private void SaveKunde() { if (IsEditingProcess == true) { SelectedKunde.VorName = VorName; SelectedKunde.NachName = NachName; SelectedKunde.Geburtsdatum = Geburtsdatum; SelectedKunde.EMail = EMail; SelectedKunde.Strasse = Strasse; SelectedKunde.PLZ = PLZ; SelectedKunde.Ort = Ort; SelectedKunde.Land = Land; SelectedKunde.IsBusinessCustomer = IsBusinessCustomer; SelectedKunde.IsVisible = IsVisible; dh.UpdateCustomer(SelectedKunde); SelectedKunde = null; IsEditingProcess = false; } else { SharedCity customerCity = new SharedCity(PLZ, Ort); SharedKunde newCustomer = new SharedKunde() { KundenId = Guid.NewGuid(), VorName = VorName, NachName = NachName, Geburtsdatum = Geburtsdatum, EMail = EMail, Strasse = Strasse, PLZ = PLZ, Ort = Ort, Land = Land, IsBusinessCustomer = IsBusinessCustomer, IsVisible = IsVisible, Passwort = Passwort }; if (IsBusinessCustomer == true && UID != null) { dh.AddBusinessCustomer(newCustomer, UID); } else { dh.AddCusomter(newCustomer); } } RefreshCustomers(); VorName = ""; NachName = ""; Geburtsdatum = DateTime.MinValue; EMail = ""; Strasse = ""; PLZ = 0; Ort = ""; Land = ""; Passwort = ""; IsVisible = false; IsBusinessCustomer = false; UID = ""; }