form1.cs

在vs2005下开发的wince5.0下的serialport控件的使用程序

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;//张中增加的

namespace DeviceApplication5
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        //public delegate void invokedelegate();
        //public void display() { this.textBox2.Text = strReceive; }
        public bool flag = false;
        public string strReceive;
        public string zz = "hello";
        public int i = 0;
        private void button1_Click(object sender, EventArgs e)
        {
        if (!flag)
            { //更改参数 
                serialPort1.PortName = "COM1";
                serialPort1.BaudRate = 9600;
                //serialPort1.Parity = Parity.Odd; //默认是none
                serialPort1.DataBits = 8;
                serialPort1.StopBits = StopBits.One;
                serialPort1.ReadBufferSize = 1024;
                serialPort1.WriteBufferSize = 1024;
                //serialPort1.ReceivedBytesThreshold = 1;
                //serialPort1.WriteTimeout = 1000;
                //打开串口(打开串口后不能修改端口名,波特率等参数,修改参数要在串口关闭后修改) 
                serialPort1.Open();
                flag = serialPort1.IsOpen;
                this.textBox1.Text = zz;
            }
            else
            {
                serialPort1.Close();
                flag = serialPort1.IsOpen;
               this.textBox1.Text = "have been closed";
                

            }
                   
        }

        private void button2_Click(object sender, EventArgs e)
        {
            //发送数据 
            //SendStringData(serialPort1);
            //serialPort1.Write(txtSend.Text);
            //也可用字节的形式发送数据 
            /* SendBytesData(serialPort1);  */
            //serialPort1.WriteLine(zz);//this.textBox1.Text

            i++;
            zz += i;
            this.textBox1.Text = zz;

            string zz2 = "haha";
            //if (serialPort1.DsrHolding) 
            //if (serialPort1.CtsHolding) 
            serialPort1.Write(zz2);//this.textBox1.Text


            i++;
            zz += i;
            this.textBox1.Text = zz;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            this.textBox2.Text = serialPort1.ReadExisting();

            //this.textBox2.Text = strReceive; //serialPort1.ReadExisting();
        }

        private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
           // this.textBox2.Text = zz;
        }

       
    }
}