Cannot send Data from client to server

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C#

C#4.0

TCP/IP

Friends i am making a client server application but the problem is that i cannot send data from CLIENT to SERVER , but i can receive data from SERVER to CLIENT ... Below is mt client and Server code please help me to sort out my problem..



CLIENT CODE

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;


namespace asynclient
{
    class Program
    {
        Socket sc;
        IPEndPoint iep;
        IPAddress ipd;
        byte[] arr = new byte[1024];
        public byte[] data = new byte[1024];
	public Program()
        {
            connect();
           
        }
        public void connect()
        {
            try
            {
                sc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                ipd = IPAddress.Parse("127.0.0.1");
                iep = new IPEndPoint(ipd, 9050);
                sc.BeginConnect(iep, new AsyncCallback(connected), sc);
		        
                Console.ReadKey();
            }
            catch (SocketException ex)
            {
                Console.WriteLine("Cannot Connect to the server....");
            }
        }
        public void connected(IAsyncResult iar)
        {
            Socket ts = (Socket)iar.AsyncState;
            try
            {
                ts.EndConnect(iar);
                ts.BeginReceive(data, 0, data.Length, SocketFlags.None,new AsyncCallback(ReceiveData), ts);
                Console.WriteLine("Successfully Connected to Server");
            }
            catch(SocketException ex)
            {
                Console.WriteLine("Unable to connect to the host....");
            }
        }
        public void ReceiveData(IAsyncResult iar)
        {
            Socket remote = (Socket)iar.AsyncState;
            int recv = remote.EndReceive(iar);
            string stringData = Encoding.ASCII.GetString(data, 0, recv);
            Console.WriteLine(stringData);    
        }
        public void sendata()
        {
            string sz = "Yahoo Data Sent.";
            byte[] arr = System.Text.Encoding.ASCII.GetBytes(sz);
            sc.BeginSend(arr,0,arr.Length,SocketFlags.None,new AsyncCallback(send),sc);

 
        }

        public static void send(IAsyncResult iar)
        {
            Socket tc = (Socket)iar.AsyncState;
            int send = tc.EndSend(iar);
        }
        static void Main(string[] args)
        {
            Program a1 = new Program();
            a1.sendata();

        }
    }
}

SERVER CODE

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace asynserver
{
    class Program
    {
        Socket sc;
        IPEndPoint iep;
        byte[] data = new byte[1024];

        public Program()
        {
            listen();
        }
        public void listen()
        {
            try
            {
                sc=new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
                iep = new IPEndPoint(IPAddress.Any,9050);
                sc.Bind(iep);
                sc.Listen(5);
                sc.BeginAccept(new AsyncCallback(CallAccept),sc);
                Console.ReadKey();
            }
            catch(SocketException ex)
            {
                Console.WriteLine("Unable to Accept Connection");
            }
        }
        public void CallAccept(IAsyncResult iar)
        {
            Socket oldserver = (Socket)iar.AsyncState;
            Socket client = oldserver.EndAccept(iar);
            Console.WriteLine("Connected to: " + client.RemoteEndPoint.ToString());
            string stringData = "Welcome to my server";
            byte[] message1 = Encoding.ASCII.GetBytes(stringData);
            client.BeginSend(message1, 0, message1.Length, SocketFlags.None,
            new AsyncCallback(SendData), client);
            client.BeginReceive(data, 0, data.Length, SocketFlags.None, new AsyncCallback(ReceiveData), client);

        }
    
        public void SendData(IAsyncResult iar)
        {
            Socket client = (Socket)iar.AsyncState;
            int sent = client.EndSend(iar);
            
           
        }
        public void ReceiveData(IAsyncResult iar)
        {
            Socket remote = (Socket)iar.AsyncState;
            int recv = remote.EndReceive(iar);
            string stringData = Encoding.ASCII.GetString(data, 0, recv);
            Console.WriteLine(stringData);
        }


        static void Main(string[] args)
        {
            Program c1 = new Program();
        }
    }
}