using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Modbus;
using Modbus.Device;
using Modbus.Data;
using System.Net;
using System.Net.Sockets;

namespace Input_Status
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public const int Port = 502;
        private void timerScan_Tick_1(object sender, EventArgs e)
        {
            try
            {
                byte slaveID = 1;
                ushort startAddress = 0;
                ushort numInputs = ushort.Parse(txtChannelNumber.Text);
                ushort[] inputs = master.ReadInputRegisters(slaveID, startAddress, numInputs);
                
                for (int i = 0; i < numInputs; i++)
                {
                    points.Rows[i][1]=Convert.ToInt32(inputs[i]);//input the value to data table
                }
            }
            catch (Exception ex)
            {
                btDisconnect_Click_1(sender, e);
                MessageBox.Show(ex.Message);
            }
        }
        private TcpClient masterTcpClient;
        private ModbusIpMaster master;
        private void btConnect_Click_1(object sender, EventArgs e)
        {
            int port;
            port = Convert.ToInt16(txtPort.Text);
            masterTcpClient = new TcpClient(txtIP.Text, port);
            master = ModbusIpMaster.CreateIp(masterTcpClient);
            txtChannelNumber.Enabled = false;
            btConnect.Enabled = false;
            btDisconnect.Enabled = true;
            timerScan.Enabled = true;

            ushort numInputs = ushort.Parse(txtChannelNumber.Text);
            for (int i = 0; i < numInputs; i++)
            {
                points.Rows.Add(new object[] { i, 0 });//make a Row;
            }
            
        }

        private void btDisconnect_Click_1(object sender, EventArgs e)
        {
            masterTcpClient.Close();
            btConnect.Enabled = true;
            btDisconnect.Enabled = false;
            timerScan.Enabled = false;
            txtChannelNumber.Enabled = true;
            points.Rows.Clear();//clear row
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            try
            {
                points.Columns.Add(new DataColumn("Channel", typeof(int)));//make a columns
                points.Columns.Add(new DataColumn("Value", typeof(int)));
                dataGrid1.DataSource = points;
                tableStyle.MappingName = "Points";
                dataGrid1.TableStyles.Add(tableStyle);
            }
            catch (Exception ex)
            {
                dataGrid1.TableStyles["Points"].Dispose();
                tableStyle.Dispose();
            }
        }
        System.Data.DataTable points = new System.Data.DataTable("Points");
        DataGridTableStyle tableStyle = new DataGridTableStyle();
        
        private void dataGrid1_CurrentCellChanged(object sender, EventArgs e)
        {

        }


    }
}