private void UpdateOrg_Click(object sender, RoutedEventArgs e) { OrgViewModel orVM = OrgBox.SelectedItem as OrgViewModel; EditWindowOrg ew = new EditWindowOrg(orVM); var result = ew.ShowDialog(); if (result == true) { orgService.Update(orVM); ew.Close(); orgs = orgService.GetAll(); OrgBox.ItemsSource = orgs; } }