public ActionResult ShowAvailableClasses(ClassModel viewModel)
        {
            int selectedClass = viewModel.ClassID;

            return RedirectToAction("ClassView", "ChooseCourse", new { selectedItem = selectedClass });
        }
        public ActionResult Index(ClassModel myView)
        {
            int SelectedItem = myView.ClassID;

            return RedirectToAction("ViewResults", "EvaluationResults", new { SelectedItem = SelectedItem });
        }