NetMQ in Publisher and subscriber not working - c#-4.0

Question

I'm trying to implement the NetMQ Pub/Sub Model, but the Subscriber is not receiving any messages. What possibly is wrong here?
private static void ServerTask()
{
using (var context = NetMQContext.Create())
{
using (var socket = context.CreateSubscriberSocket())
{
socket.Bind("tcp://10.120.19.109:5000");
socket.Subscribe(string.Empty);
while (true)
{
Thread.Sleep(100);
string receivedMessage = socket.ReceiveString();
Console.WriteLine("Received: " + receivedMessage);
}
}
}
}
public static void ClientTask()
{
using (NetMQContext ctx = NetMQContext.Create())
{
using (var socket = ctx.CreatePublisherSocket())
{
socket.Connect("tcp://10.120.19.109:5000");
string obj = "hi";
socket.Send(obj);
}
}
}
Both are in different apps.

Answer 1

If you are new to NetMQ I suggest reading the zeromq guide http://zguide.zeromq.org/page:all.
Bottom line is that you are sending the message before the subscriber sent the subscription.
Pubsub in zeromq and NetMQ is like radio, you will only get messages from the moment you start listen.
To simple way to do it (not a real life solution) is to sleep for some time after the connect.
For real life solution I need to understand what are you trying to achieve

Answer 2

issue is like
using (NetMQContext ctx = NetMQContext.Create())
{
using (var publisher = ctx.CreatePushSocket())
{
publisher.Bind("tcp://localhost:5000");
int i = 0;
while (true)
{
try
{
publisher.Send(i.ToString(), dontWait:true);
Console.WriteLine(i.ToString());
}
catch (Exception e)
{
}
finally
{
i++;
}
}
}
Now , this code works. But if I move my while(true) loop outside. and call this code from some other function Which forces push socket and context to be created as new everytime.. this doesnot work.