向已写好的多行插入sql语句中添加字段和值

#region 添加支款方式--向已写好的多行插入sql语句中添加字段和值
    public int A_ZhifuFS(int diqu)
    {
        int i = 0;
        string strData = @"SELECT '492494' rwd,'11' rq,'1' bl,'壹元整' md,'1' mr,'a' kx,'055fa99b-a932-4924-9430-71cf13bb6858' gid 
                            UNION ALL SELECT '492494','1','1','壹元整','1','b','055fa99b-a932-4924-9430-71cf13bb6858' 
                            UNION ALL SELECT '492494','1','1','壹元整1','1','c','055fa99b-a932-4924-9430-71cf13bb6858'";
        if (!string.IsNullOrEmpty(strData))
        {
            //这里执行的是忒么的多条。
            string strSQL = "insert into zab_hetongZK (htzk_rwdid, htzk_day, htzk_bili, htzk_MoneyD, htzk_MoneyR,htzk_Lx,htzk_guID) " + strData;
            _db.ExcuteSqlTwo(strSQL);
            //先去获得两个字段的值   
            ZAB_BLL.GetTime GT = new GetTime();
            string strTime = GT.GetTimes("zab_hetongZK", "htzk_id", null, 0);//获得时间
            //strTime='20131111','20131111'//(两个时间)
            strTime += "," + diqu;//再加上地区

            //更新SQL语句
            int insertCount = strData.ToLower().Replace("select", "select1").Length - strData.Length;//获得select个数
            int selectIndex = 0;
            for (int ii = 0; ii < insertCount; ii++)
            {
                strData = strData.Insert((strData.ToLower().IndexOf("select", selectIndex) + 7), string.Format(" {0},", strTime));//在select后加入值
                selectIndex = strData.ToLower().IndexOf("select", selectIndex) + 7;
            }
            strSQL = "insert into zab_hetongZK (LastEditDate,CreationDate,tb_diqu,htzk_rwdid, htzk_day, htzk_bili, htzk_MoneyD, htzk_MoneyR,htzk_Lx,htzk_guID) " + strData;
            int i = _jtdb.ExcuteSqlTwos(strSQL);//by ltr
        }
        return i;
    }
    #endregion