public ActionResult AddNew()
 {
     CreateEmployeeViewModel employeeListViewModel = new CreateEmployeeViewModel();
     return View("CreateEmployee", employeeListViewModel);
 }
        public ActionResult SaveEmployee(Employee e, string BtnSubmit)
        {
            switch (BtnSubmit)
            {
                case "Save Employee":
                    if (ModelState.IsValid)
                    {
                        EmployeeBusinessLayer empBal = new EmployeeBusinessLayer();
                        empBal.SaveEmployee(e);
                        return RedirectToAction("Index");
                    }
                    else
                    {
                        CreateEmployeeViewModel vm = new CreateEmployeeViewModel();
                        vm.FirstName = e.FirstName;
                        vm.LastName = e.LastName;
                        if (e.Salary.HasValue)
                        {
                            vm.Salary = e.Salary.ToString();
                        }
                        else
                        {
                            vm.Salary = ModelState["Salary"].Value.AttemptedValue;
                        }

                        return View("CreateEmployee", vm);
                    }
                case "Cancel":
                    return RedirectToAction("Index");
            }
            return new EmptyResult();
        }