RadControls for ASP.NET AJAX does not support Razor
views. Only the ASP.NET rendering engine is supported as described in the following help article: Limitations
. You can find integration instructions in the help: Getting Started
By the way have you tried by any chance our Kendo UI Complete for ASP.NET MVC
suite, which is especially designed for MVC environment and is recommended for usage under MVC?
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed