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Answered Known Issues and Breaking Changes - RadScriptManager

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  • Answer Telerik Admin Master avatar

    Posted on Jun 25, 2010 (permalink)

    Q1 SP2 2010 (Version number: 2010.1.519 and lower)

    Problem: The RadScriptManager is incompatible with the Ajax Control Toolkit (Version number 40412 and higher).

    The following error appears when controls from the ACT are present on the page:
    Microsoft JScript runtime error: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll.

    Solution for .NET 4.0 projects:  Upgrade the RadControls for ASP.NET AJAX version 2010.1.625 or newer.

    Important: Make sure you use the .NET 4.0 build of both Telerik.Web.UI.dll and AjaxControlToolkit.dll

    If upgrade is not an option use the following workaround:
    <telerik:RadScriptManager runat="server" EnableScriptCombine="false" /> 

    Solution for .NET 3.5 projects: Override the references to MicrosoftAjax.js and MicrosoftAjaxWebForms.js to point to the ACT script files.
    <telerik:RadScriptManager runat="server"> 
        <Scripts> 
            <asp:ScriptReference Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" 
                Name="MicrosoftAjax.js" Path="Scripts-40412/MicrosoftAjax.js" /> 
            <asp:ScriptReference Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" 
                Name="MicrosoftAjaxWebForms.js" Path="Scripts-40412/MicrosoftAjaxWebForms.js" /> 
        </Scripts> 
    </telerik:RadScriptManager> 
     

    The script files are obtained by building the ACT from source. Sample project, including the scripts for version 40412, is attached in the related forum post: FIX: RadScriptManager compatibility issues with Ajax Control Toolkit

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