private void OnOrderChangedInRepository(object sender, OrderChangedEventArgs e)
{
LogEvent.OrderChanged.Log(e.OldOrder.Id);
orders.Remove(orders.First(o => o.Id == e.OldOrder.Id));
orders.Add(new OrderViewModel(e.NewOrder));
}
protected void OnOrderChanged(OrderChangedEventArgs e)
{
if (OrderChanged != null)
OrderChanged(this, e);
}