recieveing and splitting serial data from Arduino in C#

[auting82]

Hi, I am fairly new to C# coding so be gentle :laugh: I am trying to receive measurement data from a two sensors DHT11 and soimoisture sensor connected to my Arduino. At this stage I just want to receive the raw measurement data and represent them in separate text boxes. I have almost managed it but I am getting some errors. More specifically I get this error: System.ArgumentOutOfRangeException: 'Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index' Here is my code:

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.IO.Ports;

namespace PlantMonitoringApp
{
public partial class Form1 : Form
{

    private SerialPort myport;
    private DateTime datetime;
    private string in\_data;

    public Form1()
    {
        InitializeComponent();
    }

    private void start\_btn\_Click(object sender, EventArgs e)
    {
        myport = new SerialPort();
        myport.BaudRate = 9600;
        myport.PortName = port\_name\_tb.Text;
        myport.Parity = Parity.None;
        myport.DataBits = 8;
        myport.StopBits = StopBits.One;
        myport.DataReceived += Myport\_DataReceived1;
        try
        {
            myport.Open();
            time\_text\_box.Text = "";

        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Error");
        }

        // timer1.Start();


    }
    void Myport\_DataReceived1(object sender, SerialDataReceivedEventArgs e)
    {

        in\_data = myport.ReadLine();

        this.Invoke(new EventHandler(displaydata\_event));
        /\*String dataFromArduino = myport.ReadLine();
        String\[\] dataTempHumidMoisture = dataFromArduino.Split();
        int Temperature = (int)(Math.Round(Convert.ToDecimal(dataTempHumidMoisture\[0\]), 0));
        //int Humidity = (int)(Math.Round(Convert.ToDecimal(dataTempHumidMoisture\[1\]), 0));
       // int SoilMoisture= (int)(Math.Round(Convert.ToDecimal(dataTempHumidMoisture\[2\]), 0));
        txtTemperature.Text = Temperature.ToString() + "C";
       // txtHumidity.Text = Humidity.ToString() + "%";
        //txtHumidity.Text = SoilMoistu