CMD.EXE from c#.net application

Question

I want to call cmd.exe from C#  application and to change the directory from current directory.I have written code for this which is given below

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                      //sample code //

using System;

using System.Collections.Generic;

using System.Text;

using System.Diagnostics;

using System.ComponentModel;

namespace Console_sample

{

class Program

{

public void OpenWithArguments()

{

ProcessStartInfo startInfo = new ProcessStartInfo("CMD.exe");

Process p = new Process();

startInfo.RedirectStandardInput = true;

startInfo.UseShellExecute = false;

startInfo.RedirectStandardOutput = true;

startInfo.RedirectStandardError = true;

p = Process.Start(startInfo);

p.StandardInput.WriteLine(@"Echo on");

p.StandardInput.WriteLine(@"dir " + @"C:");

p.StandardInput.WriteLine(@"chdir " + @"C:\WINDOWS ");

p.StandardInput.WriteLine(@"EXIT");

string output = p.StandardOutput.ReadToEnd();

string error = p.StandardError.ReadToEnd();

p.WaitForExit();

Console.Write(output);

p.Close();

Console.Read();

}

static void Main(string[] args)

{

Program myProcess = new Program();

myProcess.OpenWithArguments();

}

}

}

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In the console I got following output

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D:\Program\Console_sample\bin\Debug>Echo on

D:\Program\Console_sample\bin\Debug>dir C:
 Volume in drive C has no label.
 Volume Serial Number is F06C-447B

 Directory of C:\Program Files\Microsoft Visual Studio 8\Common7\IDE

04/24/2008  05:17 PM    <DIR>          .
04/24/2008  05:17 PM    <DIR>          ..
03/26/2008  04:02 PM    <DIR>          1033

D:\Program\Console_sample\bin\Debug>chdir C:\WINDOWS

D:\Program\Console_sample\bin\Debug>EXIT

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where my directory is not chaged while the DIR command got perfectly executed .How can i fix this ?Even i notice that when i write  p.standardInput.writeline(@"date"); it doean't show me the date also.please provide solutuion for this .if anyone has sample code for executing cmd command from C# .net will be very useful.

 

any help appreciated

thanks in advance

 

 

 

 

 

Answer 1

You could simply use System.IO.Directory.SetCurrentDirectory to set the current working directory. See this link for details.

Answer 2

In addition to the suggestion to use System.IO.Directory.SetCurrentDirectory instead (which you really should do). You are missing the /d switch in your chdir command. The /d switch is needed because you are changing both directory and drive.

Answer 3

i want this code run in backgroud means prompt should not come i write

 

 p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; but it is not running .it is not hiding command prompt

Answer 4

Just use this

p.startInfo.CreateNoWindow = true;