Here is some as-is code for helping with System.Diagnostics.Process

  • Thread starter Thread starter hellosticky
  • Start date Start date
H

hellosticky

Thought I would throw this out there so that it could be Google'd.
Deals with a common use of Process which is to encapsulate another
process and grab its standard out and standard error, and so it uses
the asynchronous operations that the Process class provides. Sorry for
lack of commenting. This code is provided As Is, with no warranty
implied, and can be used for any purpose, royalty free.

// Common usage:
ProcessHelper realProcess = new ProcessHelper();
realProcess.FileName = @"c:\program
files\subversion\bin\svn.exe";
realProcess.SetArguments("info");
realProcess.Start(true);


/// <summary>
/// See
http://msdn2.microsoft.com/en-us/library/system.diagnostics.process.standarderror.aspx
/// </summary>
public class ProcessHelper
{
private Process m_process = new Process();
private TextWriter m_error = Console.Error;
private TextWriter m_out = Console.Out;

public ProcessHelper()
{
m_process.ErrorDataReceived += new
DataReceivedEventHandler(process_ErrorDataReceived);
m_process.OutputDataReceived += new
DataReceivedEventHandler(process_OutputDataReceived);
}

public string FileName
{
get
{
return m_process.StartInfo.FileName;
}
set
{
m_process.StartInfo.FileName = value;
}
}

public string Arguments
{
get
{
return m_process.StartInfo.Arguments;
}
set
{
m_process.StartInfo.Arguments = value;
}
}

public void SetArguments(params string[] args)
{
Arguments = string.Join(" ", args);
}

protected virtual void process_OutputDataReceived(object
sender, DataReceivedEventArgs e)
{
if (e.Data != null)
{
m_out.WriteLine(e.Data);
}
}

protected virtual void process_ErrorDataReceived(object sender,
DataReceivedEventArgs e)
{
if (e.Data != null)
{
m_error.WriteLine(e.Data);
}
}

public Process Process
{
get
{
return m_process;
}
set
{
m_process = value;
}
}

public ProcessStartInfo StartInfo
{
get
{
return m_process.StartInfo;
}
}

public void Start(bool waitForExit)
{
// Initialize the asynchronous stuff
m_process.StartInfo.UseShellExecute = false;
m_process.StartInfo.RedirectStandardError = true;
m_process.StartInfo.RedirectStandardOutput = true;
m_process.StartInfo.WorkingDirectory =
Environment.CurrentDirectory;
m_process.StartInfo.CreateNoWindow = true;

m_process.Start();

m_process.BeginErrorReadLine();
m_process.BeginOutputReadLine();

if (waitForExit)
{
m_process.WaitForExit();
}
}

public TextWriter Error
{
get
{
return m_error;
}
set
{
m_error = value;
}
}

public TextWriter Out
{
get
{
return m_out;
}
set
{
m_out = value;
}
}
}
 
Updated version of SetArguments method:

public void SetArguments(params string[] args)
{
StringBuilder sb = new StringBuilder();
int c = 0;
bool containsSpace;
foreach (string val in args)
{
if (c > 0)
{
sb.Append(' ');
}
containsSpace = (val.IndexOf(' ') != -1);
if (containsSpace)
{
sb.Append('\"');
}
sb.Append(val);
if (containsSpace)
{
sb.Append('\"');
}
c++;
}
Arguments = sb.ToString();
}

Thought I would throw this out there so that it could be Google'd.
Deals with a common use of Process which is to encapsulate another
process and grab its standard out and standard error, and so it uses
the asynchronous operations that the Process class provides. Sorry for
lack of commenting. This code is provided As Is, with no warranty
implied, and can be used for any purpose, royalty free.

// Common usage:
ProcessHelper realProcess = new ProcessHelper();
realProcess.FileName = @"c:\program
files\subversion\bin\svn.exe";
realProcess.SetArguments("info");
realProcess.Start(true);


/// <summary>
/// See
http://msdn2.microsoft.com/en-us/library/system.diagnostics.process.standarderror.aspx
/// </summary>
public class ProcessHelper
{
private Process m_process = new Process();
private TextWriter m_error = Console.Error;
private TextWriter m_out = Console.Out;

public ProcessHelper()
{
m_process.ErrorDataReceived += new
DataReceivedEventHandler(process_ErrorDataReceived);
m_process.OutputDataReceived += new
DataReceivedEventHandler(process_OutputDataReceived);
}

public string FileName
{
get
{
return m_process.StartInfo.FileName;
}
set
{
m_process.StartInfo.FileName = value;
}
}

public string Arguments
{
get
{
return m_process.StartInfo.Arguments;
}
set
{
m_process.StartInfo.Arguments = value;
}
}

public void SetArguments(params string[] args)
{
Arguments = string.Join(" ", args);
}

protected virtual void process_OutputDataReceived(object
sender, DataReceivedEventArgs e)
{
if (e.Data != null)
{
m_out.WriteLine(e.Data);
}
}

protected virtual void process_ErrorDataReceived(object sender,
DataReceivedEventArgs e)
{
if (e.Data != null)
{
m_error.WriteLine(e.Data);
}
}

public Process Process
{
get
{
return m_process;
}
set
{
m_process = value;
}
}

public ProcessStartInfo StartInfo
{
get
{
return m_process.StartInfo;
}
}

public void Start(bool waitForExit)
{
// Initialize the asynchronous stuff
m_process.StartInfo.UseShellExecute = false;
m_process.StartInfo.RedirectStandardError = true;
m_process.StartInfo.RedirectStandardOutput = true;
m_process.StartInfo.WorkingDirectory =
Environment.CurrentDirectory;
m_process.StartInfo.CreateNoWindow = true;

m_process.Start();

m_process.BeginErrorReadLine();
m_process.BeginOutputReadLine();

if (waitForExit)
{
m_process.WaitForExit();
}
}

public TextWriter Error
{
get
{
return m_error;
}
set
{
m_error = value;
}
}

public TextWriter Out
{
get
{
return m_out;
}
set
{
m_out = value;
}
}
}
Click to expand...
 
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