public override string ToString() { if (Engine.Instance.IsConnected()) { return(MessagesFormatter.Format(Messages.PingerStatsPending, Utils.FormatTime(LatestCheckDate))); } else { return(MessagesFormatter.Format(Messages.PingerStatsNormal, Invalid.ToString(), Utils.FormatTime(OlderCheckDate), Utils.FormatTime(LatestCheckDate))); } }