Time stamp missing

Question

I'm trying to display the data received on textbox. But I realized that when data were being received on Br@y terminal it look fine (eg. 14:02:33.43 > T 11 22.32) but running on the software the time stamp is missing.

Am I missing out anything which lead to this?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.OleDb;
using System.IO;

namespace SerialCom
{
public partial class Form1 : Form
{
    string RxString;  //Variable

    public Form1()
    {
        InitializeComponent();
    }


    private void btnStart_Click(object sender, EventArgs e)
    {
        serialPort1.PortName = "COM4";
        serialPort1.BaudRate = 9600;

        serialPort1.Open();
        if (serialPort1.IsOpen)
        {
            btnStart.Enabled = false;
            btnStop.Enabled = true;
            txtData.ReadOnly = false;
        }

     }

    private void btnStop_Click(object sender, EventArgs e)
    {
        if (serialPort1.IsOpen)
        {
            serialPort1.Close();
            btnStart.Enabled = true;
            btnStop.Enabled = false;
            txtData.ReadOnly = true;
        }

    }

    private void txtData_KeyPress(object sender, KeyPressEventArgs e)
    {

        if (!serialPort1.IsOpen) return;  // If the port is closed, don't try to send a character.
        char[] buff = new char[8];  // If the port is Open, declare a char[] array with one element.
        buff[0] = e.KeyChar;  // Load element 0 with the key character.
        serialPort1.Write(buff, 0, 1);  // Send the one character buffer.
        e.Handled = true;// Set the KeyPress event as handled so the character won't
        // display locally. If you want it to display, omit the next line.
    }

    private void DisplayText(object sender, EventArgs e)
    {
        txtData.AppendText(RxString);
    }

    private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
    {
        RxString = serialPort1.ReadExisting();
        this.Invoke(new EventHandler(DisplayText));

        StreamWriter MyStreamWriter = new StreamWriter(@"c:\testing.txt",true);  //True tell SW to append to file instead of overwriting
        MyStreamWriter.Write(RxString);
        MyStreamWriter.Flush();
        MyStreamWriter.Close();
    }

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        if (serialPort1.IsOpen)
            serialPort1.Close();
    }

}

}

Answer 1

Basically, I was wrong by saying that the time stamp is originally included in the data i received.. I need to add in the time stamp on my own.. This was to act as a record of when did i actually received the following data.

As a result, what's missing is this

string time = DateTime.Now.ToString("dd/MM/yyyy HH:mm:ss.ff")

Hope this helps people who are struggling with the problem too.