public OpenCloseOrder(Employee empl) { employee = empl; products = new ObservableCollection <Product>(); IRepController controller = new RepositoryController(); products = controller.GetDBProducts(); Requiers = controller.GetDBRequiersTo(employee.center); InitializeComponent(); ProductsList.Items.Clear(); RequiersTable.ItemsSource = Requiers; ProductsList.ItemsSource = products; ProductsList.DisplayMemberPath = "Name"; }