Create a WCF Service in C#

First Take

IService.cs
...............................................................................

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;

namespace WCFService
{
    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "ISimple" in both code and config file together.
    [ServiceContract]
    public interface IService
    {
        [OperationContract]
        string Getname(string name);
    }
}

.............................................................................................................

Service.cs

----------------------------------------------

using System;

using System.Collections.Generic;

using System.Linq;

using System.Runtime.Serialization;

using System.ServiceModel;

using System.Text;

namespace WCFService

{

    // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Simple" in both code and config file together.

    public class Service: IService

    {

        public string Getname(string name)

        {

            return "My Name Is " + name;

        }

    }

}

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Take new Project Console appllication for HOST a WCF SERVICE

----------------------------------------------------------------------------------

IN program.cs

---------------------------------

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel;

namespace Simplehost

{

    class Program

    {

        static void Main()

        {

            using (ServiceHost host = new ServiceHost(typeof(WCFService.Simple)))

            {

                host.Open();

                Console.WriteLine(DateTime.Now.ToString());

                Console.ReadLine(); 

            }

        }

    }

}

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IN web.config

---------------------------------------

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <system.serviceModel>

   

    <services>

      <service name="WCFService.Simple">

        <endpoint address="" binding="basicHttpBinding" contract="WCFService.ISimple">

          

        </endpoint>

        <endpoint address="" binding="netTcpBinding" contract="WCFService.ISimple">

        </endpoint>

        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>

        <host>

          <baseAddresses>

            <add baseAddress="http://localhost/WCFService"/>

            <add baseAddress="net.tcp://localhost/WCFService1/"/>

          </baseAddresses>

        </host>

       

        

      </service>

    </services>

    <behaviors>

      <serviceBehaviors>

        <behavior>

          <serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>

          <serviceDebug includeExceptionDetailInFaults="False" />

        </behavior>

      </serviceBehaviors>

    </behaviors>

  </system.serviceModel>

  

  

  

</configuration>

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run this webservice.

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AFTER THAT TAKE A NEW WEB APPLICATION FOR USER WCF SERVICE

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Firstly add web reference of WCF SERVICE

and 

Add Reference of  System.ServiceModel;

and 

add

using System.ServiceModel;

---------------------------------------------------------------------------------------

CALL 

ON BUTTON CLICK

-----------------------------------------------------------------------

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.ServiceModel;

namespace use_wcf

{

    public partial class WebForm1 : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

        }

        protected void Button1_Click(object sender, EventArgs e)

        {

            localhost.Simple client = new localhost.Simple("BINDING NAME");
          //web config binding name if more than one endpoint available

            Label1.Text= client.Getname(TextBox1.Text);

        }

    }

}