It doesn't give any errors or show notifications.
NotificationCompat.Builder builder = new NotificationCompat.Builder(Activity)
.SetAutoCancel(true)
.SetContentIntent(resultPendingIntent)
.SetContentTitle("My Notifications")
.SetContentText(" Work dammit -_-");
NotificationManager notificationManager = (NotificationManager)Activity.GetSystemService(Android.Content.Context.NotificationService);
notificationManager.Notify(ButtonClickNotification, builder.Build());