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;
using System.IO.Ports;

namespace Demo
{
    public partial class myForm : Form
    {
        //private int[] ReceiveData = new int[4];
        //private int ReceiveDataIndex = 0;

        string ReceiveData;

        public myForm()
        {
            InitializeComponent();
        }

        private void myForm_Load(object sender, EventArgs e)
        {
            comboBoxPortName.SelectedIndex = 0;
            comboBoxBaudRate.SelectedIndex = 5;
            comboBoxParity.SelectedIndex = 0;
            comboBoxDataBits.SelectedIndex = 0;
            comboBoxStopBits.SelectedIndex = 0;
            btnClose.Enabled = false;
            btnOpen.Enabled = true;
            textBoxInformation.Text = "系统初始化成功!\r\n";   
        }
        private void btnOpen_Click(object sender, EventArgs e)
        {
            String myParity;
            String myStopBits;

            myParity = comboBoxParity.SelectedItem.ToString();
            myStopBits = comboBoxStopBits.SelectedItem.ToString();

            //设置端口号
            mySerialPort.PortName = comboBoxPortName.SelectedItem.ToString();
            //设置波特率
            mySerialPort.BaudRate = Convert.ToInt32(comboBoxBaudRate.SelectedItem);

            //设置校验位
            switch (myParity)
            { 
                case "None":
                    mySerialPort.Parity = Parity.None;
                    break;
                case "Even":
                    mySerialPort.Parity = Parity.Even;
                    break;
                case "Odd":
                    mySerialPort.Parity = Parity.Odd;
                    break;
                default:
                    mySerialPort.Parity = Parity.None;
                    break;
            }

            //设置数据位
            mySerialPort.DataBits = Convert.ToInt32(comboBoxDataBits.SelectedItem);

            //设置停止位
            switch(myStopBits)
            {
                case "1":
                    mySerialPort.StopBits = StopBits.One;
                    break;
                case "2":
                    mySerialPort.StopBits = StopBits.Two;
                    break;
                default:
                    mySerialPort.StopBits = StopBits.One;
                    break;

            }
            //采用ASCII编码方式
            mySerialPort.Encoding = Encoding.ASCII;
            //接收到一个字符就出发接收事件