RadScriptManager (.NET 4.5) incompatible with AspNet.ScriptManager.jQuery

[Igor]

Hello, I recently upgraded my Telerik project from .NET 4.0 to 4.5.1.
I' m having a lot of issues with jQuery.
Basically the following piece of markup 

    <telerik:RadScriptManager ID="_scriptManager" runat="server">
        <Scripts>
            <asp:ScriptReference Name="jquery" />
        </Scripts>
    </telerik:RadScriptManager>

in .NET 4.0 renders the jquery include, but in .NET 4.5 renders nothing, no jquery.

The only workaround I fond is to use the embedded Telerik jQuery.

    <telerik:RadScriptManager ID="_scriptManager" runat="server">
    </telerik:RadScriptManager>
    <script type="text/javascript">
        window.jQuery = window.$ = $telerik.$;
    </script>

[Igor]

Sorry, this is the correct workaround

    <telerik:RadScriptManager ID="_scriptManager" runat="server">
        <Scripts>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />  
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />  
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
        </Scripts>
    </telerik:RadScriptManager>
    <script type="text/javascript">
        window.jQuery = window.$ = $telerik.$;
    </script>

[Slav]

Hi Igor,

Indeed, the jquery mapping that is added with the AspNet.ScriptManager.jQuery package is cleared by the RadScriptManager on the page in .NET 4.5 projects.

We will post a help article with information about handling such scenarios. Until it is live you can also try installing the following package - https://www.nuget.org/packages/Microsoft.AspNet.ScriptManager.WebForms, then configuring RadScriptManager as shown below:

<telerik:RadScriptManager ID="_scriptManager" runat="server" EnableEmbeddedjQuery="false">
    <Scripts>
        <asp:ScriptReference Name="jquery" />
        <asp:ScriptReference Name="WebForms.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebForms.js" />
        <asp:ScriptReference Name="WebUIValidation.js" Assembly="System.Web" Path="~/Scripts/WebForms/WebUIValidation.js" />
    </Scripts>
</telerik:RadScriptManager>

This should allow you to use the version of jQuery that comes with AspNet.ScriptManager.jQuery, however the same version will be used by the Telerik controls as well. If the version of the external jQuery is different than the one that is included in the Telerik controls you may run into problems with their functionality.

Regards,
Slav
Telerik