SocketException in C# net socket

See more:

C#

application

console

an existing connection was forcibly closed by the remote host

This happens with a socket connection between client and server. The connection is alive and well, and heaps of data is being transferred, but it then becomes disconnected out of nowhere.


Latest....

Server Program
===============

class Program
{

public static void StartServer()
{

byte[] bytes = new byte[1024];

try
{
try
{
IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
IPAddress ipAddress = new IPAddress(new byte[] { 192, 168, 1, 105 });
//ipadd = ds.Tables[0].Rows[i]["IP"].ToString();
//IPAddress ipAddress = new IPAddress(Encoding.ASCII.GetBytes(ipadd ));
IPEndPoint remoteEP = new IPEndPoint(ipAddress, 11000);


Socket sender = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);



sender.Connect(remoteEP);

Console.WriteLine("Socket connected to {0}",
sender.RemoteEndPoint.ToString());


byte[] msg = Encoding.ASCII.GetBytes("date");


int bytesSent = sender.Send(msg);


int bytesRec = sender.Receive(bytes);
Console.WriteLine("Echoed test {0}= {1}", ipAddress.ToString(),
Encoding.ASCII.GetString(bytes, 0, bytesRec));



}
catch (ArgumentNullException ane)
{
Console.WriteLine("ArgumentNullException : {0}", ane.ToString());
}
catch (SocketException se)
{
Console.WriteLine("SocketException : {0}", se.ToString());
}
catch (Exception e)
{
Console.WriteLine("Unexpected exception : {0}", e.ToString());
}

//}

}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}

static void Main(string[] args)
{

StartServer();
Console.Read();
}

Client Program
==============
class Program
{
public static string data = null;

public static void StartListening()
{

byte[] bytes = new Byte[1024];


IPHostEntry ipHostInfo = Dns.Resolve(Dns.GetHostName());
IPAddress ipAddress = ipHostInfo.AddressList[0];
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, 11000);


Socket listener = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);


try
{
listener.Bind(localEndPoint);
listener.Listen(10);


while (true)
{

Console.WriteLine("Waiting for a connection...");

Socket handler = listener.Accept();
data = null;

while (true)
{
bytes = new byte[1024];
int bytesRec = handler.Receive(bytes);
data += Encoding.ASCII.GetString(bytes, 0, bytesRec);

break;
}

if (data == "date")
{

System.Diagnostics.Process process1;
process1 = new System.Diagnostics.Process();
process1.EnableRaisingEvents = false;

*******************************
System.Diagnostics.Process.Start("Notepad.exe");//, strCmdLine);
*******************************
process1.Close();
byte[] msg = Encoding.ASCII.GetBytes("operation completed");

handler.Send(msg);
}
handler.Shutdown(SocketShutdown.Both);
handler.Close();

}

}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}


}

static void Main(string[] args)
{
StartListening();
}

This Program Execute without error...

i change the code notepad.exe to visualstudio setupproject.exe that returns network socket exception