C# SerialPort.close() bug解决方法

　　最近小了个串口小程序 ,发现在调用 close()方法关闭串口时,程序被挂起.查找了网络资料,网上说这是C#的一个bug.

摸索了半天,结合前人的程序整理出来一段代码,与大家分享.程序只有接收的部分.

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 using System.Threading;
10 using System.IO.Ports;
11 
12 namespace SerialPort_Controls
13 {
14     public partial class Form1 : Form
15     {
16         //该程序可实现 ,串口数据的获取(读取新的一行)  波特率4800 串口1
17         string data;
18         private delegate void SetTextCallback(string text);
19         Thread threadReceive;
20         bool TestOff = true;
21         public Form1()
22         {
23             InitializeComponent();
24         }
25 
26         private void SynReceiveData(object serialPortobj)
27         {          
28              //   this.Text = "正在通信!";
29             while (true)
30             {
31                 data = serialPort1.ReadLine();
32                 SetText(data);
33             }
34         }
35         private void button2_Click(object sender, EventArgs e)
36         {      
37                 if (serialPort1.IsOpen)
38                 {
39                     threadReceive.Abort();
40                     serialPort1.Close();//关闭端口
41                     this.Text = "通信关闭";
42                 }     
43         }
44         private void SetText(string text)
45         {
46             // InvokeRequired需要比较调用线程ID和创建线程ID
47             // 如果它们不相同则返回true
48             if (this.textBox1.InvokeRequired)
49             {
50                 SetTextCallback d = new SetTextCallback(SetText);
51                 this.Invoke(d, new object[] { text });
52             }
53             else
54             {
55                 this.textBox1.Text += text;
56             }
57         }
58         private void button1_Click(object sender, EventArgs e)
59         {
60             try
61             {
62                 serialPort1.Open();
63                 //同步阻塞接收数据线程
64                 threadReceive = new Thread(new ParameterizedThreadStart(SynReceiveData));
65                 threadReceive.Start(serialPort1);
66                 TestOff = false;
67                 this.Text = "正在通信";            
68             }
69             catch (Exception ex)
70             {
71                 MessageBox.Show("打开失败"+ex.Message);
72             }
73         }            
74     }
75 }