RadMenu does not work when upgraded to .Net 4.0

[Carl]

My web site works fine when targeted to ASP.NET 3.5 but when targeted for ASP.NET 4.0, then none of the RadMenus display properly.

Again they display properly when the site is targeted for ASP.NET 3.5 and I have made no changes to the code other than retargeting against ASP.NET 4.0.

Are there any configuration changes that must be made in order to upgrade the RadMenu from 3.5 to 4.0?

[T. Tsonev]

Hello Carl,

Please, check that the Telerik.Web.UI.WebResource.axd handler is registered correctly in web.config

<system.webServer>
    <modules>
        <add name="RadCompression" type="Telerik.Web.UI.RadCompression"/>
        <add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule, Telerik.Web.UI" preCondition="managedHandler"/>
    </modules>
    <handlers>
        <add name="ChartImage.axd_*" path="ChartImage.axd" verb="*" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" preCondition="integratedMode"/>
        <add name="Telerik.Web.UI.SpellCheckHandler.axd_*" path="Telerik.Web.UI.SpellCheckHandler.axd" verb="*" type="Telerik.Web.UI.SpellCheckHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" preCondition="integratedMode"/>
        <add name="Telerik.Web.UI.DialogHandler.aspx_*" path="Telerik.Web.UI.DialogHandler.aspx" verb="*" type="Telerik.Web.UI.DialogHandler, Telerik.Web.UI, Culture=neutral, PublicKeyToken=121fae78165ba3d4" preCondition="integratedMode"/>
        <add name="Telerik.RadUploadProgressHandler.ashx_*" path="Telerik.RadUploadProgressHandler.ashx" verb="*" type="Telerik.Web.UI.Upload.RadUploadProgressHandler, Telerik.Web.UI" preCondition="integratedMode"/>
        <add name="Telerik.Web.UI.WebResource.axd_*" path="Telerik.Web.UI.WebResource.axd" verb="*" type="Telerik.Web.UI.WebResource, Telerik.Web.UI" preCondition="integratedMode"/>
    </handlers>
    <validation validateIntegratedModeConfiguration="false"/>
</system.webServer>

I hope this helps.

Kind regards,
Tsvetomir Tsonev
the Telerik team

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[Carl]

Thanks much. Yes apparently that was the problem, and the web.config snippet that you provided did fix the RadMenu display problem following the upgrade from ASP.NET 3.5 to ASP.NET 4.0.