The Process.OutputDataReceived event indicates that the associated System.Diagnostics.Process has written to its redirected Process.StandardOutput stream.

The event is enabled during asynchronous read operations on Process.StandardOutput. To start asynchronous read operations, you must redirect the Process.StandardOutput stream of a System.Diagnostics.Process, add your event handler to the Process.OutputDataReceived event, and call Process.BeginOutputReadLine. Thereafter, the Process.OutputDataReceived event signals each time the process writes a line to the redirected Process.StandardOutput stream, until the process exits or calls Process.CancelOutputRead.