json with wcfservice

WCF
====

IF YOU WANT TO CHANGE YOUR SERVICE TO JSON

YOU NEED TO FOLLOW BELOW STEPS
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YOU NEED TO ADD REFERENCE:using System.ServiceModel.Web;(C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.5  go to this path if not found).
1) IN iSERVICE1
   ==============
  [OperationContract]
        [WebGet(ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "listofcities")]
        List<cities> listofcities();

UNDER SERVICE1
2) AT TOP
  
    // NOTE: If you change the class name "Service1" here, you must also update the reference to "Service1" in App.config.

    [ServiceBehavior(AddressFilterMode = AddressFilterMode.Any)]
======================================================================(ADD THIS ONE(********))
    public class Service1 : IService1
    {


3) IN HOST WEB.CONFIG
======================   (in 2010 vs you need to add one endpoint explicitely)

</serviceBehaviors>
=======================
      <endpointBehaviors>
        <behavior name="WEB">
          <webHttp/>
        </behavior>
      </endpointBehaviors>

PUT THE NAME="WEB" IN ENDPOIN TAG
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 <endpoint address="" binding="webHttpBinding" contract="restarentlib.IService1" behaviorConfiguration="WEB">