c# serialport sample（1）

http://blog.csdn.net/wuyazhe/archive/2010/05/17/5598945.aspx 博客文章的配套代码。希望能帮助到你。

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;
using System.Text.Regularexpressions;

namespace SerialportSample
{
    public partial class SerialportSampleForm : Form
    {
        private SerialPort comm = new SerialPort（）;
        private StringBuilder builder = new StringBuilder（）;//避免在事件处理方法中反复的创建，定义到外面。
        private long received_count = 0;//接收计数
        private long send_count = 0;//发送计数

        public SerialportSampleForm（）
        {
            InitializeComponent（）;
        }

        //窗体初始化
        private void Form1_Load（object sender EventArgs e）
        {
            //初始化下拉串口名称列表框
            string[] ports = SerialPort.GetPortNames（）;
            Array.Sort（ports）;
            comboPortName.Items.AddRange（ports）;
            comboPortName.SelectedIndex = comboPortName.Items.Count > 0 ? 0 : -1;
            comboBaudrate.SelectedIndex = comboBaudrate.Items.IndexOf（“9600“）;

            //初始化SerialPort对象
            comm.NewLine = “\r\n“;
            comm.RtsEnable = true;//根据实际情况吧。

            //添加事件注册
            comm.DataReceived += comm_DataReceived;
        }

        void comm_DataReceived（object sender SerialDataReceivedEventArgs e）
        {
            int n = comm.BytesToRead;//先记录下来，避免某种原因，人为的原因，操作几次之间时间长，缓存不一致
            byte[] buf = new byte[n];//声明一个临时数组存储当前来的串口数据
            received_count += n;//增加接收计数
            comm.Read（buf 0 n）;//读取缓冲数据
            builder.Clear（）;//清除字符串构造器的内容
            //因为要访问ui资源，所以需要使用invoke方式同步ui。
            this.Invoke（（EventHandler）（delegate
            {
                //判断是否是显示为16禁止
                if （checkBoxHexView.Checked）
                {
                    //依次的拼接出16进制字符串
                    foreach （byte b in buf）
                    {
                        builder.Append（b.ToString（“X2“） + “ “）;
                    }
                }
                else
                {
                    //直接按ASCII规则转换成字符串
                    builder.Append（Encoding.ASCII.GetString（buf））;
                }
                //追加的形式添加到文本框末端，并滚动到最后。
                this.txGet.AppendText（builder.ToString（））;
                //修改接收计数
                labelGetCount.Text = “Get:“ + received_count.ToString（）;
            }））;
        }

        private void buttonOpenClose_Click（object sender EventArgs e）
        {
            //根据当前串口对象，来判断操作
            if （comm.IsOpen）
            {
                //打开时点击，则关闭串口
                comm.Close（）;
            }
            else
            {
                //关闭时点击，则设置好端口，波特率后打开
                comm.PortName = comboPortName.Text;
                comm.BaudRate = int.Parse（comboBaudrate.Text）;
                try
                {
                    comm.Open（）;
                }
         

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2010-05-16 02:19  SerialportSample\
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\
     文件         890  2010-05-16 02:19  SerialportSample\SerialportSample.sln
     文件       19456  2010-05-17 01:20  SerialportSample\SerialportSample.suo
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\bin\
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\bin\Debug\
     文件       15872  2010-05-17 01:19  SerialportSample\SerialportSample\bin\Debug\SerialportSample.exe
     文件       26112  2010-05-17 01:19  SerialportSample\SerialportSample\bin\Debug\SerialportSample.pdb
     文件       11600  2010-05-17 01:00  SerialportSample\SerialportSample\bin\Debug\SerialportSample.vshost.exe
     文件         490  2010-03-17 22:39  SerialportSample\SerialportSample\bin\Debug\SerialportSample.vshost.exe.manifest
     文件        6110  2010-05-17 01:19  SerialportSample\SerialportSample\Form1.cs
     文件       15770  2010-05-17 01:06  SerialportSample\SerialportSample\Form1.Designer.cs
     文件        5817  2010-05-17 01:06  SerialportSample\SerialportSample\Form1.resx
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\obj\
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\obj\x86\
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\obj\x86\Debug\
     文件        3408  2010-05-17 00:44  SerialportSample\SerialportSample\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        6277  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         324  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\GenerateResource.read.1.tlog
     文件         812  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\GenerateResource.write.1.tlog
     文件         937  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\SerialportSample.csproj.FileListAbsolute.txt
     文件       15872  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\SerialportSample.exe
     文件       26112  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\SerialportSample.pdb
     文件         180  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\SerialportSample.Properties.Resources.resources
     文件         180  2010-05-17 01:19  SerialportSample\SerialportSample\obj\x86\Debug\SerialportSample.SerialportSampleForm.resources
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\obj\x86\Debug\TempPE\
     文件         523  2010-05-16 03:24  SerialportSample\SerialportSample\Program.cs
     目录           0  2010-05-16 02:19  SerialportSample\SerialportSample\Properties\
     文件        1468  2010-05-16 02:19  SerialportSample\SerialportSample\Properties\AssemblyInfo.cs
     文件        2858  2010-05-16 02:19  SerialportSample\SerialportSample\Properties\Resources.Designer.cs
     文件        5612  2010-05-16 02:19  SerialportSample\SerialportSample\Properties\Resources.resx
............此处省略3个文件信息