实例介绍
【实例简介】
c# 写的串口调试助手
【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.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Ports;
namespace MySerialPorts
{
public partial class MainForm : Form
{
public bool OpenButton = true;
public int ireadDataBox = 0;
public MainForm()
{
InitializeComponent();
}
private void MainForm_Load(object sender, EventArgs e)
{
PortCom.DropDownStyle = ComboBoxStyle.DropDownList;
string[] portlist = SerialPort.GetPortNames();
foreach(string port in portlist)
{
PortCom.Items.Add(port);
}
if (PortCom.Items.Count != 0)
{
PortCom.SelectedIndex = 0;
}
baudBox.DropDownStyle = ComboBoxStyle.DropDownList;
baudBox.SelectedIndex = 4;
stopBitBox.DropDownStyle = ComboBoxStyle.DropDownList;
stopBitBox.SelectedIndex = 0;
dataBitBox.DropDownStyle = ComboBoxStyle.DropDownList;
dataBitBox.SelectedIndex = 3;
parityBox.DropDownStyle = ComboBoxStyle.DropDownList;
parityBox.SelectedIndex = 0;
}
public void PortSet()
{
if (serialPort1.IsOpen == false)
{
serialPort1.PortName = PortCom.Text;
}
serialPort1.BaudRate = int.Parse(baudBox.Text);
serialPort1.DataBits = int.Parse(dataBitBox.Text);
switch (stopBitBox.Text)
{
case "1":
serialPort1.StopBits = StopBits.One;
break;
case "1.5":
serialPort1.StopBits = StopBits.OnePointFive;
break;
case "2":
serialPort1.StopBits = StopBits.Two;
break;
default:
break;
}
switch (parityBox.Text)
{
case "无":
serialPort1.Parity = Parity.None;
break;
case "奇校验":
serialPort1.Parity = Parity.Odd;
break;
case "偶校验":
serialPort1.Parity = Parity.Even;
break;
default:
break;
}
}
public void btnComConnet_Click(object sender, EventArgs e)
{
if (PortCom.Items.Count != 0)
{
if (serialPort1.IsOpen == false)
{
PortSet();
try
{
serialPort1.Open();
serialPort1.ReadTimeout = 1000;
serialPort1.WriteTimeout = 1000;
PortCom.Enabled = false;
btnComConnet.Text = "关闭串口";
}
catch
{
MessageBox.Show("打开串口失败");
}
}
else
{
try
{
serialPort1.Close();
PortCom.Enabled = true;
btnComConnet.Text = "打开串口";
}
catch
{
MessageBox.Show("串口关闭失败");
}
}
}
else
{
MessageBox.Show("没有串口，请检查电脑");
}
}
private void btnSendData_Click(object sender, EventArgs e)
{
if (serialPort1.IsOpen)
{
byte[] data = Encoding.Default.GetBytes(SendDataBox.Text);
if (selectHexBox.Checked == true)
{
for(int i=0; i<data.Length; i )
{
byte temp = data[i];
string tempHex = temp.ToString("X2") "";
serialPort1.Write(tempHex);
}
}
else
{
serialPort1.Write(data, 0, data.Length);
}
}
else
{
MessageBox.Show("请先打开串口");
}
}
private void MainForm_Activated(object sender, EventArgs e)
{
if(serialPort1.IsOpen)
{
try
{
string message = serialPort1.ReadLine();
readDataBox.Text = message;
}
catch
{
}
}
}
private void btnClearData_Click(object sender, EventArgs e)
{
SendDataBox.Clear();
}
private void selectHexBox_CheckedChanged(object sender, EventArgs e)
{
//if (serialPort1.IsOpen)
//{
//}
//else
//{
// MessageBox.Show("请先打开串口");
//}
}
public delegate void DeleUpdateTextbox(string dataRe);
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
string dataRe;
byte[] byteRead = new byte[serialPort1.BytesToRead];
DeleUpdateTextbox deleupdatetextbox = new DeleUpdateTextbox(UpdateTextBox);
serialPort1.Read(byteRead, 0, byteRead.Length);
if (DisplayHex.Checked == true)
{
for (int i = 0; i < byteRead.Length; i )
{
byte temp = byteRead[i];
dataRe = temp.ToString("X2") "";
readDataBox.Invoke(deleupdatetextbox, dataRe);
}
}
else
{
dataRe = Encoding.Default.GetString(byteRead);
readDataBox.Invoke(deleupdatetextbox, dataRe);
}
}
private void UpdateTextBox(string dataRe)
{
if(ireadDataBox == 0)
{
this.readDataBox.Text = dataRe;
ireadDataBox ;
}
else
{
readDataBox.AppendText(dataRe);
}
}
private void DisplayHex_CheckedChanged(object sender, EventArgs e)
{
//if (serialPort1.IsOpen)
//{
//}
//else
//{
// MessageBox.Show("请先打开串口");
//}
}
private void ClearRead_Click(object sender, EventArgs e)
{
readDataBox.Clear();
}
private void PortSetValueChange(object sender, EventArgs e)
{
if (serialPort1.IsOpen == true)
{
PortSet();
}
}
private void PortCom_DropDown(object sender, EventArgs e)
{
timer1.Enabled = false;
}
private void timer1_Tick(object sender, EventArgs e)
{
int num = PortCom.SelectedIndex;
PortCom.Items.Clear();
string[] portlist = SerialPort.GetPortNames();
PortCom.DropDownStyle = ComboBoxStyle.DropDownList;
PortCom.Items.AddRange(portlist);
if (PortCom.Items.Count != 0)
{
if ((PortCom.Items.Count-1) < num)
{
PortCom.SelectedIndex = (PortCom.Items.Count-1);
}
else
{
PortCom.SelectedIndex = num;
}
}
}
private void PortCom_DropDownClosed(object sender, EventArgs e)
{
timer1.Enabled = true;
}
}
}
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