mes-client/PLCDataReader/MainWindow.cs

using System;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using ClassFile;

namespace UAS_PLCDataReader
{
    public partial class MainWindow : Form
    {

        ModeBusTCPServer md = new ModeBusTCPServer();

        public MainWindow()
        {
            InitializeComponent();
          
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            CheckForIllegalCrossThreadCalls = false;
            IPHostEntry IpEntry = Dns.GetHostEntry(Dns.GetHostName());
            for (int i = 0; i < IpEntry.AddressList.Length; i++)
            {
                if (IpEntry.AddressList[i].AddressFamily == AddressFamily.InterNetwork)
                    IP.Text = IpEntry.AddressList[i].ToString();
            }
        }

        private void OpenServer_Click(object sender, EventArgs e)
        {
            if (!md.IsOpen)
            {
                md.IP = IP.Text;
                md.Port = Port.Text;
                md.Open();
                OpenServer.Enabled = false;
                Port.Enabled = false;
            }
        }

        private void CloseServer_Click(object sender, EventArgs e)
        {
            if (md.IsOpen)
            {
                OpenServer.Enabled = true;
                Port.Enabled = true;
                md.Close();
            }
        }
    }
}