Without Breakpoint Data Not saved In Database?

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C#

I am developed a application in C# using Gsm Modem,i read data from comport using Port DataReceived Event and check what data received in port,according to that data i saved that data in database.When i used break point data is saved in database but without break point data is not saved.
code For DataReceived:

public void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {        
        try
        {            
            if (e.EventType == SerialData.Chars)
            {
            //cmdValue = "";
            SerialPort sp = (SerialPort)sender;
            //s = sp.ReadExisting();            
            int nBytesToRead = sp.BytesToRead;
            char[] receivedData = new char[nBytesToRead];
            sp.Read(receivedData, 0, nBytesToRead);
            for (int i = 0;i<nbytestoread mode="hold" />            {
                s += receivedData[i];
                cmdValue += receivedData[i];
            }
            if (s != "")
            {
                reciveValue=s;
                FunSaveValue(reciveValue);
                if (s != "\r" && s!="\r\n+C")
                {
                    s = "";
                }
            }
                receiveNow.Set();
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }

Check Received Data:

public void FunSaveValue(string reciveValue)
    {
        //System.Threading.Thread.Sleep(1000);         
        if (reciveValue.Contains("\r\nRING\r\n"))
        {           
          ShortMessageCollection messages = new ShortMessageCollection();                      
          var m = Regex.Match(reciveValue, "RING[^\\+]*\\+CLIP:\\s*\"(?<phone>[^\"]*)\",(\\d+),\"([^\"]*)\",(\\w*),\"(\\w*)\",(\\w*)");          
            while (m.Success)
            {
                ShortMessage msg = new ShortMessage();               
                msg.Index = m.Groups[1].Value;
                msg.Status = m.Groups[2].Value;
                msg.Sender = m.Groups[3].Value;
                msg.Alphabet = m.Groups[4].Value;
                msg.Sent = m.Groups[5].Value;
                msg.Message = m.Groups[6].Value;              
                messages.Add(msg);
                m = m.NextMatch();
                string recievedData = ExecCommand(port, "AT+CHLD=0", 300, "No phone connected");
            }         
        }
        else if (reciveValue.Contains("\r\nNO CARRIER\r\n"))
        {
        }
        if (reciveValue.EndsWith("\r\nOK\r\n") || reciveValue.EndsWith("\r\n> ") || reciveValue.EndsWith("\r\nERROR\r\n"))
        {            
        }

        if (reciveValue.Contains("\r\n+CMT:"))
        {
            ShortMessageCollection messages = new ShortMessageCollection();
            messages = ParseReadMsg(reciveValue);
            foreach (ShortMessage msg in messages)
            {             
                string[] words = msg.Message.Split(' ');
                if (words[0].ToString() == "REL")
                {
                    string[] msgSent = msg.Sent.Split('+');
                    int chkSender = 0;
                    int msgIndex = Convert.ToInt32(msg.Index);
                    chkSender = FunChkSender(msg.Sender);
                    if (chkSender == 1)
                    {
                        if (words[2].ToString() == "SYSTEM")
                        {
                            string msgBdy = "";
                            string[] pillarId = { };
                            for (int i = 2; words[i] != null; i++)
                            {
                                if (words[i].ToString() != "PILLAR")
                                    msgBdy = string.Concat(msgBdy, words[i].ToString(), " ");
                                else
                                {
                                    pillarId = words[i + 1].Split(':');
                                    break;
                                }
                            }
                            str = "select MessageBody from SmsTransaction where SmsDatetIme='" + msgSent[0].ToString() + "' AND Pillerid='" + pillarId[1].ToString() + "'";
                            int recExist = dc.Record_Exist_Confirm(str);
                            if (recExist == 0)
                            {
                                str = "insert into SmsTransaction(SmsDatetIme,Pillerid,Status,MessageBody)values('" + msgSent[0].ToString() + "','" + pillarId[1].ToString() + "','" + string.Concat(words[4].ToString(), " ", words[5].ToString()) + "','" + msgBdy.ToString() + "')";
                                int t = dc.insertupdate(str);                               
                            }
                        }
                        else
                        {
                            string[] pillerId = words[9].Split(':');
                            string msgBody = string.Concat(words[2].ToString(), " ", words[3].ToString(), " ", words[4].ToString(), " ", words[5].ToString());
                            str = "select MessageBody from SmsTransaction where SmsDatetIme='" + msgSent[0].ToString() + "' AND Pillerid='" + pillerId[1].ToString() + "'";
                            int recExist1 = dc.Record_Exist_Confirm(str);
                            if (recExist1 == 0)
                            {
                                str = "insert into SmsTransaction(SmsDatetIme,OperatorId,Pillerid,Status,MessageBody)values('" + msgSent[0].ToString() + "','" + words[7].ToString() + "','" + pillerId[1].ToString() + "','" + words[3].ToString() + "','" + msgBody.ToString() + "')";
                                int t = dc.insertupdate(str);                                
                            }
                        }
                    }
                }
            }           
        }
         if (reciveValue.ToString() != "")
        {
            ShortMessageCollection messages = new ShortMessageCollection();           
            Regex r = new Regex(@"\r\n\+CDS: (\d+),(\d+),""(.+)"",(\d+),""(.+)"",""(.+)"",(\d+)");
            // string[] words = s.Split(',');
            Match m = r.Match(reciveValue);
            while (m.Success)
            {
                ShortMessage msg = new ShortMessage();                
                msg.Index = m.Groups[1].Value;
                msg.Status = m.Groups[2].Value;
                msg.Sender = m.Groups[3].Value;
                msg.Alphabet = m.Groups[4].Value;
                msg.Sent = m.Groups[5].Value;
                msg.Message = m.Groups[6].Value;
                string[] delDate = msg.Message.Split('+');               
                str = "select MsgNo from MsgSentReport where MobileNo='" + msg.Sender.ToString() + "' AND MsgNo='" + msg.Status.ToString() + "' AND MsgStatus='Delivered'";
                int recExist = dc.Record_Exist_Confirm(str);
                if (recExist == 0)
                {
                    str = "insert into MsgSentReport(MobileNo,MsgNo,MsgDateTime,MsgStatus)values('" + msg.Sender.ToString() + "','" + msg.Status.ToString() + "','"+(delDate[0].ToString())+"','Delivered')";
                    int t = dc.insertupdate(str);
                }
                messages.Add(msg);
                m = m.NextMatch();
            }
        }       
    }</phone>