实例介绍
【实例简介】需要先打开串口 才能使用该工具
【实例截图】
【核心代码】
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 CShapeSerialPort
{
public partial class MainFrom : Form
{
private SerialPortUtil comPort = new SerialPortUtil();
private System.Timers.Timer timer = new System.Timers.Timer();
public MainFrom()
{
InitializeComponent();
}
private void COMOpen()
{
if (!comPort.IsOpen)
{
try
{
comPort.OpenPort();
btnOpenClose.Text = "关闭串口";
label7.Text = comPort.PortName "已打开";
label7.ForeColor = System.Drawing.Color.Green;
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
if (!comPort.IsOpen)
{
btnOpenClose.Text = "打开串口";
label7.Text = " ";
}
}
}
private void COMSend()
{
try
{
if (checkBoxHEX.Checked)
{
comPort.WriteData(SerialPortUtil.HexToByte(txtSend.Text));
}
else
{
comPort.WriteData(txtSend.Text);
}
}
catch (System.Exception ex)
{
//MessageBox.Show("发送错误：" ex.Message);
}
}
private void COMClose()
{
if (comPort.IsOpen)
{
try
{
//comPort.DiscardBuffer();
//timer1.Enabled = false;
//chkBoxSendOntime.Checked = false;
comPort.ClosePort();
btnOpenClose.Text = "打开串口";
label7.Text = comPort.PortName "已关闭";
label7.ForeColor = System.Drawing.Color.Red;
}
catch (System.Exception ex)
{
btnOpenClose.Text = "关闭串口";
label7.Text = " ";
MessageBox.Show(ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
private void MainFrom_Load(object sender, EventArgs e)
{
//comboBox设置数据
SerialPortUtil.SetPortNameValues(comboBoxDKH);
if (comboBoxDKH.Items.Count == 0)
{
MessageBox.Show("未扫描到该计算机的COM口，请添加硬件后重新打开程序！", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.Close();
}
SerialPortUtil.SetBauRateValues(comboBoxBTL);
SerialPortUtil.SetDataBitsValues(comboBoxSJW);
SerialPortUtil.SetParityValues(comboBoxXYW);
SerialPortUtil.SetStopBitValues(comboBoxTZW);
comboBoxDKH.SelectedIndex = 0;
comboBoxBTL.SelectedIndex = 8;
comboBoxSJW.SelectedIndex = 3;
comboBoxXYW.SelectedIndex = 0;
comboBoxTZW.SelectedIndex = 1;
comboBoxDKH.SelectedIndexChanged = (o, ex) => { COMClose(); comPort.PortName = comboBoxDKH.SelectedItem.ToString(); COMOpen(); };
comboBoxBTL.SelectedIndexChanged = (o, ex) => { COMClose(); comPort.BaudRate = (SerialPortBaudRates)Convert.ToInt32(comboBoxBTL.SelectedItem); COMOpen(); };
comboBoxSJW.SelectedIndexChanged = (o, ex) => { COMClose(); comPort.DataBits = (SerialPortDatabits)Convert.ToInt32(comboBoxSJW.SelectedItem.ToString()); COMOpen(); };
comboBoxXYW.SelectedIndexChanged = (o, ex) => { COMClose(); comPort.Parity = (Parity)(comboBoxXYW.SelectedIndex); COMOpen(); };
comboBoxTZW.SelectedIndexChanged = (o, ex) => { COMClose(); comPort.StopBits = (StopBits)(comboBoxTZW.SelectedIndex); COMOpen(); };
comPort.DataReceived = new DataReceivedEventHandler(comPort_DataReceived);
comPort.Error = new SerialErrorReceivedEventHandler(comPort_Error);;
//COMOpen();
comPort.PortName = comboBoxDKH.SelectedItem.ToString();
comPort.BaudRate = (SerialPortBaudRates)Convert.ToInt32(comboBoxBTL.SelectedItem);
comPort.DataBits = (SerialPortDatabits)Convert.ToInt32(comboBoxSJW.SelectedItem.ToString());
comPort.Parity = (Parity)(comboBoxXYW.SelectedIndex);
comPort.StopBits = (StopBits)(comboBoxTZW.SelectedIndex);
chkBoxSendOntime.Checked = false;
checkBoxHEX.Checked = true;
txtTime.Text = "200";
timer.Elapsed = new System.Timers.ElapsedEventHandler(timer_Elapsed);
}
void comPort_Error(object sender, SerialErrorReceivedEventArgs e)
{
MessageBox.Show(e.ToString());
}
void comPort_DataReceived(DataReceivedEventArgs e)
{
this.txtRecv.BeginInvoke(
new MethodInvoker(()=>{
if (checkBoxHEX.Checked)
{
this.txtRecv.AppendText(SerialPortUtil.ByteToHex(e.DataRecv));//输出到主窗口文本控件
}
else
{
this.txtRecv.AppendText(System.Text.Encoding.Default.GetString(e.DataRecv));//输出到主窗口文本控件
}
}
)
);
}
private void btnOpenClose_Click(object sender, EventArgs e)
{
if (comPort.IsOpen)
{
COMClose();
}
else
{
COMOpen();
}
}
private void btnSendOnce_Click(object sender, EventArgs e)
{
COMSend();
}
private void timer1_Tick(object sender, EventArgs e)
{
if (chkBoxSendOntime.Checked)
{
if (txtTime.Text=="")
{
timer1.Enabled = false;
MessageBox.Show("请输入时间！");
}
else
{
if (comPort.IsOpen)
{
COMSend();
}
}
}
}
void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
//throw new NotImplementedException();
if (chkBoxSendOntime.Checked)
{
if (txtTime.Text == "")
{
timer1.Enabled = false;
MessageBox.Show("请输入时间！");
}
else
{
if (comPort.IsOpen)
{
COMSend();
}
}
}
}
private void chkBoxSendOntime_CheckedChanged(object sender, EventArgs e)
{
if (chkBoxSendOntime.Checked)
{
if (txtTime.Text == "")
{
MessageBox.Show("请输入时间！","提示信息",MessageBoxButtons.OK,MessageBoxIcon.Information);
chkBoxSendOntime.Checked = false;
}
else
{
try
{
//timer1.Interval = Convert.ToInt32(txtTime.Text);
//timer1.Enabled = true;
timer.Interval = Convert.ToInt32(txtTime.Text);
timer.Enabled = true;
}
catch (System.Exception ex)
{
//timer1.Enabled = false;
timer.Enabled = false;
MessageBox.Show("时间输入错误：" ex.Message);
}
}
}
}
private void btnClear_Click(object sender, EventArgs e)
{
txtRecv.Text = "";
}
private void txtTime_TextChanged(object sender, EventArgs e)
{
try
{
// timer1.Interval = Convert.ToInt32(txtTime.Text);
// timer1.Enabled = true;
timer.Interval = Convert.ToInt32(txtTime.Text);
timer.Enabled = true;
}
catch (System.Exception ex)
{
//timer1.Enabled = false;
timer.Enabled = false;
MessageBox.Show("时间输入错误：" ex.Message);
}
}
}
}
好例子网口号：伸出你的我的手 — 分享！
小贴士
感谢您为本站写下的评论，您的评论对其它用户来说具有重要的参考价值，所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字，对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙，所以请不要反馈意义不大的重复字符，也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明，或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦，又没人会搭理，于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享，对搜索内容的合法性不具有预见性、识别性、控制性，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论平台是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定，若资源存在侵权或相关问题请联系本站客服人员，点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论