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Editorial Team
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Asked: 2026-05-20T10:37:31+00:00

I decided to do something really simple – A WinForms application with a text

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I decided to do something really simple –

A WinForms application with a text box for C# code and a button. When the button is clicked, I save the content of the text box to a temp .cs file, invoke the csc.exe (Process.Start()) with the file name as parameter so that it is compiled. This is assuming I set the PATH variables and everything.

When the csc.exe outputs syntax errors and stuff, how can I get it back and show it in another text box in my app?

NOTE My aim is not to just “complie C# code from within my app (in whichever way possible)”.. it is to get the output of csc.exe

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1 Answer

  1. Editorial Team

    You need to redirect stdout and stderr.

    It goes along the lines of:

    process = new Process();
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.FileName = command;
process.StartInfo.Arguments = arguments;

    Then reading from process.StandardInput. I can’t really remember if this is all you need.

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