C# visual studio winforms serial port receive issue

<pre>using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

            // Initialize SerialPort
            serialPort1 = new SerialPort();
            serialPort1.PortName = "COM5"; // Example port name, adjust as needed
            serialPort1.BaudRate = 460800; // Example baud rate, adjust as needed

            // Event handler for receiving data
            
            serialPort1.DataReceived += new SerialDataReceivedEventHandler(ReceiveData);

            serialPort1.Open();
        }

        private void ReceiveData(object sender, SerialDataReceivedEventArgs e)
        {
            // Read data from the serial port
            string data = serialPort1.ReadExisting();

            // Process the data received from the serial port
            // Example: Update UI controls with received data
            this.Invoke(new Action(() =>
            {
                txtReceive.Text += data;
            }));
        }
    }
}