public virtual event EventHandler <PostPriceChangedEventArgs> PostPriceChanged; // The event
public virtual void OnPostPriceChanged(PostPriceChangedEventArgs e) // Notify register objects
{
if (PostPriceChanged != null)
{
PostPriceChanged(this, e); // delagate invoke()
}
}
public void InboxMessage(object sender, PostPriceChangedEventArgs p)
{
string content = string.Format("Post ID: {0} price has changed. The last Price was {1}. \n" +
" Now new Price is {2}. Good Offer!!!", p.ID, p.LastPrice, p.NewPrice);
BoxMessages.Add(new UserMessageBox("System", "Post price changed!!!", content));
Console.WriteLine("Add new message to " + ToString() + "\'s UserMessageBox: ");
Console.WriteLine(" Content: " + content);
Console.WriteLine();
}
