dataset不顯示毫秒，處理時間數據時，還原它

//數據庫中有一條數據是

2011-11-17 09:48:26.199

在dataset裏，他顯示是

2011-11-17 09:48:26

現在來顯示它未顯示的毫秒數：過程如下

  

DataSet ds = new DataSet();
            string selectdata = @"SELECT TMPLOGID,
                                  APP,
                                  FILENAME,
                                  OPERATOR,
                                  FILESIZE,
                                  AUTHOR,
                                  LOGTIME,
                                  OTHER,
                                  ISANALYSIS
                                FROM TB_TMPLOG ";
            ds = getDataSetBySQL(selectdata);
            DataTable t = ds.Tables[0];
            DataRow rowT = t.Rows[0];
            object obj = rowT[6];
            DateTime dt = Convert.ToDateTime(obj);
            string strTime = dt.Year + "-" + dt.Month + "-" + dt.Day + " " + dt.TimeOfDay;

//結果：strTime=2011-11-17 09:48:26.1990000