程序调试时可以正常执行指定的操作，直接运行时则不行，求助

Question

程序调试时可以正常执行指定的操作，直接运行时则不行，求助我想让程序在收到数据后插入数据库或者写入XML，在调试中设置断点，每次都能命中，都能成功写入
但是每次直接运行时就不能写入这是什么奇葩问题啊，求助！
谢谢各位

Answer 1

代码是这样的private static string insertStr = "";
        private static string usingStr = "";
        private static string RealName = "";
        private static void DataReceviedHandler(
                        object sender,
                        SerialDataReceivedEventArgs e)
        {
            SerialPort sp = (SerialPort)sender;
            string indata = sp.ReadExisting();
            insertStr += indata;            if (insertStr.Length > 12)
            {
                string insertStr2 = insertStr.Split('o')[0];
                insertStr = insertStr2;
            }            foreach (char ch in insertStr)
            {
                if (ch != 'E' && ch != 'S'&& ch != 'o')
                {
                    usingStr += ch;
                }
            }
            
            switch (usingStr)
            {
                case "2011072069\0":
                    RealName = "a";
                    break;
                case "2010073065\0":
                    RealName = "b";
                    break;
                default:
                    break;
            }            if (RealName != "")
            {
                if (insertStr.Contains("E"))
                {
                    string Sqlcom = "INSERT INTO tb_out(RealName, Num, Date) VALUES('" + RealName + "'," + "'" + usingStr + "', GetDate());";
                    ExecuteSQL(Sqlcom);
                    usingStr = string.Empty;
                    insertStr = string.Empty;
                    RealName = string.Empty;
                }
                if (insertStr.Contains("S"))
                {
                    string Sqlcom = "INSERT INTO tb_in(RealName, Num, Date) VALUES('" + RealName + "'," + "'" + usingStr + "', GetDate());";
                    ExecuteSQL(Sqlcom);
                    usingStr = string.Empty;
                    insertStr = string.Empty;
                    RealName = string.Empty;
                }
            }
            
        }        public static void ExecuteSQL(string SQLwords)
        {
            //执行插入、删除、更新的函数
            string myConStr = "user id=sa; password=sa;";
            myConStr += "Initial Catalog = AccessControl; Server=PC2012050719LFQ;";
            //myConStr += "Connect Timeout = 10";            SqlConnection myCon = new SqlConnection(myConStr);
            myCon.Open();
            SqlCommand myCom = new SqlCommand();
            myCom.CommandType = CommandType.Text;
            myCom.CommandText = SQLwords;
            myCom.Connection = myCon;
            try
            {
                myCom.ExecuteNonQuery();
            }
            catch
            {
            }
            myCon.Close();
        }