用事务一次处理多条SQL语句

前台调用：

try
{
    //1.查出会员余额
    decimal usermoney = SqlDal.EntityUserinfo.GetModel(int.Parse(cookieUserID)).Money;
    //2.修改余额
    decimal Zmoney = usermoney + moAD.Commission;
    //写SQL语句
    List<string> SQLStringList = new List<string>();
    string clickSql = "insert into [user] (name,age)values('" + 小名 + "','“+4岁+”')";
    string userSql = "update [class] set [name]='" + 幼儿园 + "' where id=" + 2 + " ";
    SQLStringList.Add(clickSql);
    SQLStringList.Add(userSql);
    SqlDal.SqlHelper.ExecuteSqlTran(SQLStringList);

    //数据库操作成功
    //提示
    CommonClass.Xmls xmls1 = new CommonClass.Xmls();
    string path1 = CommonClass.Unit.GetMapPath(@"/Admin/Configs/SysSettingInfo.config");
    string ClickTishi = xmls1.GetXmlNode(path1, "SysSettingInfo/ClickTishi");
    //替换字符
    ClickTishi = ClickTishi.Replace("[$]", moAD.Commission.ToString("0.00"));
    context.Response.Write(ClickTishi); //输出
}
catch (Exception ex)
{
    //Response.Write(ex.Message);
    context.Response.Write("操作失败！" + ex.Message); //输出
}