public Window2() { InitializeComponent(); del = new DeliveryMen(); clientvm = new ClientViewModel(); this.lol.ItemsSource = clientvm.GetAllDeliveryMen().Select(m => m.ID); // listView.ItemsSource = dal.GetDistributionList(del); this.DataContext = del; myvvm = new PdfViewModel(this); this.buttGrid.DataContext = myvvm; }