public NotificationPopup() { notificationsForm = new NotificationsForm(notificationList); InitializeComponent(); Opacity = 0; fadeTimer = new Timer { Interval = 100 }; btnNewest.Click += OnNewestClick; btnNewer.Click += OnNewerClick; btnOlder.Click += OnOlderClick; btnOldest.Click += OnOldestClick; btnXofY.Click += OnXofYClick; Disposed += OnDisposed; }