protected virtual void OnPriceChanged(PriceChangedEventArgs e)
{
if (PriceChanged != null)
{
PriceChanged(this, e);
}
}
private static void Stock_PriceChanged1(object sender, PriceChangedEventArgs e)
{
Console.WriteLine("MSFT: {0} {1}", e.LastPrice, e.NewPrice);
}