jitendra
    Jitendra avatar
    2 posts
    Member since:
    Jul 2019

    Posted 04 Jul in reply to Jitendra Link to this post

    Can any one may please help......................
  3. Rumen
    Admin
    Rumen avatar
    14107 posts

    Posted 04 Jul Link to this post

    Hi Jitendra,

    I have two suggestions:
    - check out this forum on the matter - https://www.telerik.com/forums/radgrid-is-not-a-known-element-error
    - upgrade to the latest version and make sure that the Telerik.Web.Design.dll is put in the bin folder.

    Regards,
    Rumen
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