public static Traderate ToObject(string str) { if (str == null || str.Equals(String.Empty)) { return(null); } JsonData jd = JsonMapper.ToObject(str); return(new Traderate((int)jd[Param.TID], (long)jd[Param.NUM_IID], Traderate.StringToROLE((string)jd[Param.ROLE]), (string)jd[Param.NICK], Traderate.StringToRateResult((string)jd[Param.RESULT]), StringUtil.StringToDateTime((string)jd[Param.CREATED]), (string)jd[Param.CONTENT], (string)jd[Param.REPLY])); }