public IActionResult Index(Semester semester) { ViewBag.Semesters = semesterManager.GetAll(); //save if (ModelState.IsValid) { semester.Action = Actions.ActionInsert; semester.ActionDate = DateTime.Now.ToString("F"); semester.ActionBy = "Me"; semester.IsDelete = 0; ViewData["Message"] = semesterManager.Save(semester); ModelState.Clear(); } else { ViewData["Message"] = Message.Warning("Fill up all fields correctly"); return(View(semester)); } return(View()); }