how to display client-1,client-2, client-3 and so on in the server side when multiple clients are connected to server?

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WinForms

C#5.0

VS2013

This is my Server code and can ou please help me how to add clients-1,client-2,client-3 and so on in this program.

public void OnClientConnect(IAsyncResult asyn)
        {
            try
            {
                m_workerSocket[m_clientCount] = m_mainSocket.EndAccept(asyn);

               
                WaitForData(m_workerSocket[m_clientCount]);
                ++m_clientCount;
              

         
               
                String str = String.Format("Client # {0} connected", m_clientCount);
               
                Invoke(new Action(() => textBoxMsg.Clear()));
                Invoke(new Action(() => textBoxMsg.AppendText(str)));
                m_mainSocket.BeginAccept(new AsyncCallback(OnClientConnect), null);
            }
            catch (ObjectDisposedException)
            {
                System.Diagnostics.Debugger.Log(0, "1", "\n OnClientConnection: Socket has been closed\n");
            }
            catch (SocketException se)
            {
                MessageBox.Show(se.Message);
            }

        }

        public class SocketPacket
        {
            public System.Net.Sockets.Socket m_currentSocket;
            public byte[] dataBuffer = new byte[1024];
        }


        public void WaitForData(System.Net.Sockets.Socket soc)
        {
            try
            {
                if (pfnWorkerCallBack == null)
                {
                    pfnWorkerCallBack = new AsyncCallback(OnDataReceived);
                }
                SocketPacket theSocPkt = new SocketPacket();
                theSocPkt.m_currentSocket = soc;// could be this one!!!
                soc.BeginReceive(theSocPkt.dataBuffer, 0,
                                   theSocPkt.dataBuffer.Length,
                                   SocketFlags.None,
                                   pfnWorkerCallBack,
                                   theSocPkt);
            }
            catch (SocketException se)
            {
                MessageBox.Show(se.Message);
            }

        }

        public void OnDataReceived(IAsyncResult asyn)
        {
            try
            {
                SocketPacket socketData = (SocketPacket)asyn.AsyncState;
                int iRx = 0;
                iRx = socketData.m_currentSocket.EndReceive(asyn);
                char[] chars = new char[iRx + 1];
                System.Text.Decoder d = System.Text.Encoding.UTF8.GetDecoder();
                int charLen = d.GetChars(socketData.dataBuffer,
                                         0, iRx, chars, 0);
                System.String szData = new System.String(chars);
                Invoke(new Action(() => richTextBoxSendMsg.AppendText(szData)));
                Invoke(new Action(() => richTextBoxSendMsg.AppendText(Environment.NewLine)));
                WaitForData(socketData.m_currentSocket);
            }
            catch (ObjectDisposedException)
            {
                System.Diagnostics.Debugger.Log(0, "1", "\nOnDataReceived: Socket has been closed\n");
            }
            catch (SocketException se)
            {
                MessageBox.Show(se.Message);
            }
        }