I want to make a GUI for my device to show the value of each sensor. My device send data with this format

`:1*895*123;
:1*987*145;`

`*` is use to separate data from sensors

`;` is for the end of data

`:` is for start of data in next loop

I have variables dot, Rx1 and Ry2 to storing the data and show it on label, but looks like my program didn't works.. here's 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.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        string TestText, Rx1, Ry1, dot;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

    private void button1_Click(object sender, EventArgs e)
    {
        serialPort1.PortName = "COM7";
        serialPort1.BaudRate = 2400;

        serialPort1.Open();
        if (serialPort1.IsOpen)
        {
            button1.Enabled = false;
            button2.Enabled = true;
        }
    }

    private void button2_Click(object sender, EventArgs e)
    {
        if (serialPort1.IsOpen)
        {
            serialPort1.Close();
            button1.Enabled = true;
            button2.Enabled = false;
        }

    }

    private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
    {
        TestText = serialPort1.ReadExisting();
        string[] nameArray = TestText.Split ('*');
        foreach (string name in nameArray)
        {
            dot = nameArray[0];
            Rx1 = nameArray[1];
            Ry1 = nameArray[2];
        }
    }

    private void label3_Click(object sender, EventArgs e)
    {

    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        label3.Text = dot;
        posY.Text = Ry1;
        posX.Text = Rx1;
    }
        //this.Invoke(new EventHandler(DisplayText));
    }

}

```

I'm still new in c# and not so good with it.. so i need help. thanks before.