public void LoadHistoricalData(string symbol, string interval) { try { var request = new RestRequest($"hi/history/{symbol}/{interval}", Method.GET); var response = Client.Execute(request); if (response.StatusCode == HttpStatusCode.OK) { HistoricalData res = JsonConvert.DeserializeObject <HistoricalData>(response.Content); res.PopulateItemDictionary(); HistoricalDataYahoo = res.ItemDictionary; } } catch (Exception) { } }