Process.RedirectStandardOuput trouble

[bpayne111]

		public void FormatDisk()
		{
			string temp="";
			
			System.Diagnostics.ProcessStartInfo ps = new System.Diagnostics.ProcessStartInfo();
			ps.FileName="c:\\windows\\system32\\format.com";
			ps.Arguments="a: ";
			ps.CreateNoWindow = true;
			ps.RedirectStandardOutput=true;
			ps.RedirectStandardInput=true;
			//ps.RedirectStandardError = true;
			ps.UseShellExecute=false;
			
			System.Diagnostics.Process p = new System.Diagnostics.Process();
			
			p.StartInfo=ps;
			p.Start();
			
			StreamWriter sIn = p.StandardInput;
			
			
//			
			try
			{
					//sIn.Write(System.Environment.NewLine);
					while(p.StandardOutput.Peek() != -1)
					{	
						temp = p.StandardOutput.ReadLine(); //read stream
						Debug.WriteLine(temp);
												
					}
					sIn.Write(System.Environment.NewLine);
					while(p.StandardOutput.Peek() != -1)
					{	
						temp = p.StandardOutput.ReadLine(); //read stream
						Debug.WriteLine(temp);
													
					}
				
			}
			catch(Exception err)
			{
				Debug.WriteLine(err.Message.ToString());
			}
			p.Close();
			Debug.WriteLine("process closed");

				
		}

 

when this code is run the output window only shows the following:

Insert new disk for drive A:
process closed

 

any ideas on what's going on here?

i'm pretty stuck at this point because i have no trouble with .exe's but .com seems to act funny

 

thanks,

brandon

[Joe Mamma]

I havent looked very closely at exactly what you are trying to do here, but I gather you are just wanting to kick off the format command and wait for it to finish and then write 'process closed'

 

where is your loop checoking the Process.HasExited value?

 

while ( !p.HasExited) 
try
{
}
catch(Exception err)
{
 Console.WriteLine(err.Message.ToString());
}
p.Close();
Debug.WriteLine("process closed");

[bpayne111]

while ( !p.HasExited)

QUOTE]

 

funny enough i get this error now

The following exception occurred: System.InvalidOperationException: No process is associated with this object.

 

the loop was inserted after the process was initialized

 

hmm

thanks though

brandon

[bpayne111]

I still get the same results as before...

except for now the process is never closed.

is this because i'm using a .com instead of a .exe?

[Joe Mamma]

the command line you want to execute is -

 

cmd /c format a:

 

cmd is the process, /c format a: is the argument string, ala -

 

ProcessStartInfo pi new ProcessStartInfo("cmd.exe", "/c format a:");

[bpayne111]

why /c?

 

i'm gonna try it now

thanks,

brandon