RadDropDownList does not exist in the namespace Telerik.Web.UI

5 posts, 1 answers
  1. Sonia
    Sonia avatar
    90 posts
    Member since:
    Mar 2012

    Posted 18 Apr 2013 Link to this post

    When using  RadDropDownList control I get the following error:

    Error 1 The type or namespace name 'RadDropDownList' does not exist in the namespace 'Telerik.Web.UI' (are you missing an assembly reference?)

    This is a piece of the code:

    <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
        <telerik:RadDropDownList runat="server" ID="DropDownListCuadroMandos" TabIndex="1" Width="200" DropDownWidth="200" DefaultMessage="Select one ..."
        DataSourceID="SqlDataSource1" DataTextField="Descripcion" DataValueField="IdIndicador">

    The reference to the assembly is located at:
    C:\Program Files (x86)\Telerik\RadControls for ASP.NET AJAX Q1 2012\Bin40\Telerik.Web.UI.dll

    Any suggestion? Thank you.

  2. Answer
    Kate avatar
    1898 posts

    Posted 18 Apr 2013 Link to this post

    Hi Sonia,

    Please note the RadDropDownList control is available with the Q1 2013 release of the RadControls as fully described in our release history here. Therefore if you use any other version that is older than the mentioned one it is likely to get the message that you describe.

    Kind regards,
    the Telerik team
    If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
  3. Sonia
    Sonia avatar
    90 posts
    Member since:
    Mar 2012

    Posted 19 Apr 2013 Link to this post

    Thank you Kate,

    I have updated RadControls for ASP.NET AJAX and now it works perfect.

  4. Christopher
    Christopher avatar
    8 posts
    Member since:
    Apr 2011

    Posted 21 Aug 2013 Link to this post

    I think it would be useful - maybe I'm just missing it - to include the version a control became available on the Demo and/or Help pages for that control. And furthermore to have version annotations to features and properties on those pages that cross-reference the release history. Failing that - an easy way to search the release history for a particular control.
  5. Princy
    Princy avatar
    17421 posts
    Member since:
    Mar 2007

    Posted 22 Aug 2013 Link to this post

    Hi Christopher,

    Here you can find the Telerik RadControls Release History where all the RadControls versions are listed out. You can navigate to the corresponding version page which lists the new controls added to the RadControls suite as well as point out the new features and error fixes added to the existing RadControls belonging to the corresponding version.

    Hope this helps,
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