大家来看一下这个跨库事务，有什么问题？

protected void Button1_Click(object sender, EventArgs e)
        {
            string msg = "";

            Dictionary<string, List<ExecuteCMD>> oExecuteCMDMapList = new Dictionary<string, List<ExecuteCMD>>();

            List<ExecuteCMD> oExecuteCMDList1 = new List<ExecuteCMD>();

            ExecuteCMD oExecuteCMD1 = new ExecuteCMD();
            oExecuteCMD1.CommandText = "INSERT INTO TEST1(VALUE1,VALUE2,VALUE3,VALUE4,VALUE5) VALUES('1','1','1','1','1')";
            oExecuteCMD1.oParameter = null;
            oExecuteCMDList1.Add(oExecuteCMD1);

            ExecuteCMD oExecuteCMD2 = new ExecuteCMD();
            oExecuteCMD2.CommandText = "INSERT INTO TEST1(VALUE1,VALUE2,VALUE3,VALUE4,VALUE5) VALUES('1','1','1','1','1')";
            oExecuteCMD2.oParameter = null;
            oExecuteCMDList1.Add(oExecuteCMD2);

            oExecuteCMDMapList.Add("server=192.168.25.195;uid=sa;password=sasasa;database=DB1", oExecuteCMDList1);


            List<ExecuteCMD> oExecuteCMDList2 = new List<ExecuteCMD>();

            ExecuteCMD oExecuteCMD11 = new ExecuteCMD();
            oExecuteCMD11.CommandText = "INSERT INTO TEST1(VALUE1,VALUE2,VALUE3,VALUE4,VALUE5) VALUES('2','2','2','2','2')";
            oExecuteCMD11.oParameter = null;
            oExecuteCMDList2.Add(oExecuteCMD11);

            ExecuteCMD oExecuteCMD22 = new ExecuteCMD();
            oExecuteCMD22.CommandText = "INSERT INTO TEST1(VALUE1,VALUE2,VALUE3,VALUE4,VALUE5) VALUES('2','2','2','2','2')";
            oExecuteCMD22.oParameter = null;
            oExecuteCMDList2.Add(oExecuteCMD22);

            oExecuteCMDMapList.Add("server=192.168.25.195;uid=sa;password=sasasa;database=DB2", oExecuteCMDList2);


            bool bTrue = false;
            bTrue = DoExecute(oExecuteCMDMapList, out msg);
            switch (bTrue)
            {
                case true:
                    this.Response.Write("操作成功！");
                    break;
                case false:
                    this.Response.Write("操作失败：" + msg);
                    break;
            }
        }


        /// <summary>
        /// 执行跨库事务操作
        /// </summary>
        /// <param name="oExecuteCMDMapList">多库的连接字符串，每个库的执行命令</param>
        /// <param name="msg">返回的信息</param>
        /// <returns>TRUE:成功/FALSE:失败</returns>
        public bool DoExecute(Dictionary<string, List<ExecuteCMD>> oExecuteCMDMapList, out string msg)
        {
            bool bTrue = false;

            try
            {
                foreach (var oExecuteCMDList in oExecuteCMDMapList)
                {
                    if (oExecuteCMDList.Key == "")
                    {
                        msg = "数据连接串为空！";
                        return bTrue;
                    }

                    foreach (var oExecuteCMD in oExecuteCMDList.Value)
                    {
                        if (oExecuteCMD.CommandText == "")
                        {
                            msg = "执行的命令不能为空！";
                            return bTrue;
                        }
                    }
                }
            }
            catch (Exception Ex)
            {
                msg = Ex.Message;
                return bTrue;
            }

            List<SqlConnection> oSqlConnectionList = new List<SqlConnection>();
            List<SqlCommand> oSqlCommandList = new List<SqlCommand>();
            try
            {
                foreach (var oExecuteCMDList in oExecuteCMDMapList)
                {
                    SqlConnection oSqlConnection = new SqlConnection(oExecuteCMDList.Key);
                    oSqlConnectionList.Add(oSqlConnection);

                    SqlCommand oSqlCommand = new SqlCommand();
                    oSqlCommandList.Add(oSqlCommand);

                    oSqlConnection.Open();
                    SqlTransaction oSqlTransaction = oSqlConnection.BeginTransaction();

                    oSqlCommand.Connection = oSqlConnection;
                    oSqlCommand.Transaction = oSqlTransaction;

                    foreach (var oExecuteCMD in oExecuteCMDList.Value)
                    {
                        oSqlCommand.CommandText = oExecuteCMD.CommandText;
                        if (oExecuteCMD.oParameter != null)
                        {
                            foreach (var o in oExecuteCMD.oParameter)
                            {
                                oSqlCommand.Parameters.Add(o);
                            }
                        }
                        oSqlCommand.ExecuteNonQuery();
                        oSqlCommand.Parameters.Clear();
                    }
                }
                foreach (SqlCommand oTempSqlCommand in oSqlCommandList)
                {
                    oTempSqlCommand.Transaction.Commit();
                }

                bTrue = true;
                msg = "成功";
            }
            catch (Exception Ex)
            {
                foreach (SqlCommand oTempSqlCommand in oSqlCommandList)
                {
                    oTempSqlCommand.Transaction.Rollback();
                }
                msg = Ex.Message;
            }
            finally
            {
                for (int i = 0; i < oSqlConnectionList.Count; i++)
                {
                    oSqlCommandList[i].Dispose();
                    oSqlConnectionList[i].Close();
                    oSqlConnectionList[i].Dispose();
                }
            }
            return bTrue;
        }

        /// <summary>
        /// 操作命令
        /// </summary>
        public class ExecuteCMD
        {
            /// <summary>
            /// 命令
            /// </summary>
            public string CommandText { set; get; }
            /// <summary>
            /// 参数
            /// </summary>
            public Parameter[] oParameter { set; get; }
        }