parsing network stream

Question

hey!, i wonder if anyone could lend me a hand with the following, below i have a code segment from a class im writing which essentially streams bytes from a network socket and retrives that data and converts it using ASCII into a readable format and at present prints this info out to a text file, this was just for disagnostic purposes, all of this works btw, what i require is to parse the stream presumeabley with a streamreader and look for certain strings within the stream, ive had a complete mind blank and i cannot figure out where i need to start parsing this file, is it within my if statement? and would a streamreader be prefabable? thanks in advance

 

 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
 
namespace RSI_MONITORING
{
abstract class Comm
{
protected int port;
protected bool type; //true is tcp, false is udp
 
public Comm()
{
}
 
protected void beginByteLoop(ref TcpClient client, int sleepTime)
{
NetworkStream ns = client.GetStream();
BinaryReader reader = new BinaryReader(ns, Encoding.ASCII);
FileStream dataFile = new FileStream("C:\\results.dat", FileMode.Append);
StreamWriter writer = new StreamWriter(dataFile);

System.Collections.ArrayList buffer = new System.Collections.ArrayList();
byte myByte;

while (true)
{
try
{ myByte = reader.ReadByte(); }
catch (EndOfStreamException e)

{
Console.WriteLine(e);
Console.WriteLine("End of stream");
break;
}

buffer.Add(myByte);


if (ns.DataAvailable == false)
{
byte[] convertedBuffer = new byte[buffer.Count];
buffer.CopyTo(convertedBuffer);
writer.WriteLine(Encoding.ASCII.GetString(convertedBuffer));
Console.WriteLine(Encoding.ASCII.GetString(convertedBuffer));
}
}
writer.Close();
}
}
}