private void buttonOrders_Click(object sender, RoutedEventArgs e)
        {
            var wnd = new OrdersWindow();

            wnd.Owner = this;
            wnd.Show();
        }
 private void buttonOrders_Click(object sender, RoutedEventArgs e)
 {
     var wnd = new OrdersWindow();
     wnd.Owner = this;
     wnd.Show();
 }