Pipe in C#

PIPE_Client.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Pipes;


namespace PIPE_Client
{
    class Program
    {
        static void Main(string[] args)
        {
            Decoder decoder = Encoding.UTF8.GetDecoder();
            Byte[] bytes = new Byte[10];
            Char[] chars = new Char[10];

            // TB?: named pipe
            using (NamedPipeClientStream pipeStream =
                    new NamedPipeClientStream("messagepipe"))
            {
                pipeStream.Connect();
                pipeStream.ReadMode = PipeTransmissionMode.Message;

                int numBytes;
                do
                {
                    string message = "";

                    do
                    {
                        // TB?: is it a block function?
                        numBytes = pipeStream.Read(bytes, 0, bytes.Length);
                        int numChars = decoder.GetChars(bytes, 0, numBytes, chars, 0);
                        message += new String(chars, 0, numChars);

                    } while (!pipeStream.IsMessageComplete);

                    decoder.Reset();

                    Console.WriteLine(message);
                    System.Threading.Thread.Sleep(500);
                } while (numBytes != 0);

                Console.ReadKey();
            }
        }
    }
}

PIPE_Sample.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Pipes;

namespace PIPE_Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            UTF8Encoding encoding = new UTF8Encoding();
            string message1 = "Named Pipe Message Example.";
            string message2 = "Another Named Pipe Message Example.";
            Byte[] bytes;
            int nMsgCnt = 0;

            using (NamedPipeServerStream pipeStream = new
                    NamedPipeServerStream("messagepipe", 
                                          PipeDirection.InOut, 1,
                                          PipeTransmissionMode.Message, 
                                          PipeOptions.None))
            {
                Console.WriteLine("Pipe server waiting for connection ... ...");
                pipeStream.WaitForConnection();

                // Let’s send two messages.
                Console.WriteLine("Pipe server sending message {0}: {1}", nMsgCnt, message1);
                bytes = encoding.GetBytes(message1);
                pipeStream.Write(bytes, 0, bytes.Length);
                nMsgCnt++;

                System.Threading.Thread.Sleep(5000);

                Console.WriteLine("Pipe server sending message {0}: {1}", nMsgCnt, message2);
                bytes = encoding.GetBytes(message2);
                pipeStream.Write(bytes, 0, bytes.Length);

            }

            Console.ReadKey();
        }

    }
}

Thanks, just what I needed. It's surprisingly difficult to find a good example of sending multiple messages in a row.