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 private void receiving(object temp)
        {
            int nr = (int)temp;
            string ip = "";
            try
            {
                ip = client[nr].Client.RemoteEndPoint.ToString();
            }
            catch
            {
            }
            try
            {
                while (client[nr].Connected)
                {
                    while (!(client[nr].Available>0))
                    {
                        Thread.Sleep(200);
                    }
                    client[nr].Client.Receive(data);
                    lastreceived = Encoding.ASCII.GetString(data);
                    OnReceive(this, new EventArgs());
                   
                    
                }
            }
            catch
            {
            }
            free[nr] = true;
            currconn--;
            ipoflastdisconnectedclient = ip;
            OnClientDisconnect(this, new EventArgs());
        }                    

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while(IsConnected(socket) {
   while (IsConnected(socket) && socket.Available == 0)
   {
       // waiting for Data
       Thread.Sleep(200);
   }
   if (socket.Available > 0) { //process data }
}