public string GetDateFormat(string p_user_id, int p_lang) { SystemParameter sys = new SystemParameter(p_user_id, p_lang); sys.key01 = "DATE_FORMAT"; int rtn = sys.GetDetail(); if (rtn == ComConst.FAILED) { sys.data_char = "yyyy/MM/dd"; } sys.data_char = CheckDateFormat(sys.data_char); return(sys.data_char); }