private FetchHistory GetHistory() { string jsonFile = HistoryFilePath(); try { if (System.IO.File.Exists(jsonFile)) { if (History == null) { string json = System.IO.File.ReadAllText(jsonFile); History = FetchHistory.FromJson(json); } return(History); } History = new FetchHistory(); } catch (Exception) { History = new FetchHistory(); } return(History); }