public ActionResult EditAppointment(int id)
{
ViewBag.DealerId = new SelectList(_dealerManager.GetDealerDropDown(), "Id", "Name");
string loggedInUser = (string)Session["loggedInUser"];
ViewBag.LoggedInUser = loggedInUser;
ViewBag.VehicleId = new SelectList(_vehicleManager.GetUserVehicleDropDown(loggedInUser), "Id", "Model");
ViewBag.ServiceId = new SelectList(_serviceManager.GetServiceDropDown(), "Id", "Name");
var appointment = _appointmentManager.GetUserAppointment(id);
return(View(appointment));
}