What is the use of NonActionAttribute in Asp.Net MVC?

[NonAction] public ActionResult About() { ViewBag.Message = "Your application description page."; return View(); }

If you decorated action method with [NonAction] attribute you can't access that through URL.We can restrict this by using private also,but in some scenarios we need public access so by decarating with [NonAction] attribute we can prevent.

This is indicate that a controller method is not an action method. Example: [NonAction] public void IndexTest() { // Do some thing } this is very useful attribute when visibility of controller 's method cannot be changed to private.

This is the action filter attribute, used to indicate this method of controller is not an action method.