Running an executable programmatically .NET

Question

I would like to execute a program in .NET server side code.

So far I have this:

    Process p = new Process();  
    p.StartInfo.FileName = "myProgram.exe";
    p.StartInfo.Arguments = " < parameter list here > ";
    p.Start();
    p.Close();

This is a console program. What happens is that console is opened and closed repeatedly without stopping.

where is the loop? You might want to start the process asynchronously? — jdehaan
– jdehaan, Commented Jul 19, 2010 at 20:55
That code can't cause a loop unless your program is called "myprogram.exe". — John Saunders
– John Saunders, Commented Jul 19, 2010 at 20:56

kay.one · Accepted Answer · 2010-07-20 22:23:32Z

3

You want,

Process p = new Process();  
    p.StartInfo.FileName = "myProgram.exe";
    p.StartInfo.Arguments = " < parameter list here > ";
    p.Start();
    p.WaitForExit();

what happens in your code is you start the process and you close it right away, what you need is call WaitForExit() which actually waits for the process to close on its own,

To Print the output before the app closes:

Process p = new Process();  
p.StartInfo.FileName = "myProgram.exe";
p.StartInfo.Arguments = " < parameter list here > ";
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.Start();
p.WaitForExit();
Console.WriteLine(p.StandardOutput.ReadToEnd());

edited Jul 20, 2010 at 22:23

answered Jul 20, 2010 at 3:25

kay.one

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1 Comment

kay.one Over a year ago

in that case I'm thinking that the application that you are trying to run is terminating on it's own, try the code I added to my answer to get the output before the window closes.

Josh Stodola · Accepted Answer · 2010-07-19 20:55:19Z

2

Check out the BackgroundWorker class. Here is a more detailed walkthrough/example of its use.

answered Jul 19, 2010 at 20:55

Josh Stodola

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2 Comments

dev.e.loper Over a year ago

I'm not sure if this will help. There is no time consuming computation. This is a simple console program. When I run it, the console is opened and closed repeatedly without stopping.

dev.e.loper Over a year ago

Tried this. In DoWork function I'm creating and starting a process. RunWorkerCompleted function never gets called. I'm guessing it has something to do with me running a process in BackworkerProcess. There are no errors or exceptions thrown as far as I see.

driis · Accepted Answer · 2010-07-19 20:55:44Z

0

That code will not produce an infinite loop. It will fire up a program, and then immediately close the process. (You might not want to close it, but rather wait for the process to end).

answered Jul 19, 2010 at 20:55

driis

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2 Comments

Hans Passant Over a year ago

Close() only releases resources, it doesn't terminate the process.

dev.e.loper Over a year ago

This is a console program. What happens is that console is opened and closed repeatedly without stopping.

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