public void OnActionExecuting(ActionExecutingContext filterContext)
        {
            var descriptor = filterContext.ActionDescriptor;
            if (descriptor is ReflectedActionDescriptor)
            {
                var concreteDescriptor = descriptor as ReflectedActionDescriptor;
                var methodName = concreteDescriptor.MethodInfo.Name;
                throw new Exception(methodName);
            }
            else if (descriptor is ReflectedAsyncActionDescriptor)
            {
                var concreteDescriptor = descriptor as ReflectedAsyncActionDescriptor;
                var methodName = concreteDescriptor.AsyncMethodInfo.Name;
                throw new Exception(methodName);
            }
        }