ReadMe.txt

TO USE:
Simply tack on .ToMvcClientTemplate() to the end of the outer-most MVC helper 
that you're trying to turn into a template.

In this example: http://demos.kendoui.com/web/grid/detailtemplate.html, you 
would add it after the last ToClientTemplate() that occurs before the script 
section with the "function databound()" handler.

Note that returning an HtmlString instead of an MvcHtmlString will ensure you
don't have to call @Html.Raw() in your template to bypass the AntiXss encoding
that will be performed when MvcHtmlString.ToString() is called.

Feel free to lean hard on Telerik to get their ToClientTemplate() code changed 
to include this technique.

KendoMvcExtensions.cs

using Kendo.Mvc.UI;
using System.Web;
using System.Web.Mvc;
using System.Web.Security.AntiXss;
using System.Web.Util;

namespace Your.Namespace.Here
{
    public static class KendoMvcExtensions
    {

        public static IHtmlString ToMvcClientTemplate(this MvcHtmlString mvcString)
        {
            if (HttpEncoder.Current.GetType() == typeof (AntiXssEncoder))
            {
                var initial = mvcString.ToHtmlString();
                var corrected = initial.Replace("\\u0026", "&").Replace("%23", "#").Replace("%3D", "=").Replace(" ", " ");
                return new HtmlString(corrected);
            }

            return mvcString;
        }
    }
}