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I have the following code:
C#
private void RunCommunicationNewClient(object obj)
{
    var client = (Socket)obj;
    if (client.Connected)
    {
        while (true)
        {
            {
                var buffer = new byte[1024];

                client.Receive(buffer);
                foreach (var sk in _sockets)
                {
                    sk.Send(buffer, buffer.Length, SocketFlags.None);
                }
            }
        }
    }
}


when I run everything is running properly. But when I get the error in the client and server at the following:
C#
while (true)
        {
            {
                var buffer = new byte[1024];

                client.Receive(buffer);//An existing connection was forcibly closed by the remote host

                foreach (var sk in _sockets)
                {
                    sk.Send(buffer, buffer.Length, SocketFlags.None);
                }
            }
        }


// Client

C#
private void ButtonLoginClick(object sender, EventArgs e)
     {
         _buffer = new byte[1024];
         _buffer = Encoding.ASCII.GetBytes(textUserName.Text);
         _socket.Send(_buffer);
         _buffer = new byte[1024];
         _buffer = Encoding.ASCII.GetBytes(textPassword.Text);
         _socket.Send(_buffer);
     }
     private void ConnectToServer()
     {

         try
         {
             _ipEndPoint = new IPEndPoint(IPAddress.Parse("192.168.1.33"), 2009);
             _socket.Connect(_ipEndPoint);
             var vThreadConnect = new Thread(RecevieceData) { IsBackground = true };
             vThreadConnect.Start(_socket);
         }
         catch
         {
             ConnectToServer();
         }

     }
     private void RecevieceData(object obj)
     {
         var socket = (Socket)obj;
         while (true)
         {
             try
             {
                 _buffer = new byte[1024];
                 socket.Receive(_buffer);
                 var info = Encoding.ASCII.GetString(_buffer);
                 MessageBox.Show(Application.ProductName + info);
             }
             catch
             {

                 Disconnect();
                 MessageBox.Show(Resources.Form1_RecevieceData_da_thoat_ket_noi);
                 break;
             }

         }
     }

     private void Form1Load(object sender, EventArgs e)
     {
         _threadConnect = new Thread(ConnectToServer) { IsBackground = true };
         _threadConnect.Start();

     }
     private void Disconnect()
     {
         _socket.Close();
         _threadConnect.Abort();
         Environment.Exit(0);

     }
     protected override void OnClosing(System.ComponentModel.CancelEventArgs e)
     {
         Environment.Exit(1);


     }
Posted
Comments
Pheonyx 23-May-13 6:27am    
Sorry, I have no idea what your question is......
What error? on what line?
Saying what?

Use the improve question to give more details.
Nelek 23-May-13 6:32am    
Read carefully. The error is in the second codesnippet, line "Client.Recieve(Buffer)" and the error message is given as comment after the code.
Richard MacCutchan 23-May-13 6:43am    
The message tells you what the problem is; you need to investigate why it occurred.
MuhammadUSman1 23-May-13 7:05am    
In your code. Server is waiting to Recieve Some data but that time you close your client.that's why Exception occur.
MuhammadUSman1 23-May-13 7:06am    
You need to debug and fix error.

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