private static void Main(string[] args)
{
var shipper = new ItemShipper();
var controller = new ItemController("Default ", shipper, ShippingCallback);
controller.PerformShippment();
}
public ItemController(string startingMessage, ItemShipper shipper,
ItemShipper.ShippingNotificationDelegate notificationCallback)
{
Message = startingMessage;
ShippingProvider = shipper;
shipper.NotificationCallback += notificationCallback;
shipper.NotificationCallback += NotifyShippingCallback;
}