public ActionResult SaveEmployee(Employee e, string BtnSubmit)
        {
            switch(BtnSubmit)
            {
                case "Save Employee":
                    if (ModelState.IsValid)
                    {
                        EmployeeBusinessLayer ebl = new EmployeeBusinessLayer();
                        ebl.SaveEmployee(e);
                        return RedirectToAction("Index");
                    }
                    else
                    {
                        return View("AddEmployee");
                    }
                case "Cancel":
                    return RedirectToAction("Index");
            }

            return new EmptyResult();
        }
        public ActionResult Index()
        {
            EmployeeBusinessLayer ebl = new EmployeeBusinessLayer();
            EmployeeListViewModel elvm = new EmployeeListViewModel();
            elvm.Employees = new List<EmployeeViewModel>();

            foreach (Employee e1 in ebl.GetEmployees())
            {
                EmployeeViewModel evm = new EmployeeViewModel();

                evm.EmployeeName = e1.FirstName + " " + e1.LastName;
                evm.Salary = e1.Salary.ToString("C");

                if (e1.Salary > 15000)
                    evm.SalaryColor = "yellow";
                else
                    evm.SalaryColor = "green";

                elvm.Employees.Add(evm);
            }

            return View("EmployeeView",elvm);
        }