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  • Status: Solved
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detecting the ouput from the command prompt?

i want to make form so that when i enter values in that form (obviously textbox or other) that go and write on the command prompt like i write 'dir' in the textbox it should write dir in the command prompt and when the command prompt gives the output , the output values should appear in the form fields in some list or something, e.g. if i write 'dir' in the text box it shows all the directories in the drive in the list box on the form, further can i arrange the ouput values in the list box as i want? i will be thankful if you people give me some coding or technique how can i handle this. thanks so much ,  i will be waiting for the answers.
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baburkhan
Asked:
baburkhan
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1 Solution
 
gregoryyoungCommented:
use the process object to start it (System.Diagnostics.Process)

There are Streams available for
StandardInput
StandardOutput
StandardError

Process p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = "test.exe";
p.Start();
p.WaitForExit();
string output = p.StandardOutput.ReadToEnd();


However doing this with Dir is a bad idea as you can use the directory objects and file objects to get all of this information without having to go through all of the trouble to parse the output etc. Take a look at ... System.IO.Directory




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gregoryyoungCommented:
use the process object to start it (System.Diagnostics.Process)

There are Streams available for
StandardInput
StandardOutput
StandardError

Process p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.FileName = "test.exe";
p.Start();
p.WaitForExit();
string output = p.StandardOutput.ReadToEnd();


However doing this with Dir is a bad idea as you can use the directory objects and file objects to get all of this information without having to go through all of the trouble to parse the output etc. Take a look at ... System.IO.Directory




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baburkhanAuthor Commented:
thanks , well what if i do use the 'shell' i can use the system dot come and dot exe exentention like ping but i want them to print the output result at my form not in the console.
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gregoryyoungCommented:
cmd.exe /c internalcommand

cmd.exe /c dir for example ...

other than that just run the exe ..

if its a very long running command you probably want to spawn a seperate thread to read the info as it comes instead of waiting until its done.

using System;
using System.Diagnostics ;
namespace ConsoleApplication4
{
      /// <summary>
      /// Summary description for Class1.
      /// </summary>
      class Class1
      {
            /// <summary>
            /// The main entry point for the application.
            /// </summary>
            [STAThread]
            static void Main(string[] args)
            {
                  Process p = new Process();
                  p.StartInfo.UseShellExecute = false;
                  p.StartInfo.RedirectStandardOutput = true;
                  p.StartInfo.Arguments =  " 192.168.1.1";
                  p.StartInfo.FileName = @"C:\Windows\System32\ping.exe";
                  p.StartInfo.WorkingDirectory = "C:\\" ;
                  p.Start();
                  p.WaitForExit();
                  string output = p.StandardOutput.ReadToEnd();
                  Console.WriteLine("Got Directory info\n" + output) ;
            }
      }
}
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gregoryyoungCommented:
oops got ping nfo not got directory :)
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