Type not compatible error...

3 posts, 0 answers
  1. Chet Watkins
    Chet Watkins avatar
    11 posts
    Member since:
    Oct 2008

    Posted 15 Dec 2008 Link to this post

    I am trying to run an ASCX that is using RadControls through a an ASPX page in MOSS.  I followed steps on how to do this and also went through all the steps offered by Telerik for SharePoint to be able to see their controls and to use AJAX with .net 3.5. When I run the page, I get the following error.

    "An error occurred during the processing of /_controls/MasterSchedule.ascx. The base class includes the field 'ddlReportEntity', but its type (System.Web.UI.WebControls.DropDownList) is not compatible with the type of control (Telerik.Web.UI.RadComboBox). "

    Any ideas?

  2. Hafeez
    Hafeez avatar
    1 posts
    Member since:
    Jan 2012

    Posted 23 Feb 2012 Link to this post

    did you find the solution, because i have the same one
  3. Maria Ilieva
    Maria Ilieva avatar
    4017 posts

    Posted 24 Feb 2012 Link to this post

    Hello Chet,

    Review the following online help article: General Troubleshooting. Make sure that you have the Telerik.Web.UI.WebResource handler in your web.config file.

    Also please make sure you are using the right .NET build of the Telerik.Web.UI.dll assembly (.NET 2.0, 3.5 or 4.0 depending on your target framework). The .net version is the last number of the assembly version:
    2009.2 826.35

    Maria Ilieva
    the Telerik team

    Consider using RadControls for ASP.NET AJAX (built on top of the ASP.NET AJAX framework) as a replacement for the Telerik ASP.NET Classic controls, See the product support lifecycle here.

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