Telerik Controls not available in SharePoint

[Adam]

I used the Telerik Control Panel from my SharePoint 2010 server to install the latest ASP.NET AJAX controls. However, the controls are not available when adding Web parts to a SharePoint page. Also, I created a new visual Web part from within Visual Studio 2010 and added a RadComboBox. I then deployed this Web part to my SharePoint server. Visual Studio displays a message that it successfully deployed the Web part. However, after attempting to add my newly deployed Web part to a page, I receive the error "An unexpected error has occurred...."

Is there something beyond the Telerik Control Panel automated installation that is required to make the Telerik AJAX controls available to SharePoint in custom Web parts and on their own?

[Andrey]

Hi Adam,

Thank you for contacting us.

Looking through your account's download history it looks like you downloaded the RadControls for ASP.NET AJAX installer only containing our developer tools (ASP.NET Controls, Visual Studio integration, etc.), whereas you need to our SharePoint web parts installer.

The SharePoint web parts installer is not currently available through our Control Panel application. You can download it (as well as various other product files) through the download list on the "Your Account" page on our website. Here's a direct link for your convenience:
Download RadControls for ASP.NET AJAX Version: 2012.3 1016 (Oct 17, 2012)

Regards,
Andrey
the Telerik team

[Adam]

I downloaded the library that you indicated but there is not an install file. Do I need to perform the installation of Telerik controls for SharePoint 2010 manually? Currently, after installing Rad Controls for ASP.NET Ajax on my server, I do not see any Web parts available within SharePoint. ??

[Andrey]

Hello,

Looking through your account's download history it looks like you downloaded the correct installation package this time (Telerik_AJAX_Controls_2012_3_1016_for_SharePoint_2010_Dev.msi). It is extremely peculiar that you cannot see the webparts in SharePoint. There should be no additional setup required on your part. Could you check if the RadControls-related Site Collection features are enabled?

You could also download our webparts directly through the manual installation .zip. You can check how you should be deploying it in our documentation:
Installing RadEditor & RadGrid Web Parts on SharePoint 2010

Regards,
Andrey
the Telerik team

[Pistle]

We had the same issue when we used the Visio Web Access web part on one of our sites with a custom master page made the same way.  To fix it, we moved the SPWebPartManager control in the masterpage from the HEAD section into the BODY section of the html masterpage.  (The HTML because it is linked to the .master file)
This is what we moved into the BODY:
        <!--MS:<SharePoint:AjaxDelta id="DeltaSPWebPartManager" runat="server">-->
            <!--MS:<WebPartPages:SPWebPartManager runat="server">-->
            <!--ME:</WebPartPages:SPWebPartManager>-->
        <!--ME:</SharePoint:AjaxDelta>-->