CODEWITHSUNDEEP
c#process
Ofer strichman
Ofer strichman

Reputation: 171

RedirectStandardOutput prevents Process.Exited event raised?

All I want is to redirect standard output of a process to a file. Sounds easy, but everything I tried doesn't work:

  1. putting a DOS-style redirection in the list of arguments (e.g. param1 param2 > output.txt) doesn't work;

  2. using RedirectStandardOutput = true works, BUT, apparently the process does not raise an event when it exists. So the handler defined via process.Exited += ... doesn't execute. To be clear, once I remove the RedirectStandardOutput = true statement, it DOES raise an event.

What am I doing wrong ?

Upvotes: 3

Views: 1148

Answers (1)

Be Brave Be Like Ukraine
Be Brave Be Like Ukraine

Reputation: 7735

Method #2 must be the way to go.
The problem seems to be caused by output buffering which prevents triggering Exited event.

You should consider eliminating the Exited event handler. Instead, subscribe to OutputDataReceived event and check Process.HasExited property in the handler to perform cleanup job:

process.OutputDataReceived += new DataReceivedEventHandler(process_OutputDataReceived);

...

void process_OutputDataReceived(object sender, DataReceivedEventArgs e)
{
    Process p = (Process) sender;
    if(p.HasExited) ...
}

Upvotes: 1

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