quote:

---

[C#] 
string output = p.StandardOutput.ReadToEnd();
string error = p.StandardError.ReadToEnd();
p.WaitForExit();

In this case, if the child process writes any text to standard error it will block the process, because the parent process cannot read from standard error until it has finished reading from standard output. However, the parent process will not read from standard output until the process ends. A recommended solution to this situation is to create two threads so that your application can read the output of each stream on a separate thread.

---

...
this.Start();

OutputReader sor = new OutputReader();
sor.StreamReader = this.StandardOutput;
if(this.StandardOutputFile != null)
    stdoutthread = new Thread(new ThreadStart(sor.Start));

OutputReader ser = new OutputReader();
ser.StreamReader = this.StandardError;
if(this.StandardErrorFile != null)
    stderrthread = new Thread(new ThreadStart(ser.Start));

this.WaitForExit();
...

class OutputReader
{
    public StreamReader StreamReader
    {
        set{ this.reader = value; }
    }
    private StreamReader reader = null;

    public string Reads
    {
        get{ return this.reads; }
    }
    private string reads;

    public void Start()
    {
        Console.WriteLine("reading...");
        reads = this.reader.ReadToEnd();        
    }
}