C# Process运行cmd命令的异步回显

以下的代码为new Process() 调用cmd命令，并将结果异步回显到Form的例子：

 

 

 

 

 

 

 

 

 

 

 

 

 

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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.Diagnostics;  
10.   
11. namespace CmdCallbackShow  
12. {  
13.     // 1.定义委托  
14.     public delegate void DelReadStdOutput(string result);  
15.     public delegate void DelReadErrOutput(string result);  
16.   
17.     public partial class Form1 : Form  
18.     {  
19.         // 2.定义委托事件  
20.         public event DelReadStdOutput ReadStdOutput;  
21.         public event DelReadErrOutput ReadErrOutput;  
22.   
23.         public Form1()  
24.         {  
25.             InitializeComponent();  
26.             Init();  
27.         }  
28.   
29.         private void Init()  
30.         {  
31.             //3.将相应函数注册到委托事件中  
32.             ReadStdOutput += new DelReadStdOutput(ReadStdOutputAction);  
33.             ReadErrOutput += new DelReadErrOutput(ReadErrOutputAction);  
34.         }  
35.   
36.         private void button1_Click(object sender, EventArgs e)  
37.         {  
38.             // 启动进程执行相应命令,此例中以执行ping.exe为例  
39.             RealAction("ping.exe", textBox1.Text);  
40.         }  
41.           
42.         private void RealAction(string StartFileName, string StartFileArg)  
43.         {  
44.             Process CmdProcess = new Process();  
45.             CmdProcess.StartInfo.FileName = StartFileName;      // 命令  
46.             CmdProcess.StartInfo.Arguments = StartFileArg;      // 参数  
47.   
48.             CmdProcess.StartInfo.CreateNoWindow = true;         // 不创建新窗口  
49.             CmdProcess.StartInfo.UseShellExecute = false;  
50.             CmdProcess.StartInfo.RedirectStandardInput = true;  // 重定向输入  
51.             CmdProcess.StartInfo.RedirectStandardOutput = true; // 重定向标准输出  
52.             CmdProcess.StartInfo.RedirectStandardError = true;  // 重定向错误输出  
53.             //CmdProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;  
54.   
55.             CmdProcess.OutputDataReceived += new DataReceivedEventHandler(p_OutputDataReceived);  
56.             CmdProcess.ErrorDataReceived += new DataReceivedEventHandler(p_ErrorDataReceived);  
57.   
58.             CmdProcess.EnableRaisingEvents = true;                      // 启用Exited事件  
59.             CmdProcess.Exited += new EventHandler(CmdProcess_Exited);   // 注册进程结束事件  
60.   
61.             CmdProcess.Start();  
62.             CmdProcess.BeginOutputReadLine();  
63.             CmdProcess.BeginErrorReadLine();  
64.   
65.             // 如果打开注释，则以同步方式执行命令，此例子中用Exited事件异步执行。  
66.             // CmdProcess.WaitForExit();       
67.         }  
68.   
69.         private void p_OutputDataReceived(object sender, DataReceivedEventArgs e)  
70.         {  
71.             if (e.Data != null)  
72.             {  
73.                 // 4. 异步调用，需要invoke  
74.                 this.Invoke(ReadStdOutput, new object[] { e.Data });  
75.             }  
76.         }  
77.   
78.         private void p_ErrorDataReceived(object sender, DataReceivedEventArgs e)  
79.         {  
80.             if (e.Data != null)  
81.             {  
82.                 this.Invoke(ReadErrOutput, new object[] { e.Data });  
83.             }  
84.         }  
85.   
86.         private void ReadStdOutputAction(string result)  
87.         {  
88.             this.textBoxShowStdRet.AppendText(result + "\r\n");  
89.         }  
90.   
91.         private void ReadErrOutputAction(string result)  
92.         {  
93.             this.textBoxShowErrRet.AppendText(result + "\r\n");  
94.         }  
95.   
96.         private void CmdProcess_Exited(object sender, EventArgs e)  
97.         {  
98.             // 执行结束后触发  
99.         }  
100.     }  
101. }  

原文转自：http://blog.csdn.net/irwin_chen/article/details/7430551