SqlBulkCopy批量添加数据

var sqlconn = ConfigurationManager.ConnectionStrings["SQLConnStringRead"].ConnectionString;
            string sql = "select * from TicketRecord where 1=2";
            //Database db = new Database(sqlconn);
            //var ds = db.QueryExtend(sql);

            DataTable ImportDT = SqlHelper.ExecuteDataTable(SqlHelper.SQLConnStringRead, CommandType.Text, sql);
            for (int i = ; i <= count; i++)
            {
                DataRow dr = ImportDT.NewRow();
                var tn = "SK".PadRight( - i.ToString().Length, '') + i;
                dr["TicketNumber"] = tn;
                dr["SceneryId"] = ;
                dr["SceneryName"] = "";
                dr["EnterpriseId"] = ;
                dr["EnterpriseName"] = "";
                dr["BatchNumber"] = "";
                dr["SerialId"] = "";
                dr["ParentId"] = ;
                dr["TicketClassId"] = ;
                dr["TicketClassName"] = "";
                dr["TicketTypeId"] = ;
                dr["TicketTypeName"] = "";
                dr["RetailPrice"] = ;
                dr["Discount"] = ;
                dr["PeopleCount"] = ;
                dr["TotalAmount"] = ;
                dr["RefundPackageNum"] = ;
                dr["RefundNum"] = ;
                dr["RefundAmount"] = ;

                dr["FreePersonCount"] = ;
                dr["ValidStartTime"] = "2015-08-12";
                dr["ValidEndTime"] = "2015-08-12";
                dr["SaleDate"] = "2015-08-12";
                dr["UseNumber"] = ;
                dr["HasCheckedNum"] = ;
                dr["PayType"] = ;
                dr["PayStatus"] = ;
                dr["TicketStatus"] = ;
                dr["DrawWay"] = ;
                dr["PrintType"] = ;
                dr["PackageNum"] = ;
                dr["HostName"] = "";
                dr["RowStatus"] = ;
                dr["CreatorId"] = ;
                dr["CreateBy"] = "";
                dr["CreateOn"] = "2015-08-12";
                dr["UpdateId"] = ;
                dr["UpdateBy"] = "";
                dr["UpdateOn"] = "2015-08-12";
                dr["Prefix"] = "";
                dr["Postfix"] = "";
                dr["MidNum"] = "";
                dr["Remark"] = "";
                dr["BookMobile"] = "";
                dr["ActivateDate"] = "2015-08-12";
                dr["InsidePrice"] = ;

                ImportDT.Rows.Add(dr);
            }
            SqlConnectionStringBuilder sqlcsb = new SqlConnectionStringBuilder();
            sqlcsb.ConnectionString = ConfigurationManager.ConnectionStrings["SQLConnStringRead"].ConnectionString;
            SqlConnection SqlConn = new SqlConnection(sqlcsb.ConnectionString);
            SqlConn.Open();
            SqlBulkCopy bulkCopy = new SqlBulkCopy(SqlConn); ;
            bulkCopy.BatchSize = count;
            bulkCopy.BulkCopyTimeout = ;
            bulkCopy.DestinationTableName = "TicketRecord";
            bulkCopy.WriteToServer(ImportDT);
            bulkCopy.Close();
            SqlConn.Close();