public ActionResult Index(Course course) { if (ModelState.IsValid) { CoursesManager coursesManager = new CoursesManager(); course.CourseCode = course.CourseCode.ToUpper(); course = CheckInput(course); string result = coursesManager.InsertNewCourse(course); ViewBag.Departments = GetDepartmentForDropDown(); ViewBag.Semesters = GetSemesterForDropDown(); ViewData["Message"] = result; ModelState.Clear(); return(View()); } else { ViewData["Message"] = ""; ViewBag.Departments = GetDepartmentForDropDown(); ViewBag.Semesters = GetSemesterForDropDown(); return(View()); } }