c# 使用线程对串口serialPort进行收发数据(四种)
更新时间：2022年07月22日 10:48:28 作者：雪墩墩
本文主要介绍了c# 使用线程对串口serialPort进行收发数据，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧
本文主要介绍了c# 使用线程对串口serialPort进行收发数据，分享给大家，具体如下：
一共写了四种方法，窗体界面都是一样的：
方法一：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace serialPort_0620
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
//不进行跨线程安全检查
System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;
}
private void Form1_Load(object sender, EventArgs e)
{
//检查是否含有串口
string[] str = SerialPort.GetPortNames();
for (int i = 0; i < str.Length; i++)
{
comboBox1.Items.Add(str[i]);
}
button2.Enabled = false;
button3.Enabled = false;
button4.Enabled = false;
dataGridView1.Rows.Add(68);
//标序号
for (int i = 0; i < 69; i++)
{
dataGridView1.Rows[i].Cells[0].Value = i;
}
}
/// <summary>
/// 打开串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
if (serialPort1.IsOpen)
{
MessageBox.Show("串口已打开");
}
else if (comboBox1.Text == "")
{
MessageBox.Show("请选择端口！");
}
else if (textBox1.Text == "")
{
MessageBox.Show("请输入波特率！");
}
else
{
serialPort1.PortName = comboBox1.Text;
serialPort1.BaudRate = Convert.ToInt16(textBox1.Text);
serialPort1.Open();
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = true;
button4.Enabled = true;
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button3_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
serialPort1.WriteLine(textBox2.Text);
string data = serialPort1.ReadLine();
listBox1.Items.Add(data);
int a = listBox1.Items.Count;
listBox1.SelectedIndex = listBox1.Items.Count - 1;
}
}
/// <summary>
/// 接收数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button4_Click(object sender, EventArgs e)
{
}
/// <summary>
/// 关闭串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
serialPort1.Close();
button1.Enabled = true;
}
Thread thread;
/// <summary>
/// 开始
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button5_Click(object sender, EventArgs e)
{
if (false == serialPort1.IsOpen)
{
MessageBox.Show("端口未打开");
}
else
{
thread = new Thread(new ThreadStart(PrintEven));
thread.Start();
}
}
private void PrintEven()
{
while (true)
{
if (textBox2.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
if (serialPort1.IsOpen)
{
serialPort1.WriteLine(textBox2.Text);
string data = serialPort1.ReadLine();
listBox1.Items.Add(data);
listBox1.SelectedIndex = listBox1.Items.Count - 1;
for (int i = 0; i < 47; i++)
{
string[] result = data.Split(',');
dataGridView1.Rows[i].Cells[1].Value = result[i + 1];
dataGridView1.Rows[i].Cells[2].Value = Convert.ToDouble(result[i + 1]) * 5.0 / 1024.0;
}
}
Thread.Sleep(5000);
}
}
}
/// <summary>
/// 结束
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button6_Click(object sender, EventArgs e)
{
thread.Abort();
}
}
}
//不进行跨线程安全检查
方法二：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace serialPort_0620
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
private void Form2_Load(object sender, EventArgs e)
{
string[] str = SerialPort.GetPortNames();
for (int i = 0; i < str.Length; i++)
{
comboBox1.Items.Add(str[i]);
}
button2.Enabled = false;
button3.Enabled = false;
button4.Enabled = false;
dataGridView1.Rows.Add(68);
//标序号
for (int i = 0; i < 69; i++)
{
dataGridView1.Rows[i].Cells[0].Value = i;
}
}
/// <summary>
/// 打开串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
if (serialPort1.IsOpen)
{
MessageBox.Show("串口已打开");
}
else if (comboBox1.Text == "")
{
MessageBox.Show("请选择端口！");
}
else if (textBox1.Text == "")
{
MessageBox.Show("请输入波特率！");
}
else
{
serialPort1.PortName = comboBox1.Text;
serialPort1.BaudRate = Convert.ToInt16(textBox1.Text);
serialPort1.Open();
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = true;
button4.Enabled = true;
}
}
private void button2_Click(object sender, EventArgs e)
{
serialPort1.Close();
button1.Enabled = true;
}
private void button3_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
serialPort1.WriteLine(textBox2.Text);
}
}
private void button4_Click(object sender, EventArgs e)
{
string data = serialPort1.ReadLine();
listBox1.Items.Add(data);
int a = listBox1.Items.Count;
listBox1.SelectedIndex = listBox1.Items.Count - 1;
}
//创建线程
Thread thread;
//建立委托
public delegate void SetTextHandler(string result);
private void setItem(string result)
{
if (listBox1.InvokeRequired == true)
{
SetTextHandler setTextHandler = setItem;
listBox1.Invoke(setTextHandler, new object[] { result });
}
else
{
listBox1.Items.Add(result);
listBox1.SelectedIndex = listBox1.Items.Count - 1;
}
}
private void button5_Click(object sender, EventArgs e)
{
if (false == serialPort1.IsOpen)
{
MessageBox.Show("端口未打开");
}
else
{
thread = new Thread(new ThreadStart(PrintEven));
thread.Start();
}
}
private void PrintEven()
{
while (true)
{
if (textBox2.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
if (serialPort1.IsOpen)
{
serialPort1.WriteLine(textBox2.Text);
string data = serialPort1.ReadLine();
setItem(data);
for (int i = 0; i < 47; i++)
{
string[] result = data.Split(',');
dataGridView1 .Rows[i].Cells[1].Value = result[i + 1];
dataGridView1.Rows[i].Cells[2].Value = Convert.ToDouble(result[i + 1]) * 5.0 / 1024.0;
}
}
Thread.Sleep(5000);
}
}
}
/// <summary>
/// 结束
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button6_Click(object sender, EventArgs e)
{
thread.Abort();
}
}
}
// 建立委托 （参考网上 很规范的写法）
方法三：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace serialPort_0620
{
public partial class Form3 : Form
{
public Form3()
{
InitializeComponent();
}
private void Form3_Load(object sender, EventArgs e)
{
string[] str = SerialPort.GetPortNames();
for (int i = 0; i < str.Length; i++)
{
comboBox1.Items.Add(str[i]);
}
button2.Enabled = false;
button3.Enabled = false;
button4.Enabled = false;
dataGridView1.Rows.Add(68);
//标序号
for (int i = 0; i < 69; i++)
{
dataGridView1.Rows[i].Cells[0].Value = i;
}
}
/// <summary>
/// 打开串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
if (serialPort1.IsOpen)
{
MessageBox.Show("串口已打开");
}
else if (comboBox1.Text == "")
{
MessageBox.Show("请选择端口！");
}
else if (textBox1.Text == "")
{
MessageBox.Show("请输入波特率！");
}
else
{
serialPort1.PortName = comboBox1.Text;
serialPort1.BaudRate = Convert.ToInt16(textBox1.Text);
serialPort1.Open();
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = true;
button4.Enabled = true;
}
}
/// <summary>
/// 关闭串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
serialPort1.Close();
button1.Enabled = true;
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button3_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
serialPort1.WriteLine(textBox2.Text);
}
}
/// <summary>
/// 接收数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button4_Click(object sender, EventArgs e)
{
string data = serialPort1.ReadLine();
listBox1.Items.Add(data);
int a = listBox1.Items.Count;
listBox1.SelectedIndex = listBox1.Items.Count - 1;
}
//创建线程
Thread thread;
/// <summary>
/// 开始
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button5_Click(object sender, EventArgs e)
{
if (false == serialPort1.IsOpen)
{
MessageBox.Show("端口未打开");
}
else
{
thread = new Thread(new ThreadStart(PrintEven));
thread.Start();
}
}
private void PrintEven()
{
while (true)
{
if (textBox2.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
if (serialPort1.IsOpen)
{
serialPort1.WriteLine(textBox2.Text);
string data = serialPort1.ReadLine();
//setItem(data);
listBox1.Invoke(new Action(()=> {
listBox1.Items.Add(data);
listBox1.SelectedIndex = listBox1.Items.Count - 1;
for (int i = 0; i < 47; i++)
{
string[] result = data.Split(',');
dataGridView1.Rows[i].Cells[1].Value = result[i + 1];
dataGridView1.Rows[i].Cells[2].Value = Convert.ToDouble(result[i + 1]) * 5.0 / 1024.0;
}
}));
}
Thread.Sleep(5000);
}
}
}
private void button6_Click(object sender, EventArgs e)
{
}
}
}
//第二种委托 更常用
方法四：
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.Threading;
using System.IO.Ports;
namespace serialPort_0620
{
public partial class Form4 : Form
{
public Form4()
{
InitializeComponent();
}
private void Form4_Load(object sender, EventArgs e)
{
string[] str = SerialPort.GetPortNames();
for (int i = 0; i < str.Length; i++)
{
comboBox1.Items.Add(str[i]);
}
button2.Enabled = false;
button3.Enabled = false;
button4.Enabled = false;
dataGridView1.Rows.Add(68);
//标序号
for (int i = 0; i < 69; i++)
{
dataGridView1.Rows[i].Cells[0].Value = i;
}
}
/// <summary>
/// 打开串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
if (serialPort1.IsOpen)
{
MessageBox.Show("串口已打开");
}
else if (comboBox1.Text == "")
{
MessageBox.Show("请选择端口！");
}
else if (textBox1.Text == "")
{
MessageBox.Show("请输入波特率！");
}
else
{
serialPort1.PortName = comboBox1.Text;
serialPort1.BaudRate = Convert.ToInt16(textBox1.Text);
serialPort1.Open();
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = true;
button4.Enabled = true;
}
}
/// <summary>
/// 关闭串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
serialPort1.Close();
button1.Enabled = true;
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button3_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
serialPort1.WriteLine(textBox2.Text);
}
}
/// <summary>
/// 接收数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button4_Click(object sender, EventArgs e)
{
string data = serialPort1.ReadLine();
listBox1.Items.Add(data);
int a = listBox1.Items.Count;
listBox1.SelectedIndex = listBox1.Items.Count - 1;
}
//创建线程
Thread thread;
/// <summary>
/// 开始
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button5_Click(object sender, EventArgs e)
{
if (false == serialPort1.IsOpen)
{
MessageBox.Show("端口未打开");
}
else
{
thread = new Thread(new ThreadStart(PrintEven));
thread.Start();
}
}
private void PrintEven()
{
while (true)
{
if (textBox2.Text == "")
{
MessageBox.Show("请输入要发送的数据");
}
else
{
if (serialPort1.IsOpen)
{
listBox1.Invoke(new Action(set));
}
Thread.Sleep(5000);
}
}
}
void set()
{
serialPort1.WriteLine(textBox2.Text);
string data = serialPort1.ReadLine();
listBox1.Items.Add(data);
listBox1.SelectedIndex = listBox1.Items.Count - 1;
for (int i = 0; i < 47; i++)
{
string[] result = data.Split(',');
dataGridView1.Rows[i].Cells[1].Value = result[i + 1];
dataGridView1.Rows[i].Cells[2].Value = Convert.ToDouble(result[i + 1]) * 5.0 / 1024.0;
}
}
/// <summary>
/// 结束
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button6_Click(object sender, EventArgs e)
{
thread.Abort();
}
}
}
//建立委托，invoke的第二种写法
到此这篇关于c# 使用线程对串口serialPort进行收发数据(四种)的文章就介绍到这了,更多相关c# 串口serialPort收发数据内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！
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