Question

I am aware that HTTP 1.1 can close a connection using the “Connection: close” header in basic socket programming.
Is it possible to create a persistent http connection or session using WCF service? For example:

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

namespace TestServiceInstance
{
    class ServiceTest  :IServiceTest
    {
        private int i = 0;
        public ServiceTest()
        {
            ++i;
        }
        public int PrintNumber()
        {
            return i;
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ServiceTestImplementation.ServiceRef;

namespace ServiceTestImplementation
{
    class Program
    {
        static void Main(string[] args)
        {

            ServiceTestClient client = new ServiceTestClient();


            for (int i = 0; i < 10; i++)
            {
                Console.WriteLine(client.PrintNumber());
            }

            Console.Read();
        }
    }
}

It always print 1 – but I would like it if the service instance can remember its value…
Thanks!

Answer 1

Yes, WCF allows you to persist sessions between client calls.

You can use WCF sessions to accomplish this.

http://msdn.microsoft.com/en-us/library/ms733040.aspx