C#实现串口通讯教程以及源码

C#实现与下位机进行串口通讯，资料里面有相应教程以及代码工程

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
using Microsoft.Win32;
using System.Threading;

namespace SerialPort_Assistant
{
    public partial class Form1:Form
    {
        SerialPort serialPort;
        System.Timers.Timer timerSendAuto;
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void Form1_Load（object sender EventArgs e）
        {
            cbComList.DataSource = GetComList（）;
            cbBaudRateList.DataSource = GetRautBitsList（）;
            cbParityList.DataSource = GetParityList（）;
            cbDataBitsList.DataSource = GetDataBitsList（）;
            cbStopBitsList.DataSource = GetStopBitsList（）;
        }
        private void Form1_FormClosing（object sender FormClosingEventArgs e）
        {
            if （serialPort != null）
                if （serialPort.IsOpen）//澶勪簬鎵撳紑鐘舵€?
                {
                    serialPort.Close（）;
                    serialPort = null;
                }
            if （timerSendAuto != null）
            {
                timerSendAuto.Close（）;
                timerSendAuto.Dispose（）;
            }
        }
        //淇″彿鐏?
        private void picComState_Paint（object sender PaintEventArgs e）
        {
            Graphics g = e.Graphics;
            Brush brush;
            if （serialPort == null）
                brush = Brushes.Red;
            else if （serialPort.IsOpen）
                brush = Brushes.Green;
            else
                brush = Brushes.Red;
            g.FillEllipse（brush e.ClipRectangle）;
        }
        //鎵撳紑銆佸叧闂覆鍙?
        private void btnComOpen_Click（object sender EventArgs e）
        {
            if （serialPort == null）
            {
                serialPort = new SerialPort（）;
                serialPort.RtsEnable = true;
                serialPort.ReceivedBytesThreshold = 1;
                serialPort.ErrorReceived+=new SerialErrorReceivedEventHandler（serialPort_ErrorReceived）;
                serialPort.DataReceived += new SerialDataReceivedEventHandler（serialPort_DataReceived）;
            }
            if （serialPort.IsOpen）//澶勪簬鎵撳紑鐘舵€?
            {
                serialPort.Close（）;
                if （timerSendAuto != null）
                    timerSendAuto.Stop（）;
            }
            else
            {
                try
                {
                    serialPort.PortName = cbComList.Text.Trim（）;
                    serialPort.BaudRate = int.Parse（cbBaudRateList.Text）;
                    serialPort.Parity = （Parity）Enum.Parse（typeof（Parity） cbParityList.Text）;
                    serialPort.DataBits = int.Parse（cbDataBitsList.Text）;
                    serialPort.StopBits = （StopBits）Enum.Parse（typeof（StopBits） cbStopBitsList.Text）;
                    serialPo

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      32768  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\bin\Debug\WindowsApplication1.exe

     文件      36352  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\bin\Debug\WindowsApplication1.pdb

     文件       5632  2005-11-11 22:25  WindowsApplication1\WindowsApplication1\bin\Debug\WindowsApplication1.vshost.exe

     目录          0  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\bin\Debug

     目录          0  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\bin

     文件      10297  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\Form1.cs

     文件      19068  2012-03-29 21:11  WindowsApplication1\WindowsApplication1\Form1.Designer.cs

     文件       5817  2012-03-29 21:11  WindowsApplication1\WindowsApplication1\Form1.resx

     文件        180  2012-03-29 21:11  WindowsApplication1\WindowsApplication1\obj\Debug\SerialPort_Assistant.Form1.resources

     目录          0  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\obj\Debug\TempPE

     文件        842  2012-03-29 21:11  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.csproj.GenerateResource.Cache

     文件      32768  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.exe

     文件      36352  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.pdb

     文件        180  2012-03-29 21:11  WindowsApplication1\WindowsApplication1\obj\Debug\WindowsApplication1.Properties.Resources.resources

     目录          0  2012-03-29 21:16  WindowsApplication1\WindowsApplication1\obj\Debug

     文件        873  2012-03-29 21:17  WindowsApplication1\WindowsApplication1\obj\WindowsApplication1.csproj.FileListAbsolute.txt

     目录          0  2012-03-29 21:11  WindowsApplication1\WindowsApplication1\obj

     文件        481  2012-03-29 21:12  WindowsApplication1\WindowsApplication1\Program.cs

     文件       1186  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\Properties\AssemblyInfo.cs

     文件       2894  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\Properties\Resources.Designer.cs

     文件       5612  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\Properties\Resources.resx

     文件       1104  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\Properties\Settings.Designer.cs

     文件        249  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\Properties\Settings.settings

     目录          0  2012-03-29 21:10  WindowsApplication1\WindowsApplication1\Properties

     文件       3245  2012-03-29 21:12  WindowsApplication1\WindowsApplication1\WindowsApplication1.csproj

     目录          0  2012-03-29 21:16  WindowsApplication1\WindowsApplication1

     文件        946  2012-03-29 21:10  WindowsApplication1\WindowsApplication1.sln

    ..A..H.     12800  2012-03-29 21:17  WindowsApplication1\WindowsApplication1.suo

     目录          0  2012-03-29 21:10  WindowsApplication1

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............此处省略2个文件信息