protected virtual void OnRaiseMessageEvent(MessageEventArgs e) { // Make a temporary copy of the event to avoid possibility of // a race condition if the last subscriber unsubscribes // immediately after the null check and before the event is raised. EventHandler<MessageEventArgs> handler = RaiseMessageEvent; // Event will be null if there are no subscribers if (handler != null) { // Use the () operator to raise the event. handler(this, e); } }
private void MessageHandler(object sender, MessageEventArgs e) { rootPage.NotifyUser(e.Message, NotifyType.StatusMessage); }