Return Json format result from WCF

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C#

WCF

Hi Friends,


I am new to WCF and have to make a service that returns the DataSet values in Json format.
I know the Json is a key:value format.
But,I could not understand if I have 10 rows in my dataset how can I return in the json format.

Does it work just to include [WebGet(ResponseFormat=WebMessageFormat.Json)] attribute to my operation contract, and return to my Dataset in return type of method.

[ServiceContract]
    public interface IService1
    {

        [OperationContract]
        [WebGet(ResponseFormat=WebMessageFormat.Json)]
        DataSet GetData(string prodID);
}

 public class Service1 : IService1
{
public DataSet GetData(string prodID)
{
     DataSet ds = new DataSet();
   //
   //I am populating the dataset here
   //
  

return ds;
//how should I make it in json format now.
}
}

Thanks.