// GET api/excelsqlexcute/5
        public string Get(string id)
        {
            try
            {
                if (id == null || id == "undefind" || id == "")
                {
                    return("{\"result\":\"ERROR\",\"data\":[{\"status\":\"Kiểm tra lại userid\"}]}");
                }

                var     user = id;
                general gn   = new general();
                dicAppSet = gn.ReadAppseting();
                var lst            = JObject.Parse(_dicPara_exsql["StrColumnNames_SqlExcute" + user]).SelectToken("kq").ToString();
                var LstColumnNames = JsonConvert.DeserializeObject <List <ListColumnExport> >(lst);

                if (dicAppSet == null || dicAppSet.Count == 0)
                {
                    return("{\"result\":\"ERROR\",\"data\":[{\"status\":\"Đọc appsetting lỗi\"}]}");
                }

                gnSqlNomal gns       = new gnSqlNomal();
                var        dicConfig = gns.convertConfigToDic(_dicPara_exsql["StrConfig_SqlExcute" + user]);
                var        dicPara   = gns.convertParaToDic(_dicPara_exsql["StrPara_SqlExcute" + user]);
                _dicPara_exsql.Remove("StrPara_SqlExcute" + user);
                _dicPara_exsql.Remove("StrConfig_SqlExcute" + user);
                _dicPara_exsql.Remove("StrColumnNames_SqlExcute" + user);

                gnSql   sql = new gnSql();
                gnExcel exx = new gnExcel();

                var paraSql = gn.ConvertDicToSqlPara(dicPara);

                var ds = sql.DynamicSelectDataset(dicConfig["namesql"], (paraSql == null ?null: paraSql), CommandType.StoredProcedure, dicAppSet[dicConfig["connstr"].ToLower()]);
                if (ds == null || ds.Tables.Count == 0)
                {
                    return("{\"result\":\"OK\",\"data\":[{\"status\":\"Không có dữ liệu xuất excel\"}]}");
                }
                for (int i = 0; i < ds.Tables[0].Columns.Count; i++)
                {
                    ds.Tables[0].Columns[i].ColumnName = ds.Tables[0].Columns[i].ColumnName.ToLower();
                }
                exx.ExporttoExcel(new List <string>(), ds.Tables[0], LstColumnNames, dicConfig.ContainsKey("namefile") ? dicConfig["namefile"] : "" + DateTime.Now.ToString("dd-MM-yyyy"), 1, false, true);
                return("");
            }
            catch (Exception ex)
            {
                return("{\"result\":\"ERROR\",\"data\":[{\"status\":\"" + ex.Message.Replace("\n", "") + "\"}]}");
            }
        }