public virtual ActionResult StanjeVpisa(int id)
 {
     var vpis = solaService.Vpis(id);
     var model = new VpisEditModel(vpis);
     return View(model);
 }
        public virtual ActionResult ShraniStanjeVpisa(VpisEditModel model)
        {
            var vpis = solaService.Vpis(model.VpisId);
            model.Vpis(ref vpis);
            solaService.SaveChanges();

            return Redirect("/TangoSola/Vpisani/" + vpis.TecajId);
        }