AllowJsonGetAttribute for .Net MVC

AllowJsonGetAttribute.cs

// Originally from RealWorldWpDev.codeplex.com : @matthidinger

using System.Web.Mvc;

public class AllowJsonGetAttribute : ActionFilterAttribute
{
    public override void OnResultExecuting(ResultExecutingContext filterContext)
    {
        var result = filterContext.Result as JsonResult;
        if(result != null)
        {
            result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
        }
    }
}