asp.net mvc 5 count registered users and return the number

Question

Hello  am trying to count registered users from my database

so i came up with something like this:

public class HomeController : Controller
{
    private ApplicationDbContext db = new ApplicationDbContext();

    public ActionResult Index()
    {
       if(User.IsInRole("Tutor"))
        {
             ViewData["TutorCount"] = db.Users.Count();
         }
         else
         {
               ViewData["StudentCount"] = db.Users.Count();
          }

        return View();
    }
}

 but doesn't seem to be working 

any help or improvement please

 

i ll apriciate any help.