Process useshellexecute = true and also want standardOutput=true

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C#

ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo("cmd", "/c " + "myexe");
         Process proc = new Process();
         procStartInfo.WindowStyle = ProcessWindowStyle.Hidden;
         procStartInfo.UseShellExecute = false;
         procStartInfo.RedirectStandardOutput = true;
         //procStartInfo.CreateNoWindow = true;
         proc.StartInfo = procStartInfo;
         proc.Start();
         string output = proc.StandardOutput.ReadToEnd();
         proc.WaitForExit(300);

         richTextBox1.Text=output;

when i run this code myexe generate error and when i change

C#

procStartInfo.UseShellExecute = true;
            procStartInfo.RedirectStandardOutput = false;

then myexe execute ok but i can not get output from the process,

I need both option true it is not execute

C#

procStartInfo.UseShellExecute = true;
            procStartInfo.RedirectStandardOutput = true;

Please solve this

Posted 20-Mar-15 21:09pm

Shaikh Rais

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Dave Kreskowiak · Answer 1 · 2015-03-21T07:15:00

You can't. The options are mutually exclusive.

Turning ShellExecute on tells the ProcessClass to use the ShellExecute API function to execute the command instead of using the CreateProcess function.

If ShellExecute is used to start the process you lose access to the input and output streams. There is no way to get at the streams if launched by ShellExecute.