public PersonalInfoViewModel()
 {
     _instance                    = new Kunde("Henrik Andersen", "Hillerødvej 1", "*****@*****.**", 3400, 48484848, new List <Sæde>());
     Instance.Betaling            = new Betaling(4545454545454545, 666, new DateTime(), "Henrik Andersen");
     _valgteForestillingViewModel = ForestillingViewModel.Instance;
     _instance.BestilteSæder      = _valgteForestillingViewModel.SalViewModel.ValgteSæder;
     VoksenBilleter               = ForestillingViewModel.SalViewModel.ValgteSæder.Count;
     _seniorBilleter              = 0;
     _børneBilleter               = 0;
     _medlem = _instance.Betaling.Billet.Medlemsskab;
 }
 public KvitteringViewModel()
 {
     _kunde = PersonalInfoViewModel.Instance;
     _forestillingViewModel = ForestillingViewModel.Instance;
     _forestillingViewModel.Forestilling.AlleBookinger.AlleKunder.Add(_kunde);
 }
 public ForestillingViewModel()
 {
     _forestilling = MainViewModel.selectedForestilling;
     _salViewModel = new SalViewModel(_forestilling.Sal, _forestilling.AlleBookinger);
     _instance     = this;
 }