How to pass a custom object to WCF service

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C#

WCF

Hi All,

I am trying to pass a complex object to WCF service through a Client Application.
When i debug the code, I see object is coming as null.

I tried the following code.

Interface method

[OperationContract]
        [WebInvoke(Method = "POST",
            ResponseFormat = WebMessageFormat.Json,
            BodyStyle = WebMessageBodyStyle.WrappedRequest,
            UriTemplate = "Testmethod/JSON/")]
        bool TestmethodJson(Complain comp);

Service Implementation

public bool TestmethodJson(Complain comp)
        {
            if (comp != null)
            {
             //code goes here  
                return true;
            }
            else
            {
              //code goes here
                return false;
            } 

Client application code goes as follows

static void Main(string[] args)
        {
            Complain comp = new Complain()
            {
                CompainType = "type1",
                CompainBody = "Body1"
            };

             //JavaScriptSerializer serializer = new JavaScriptSerializer();

            string output = JsonConvert.SerializeObject(comp);

            //string output = serializer.Serialize(complain);

             string strUri = "http://localhost:35798/NavGAT.svc/Testmethod/JSON/";
            Uri uri = new Uri(strUri);
            WebRequest request = WebRequest.Create(uri);
            request.Method = "POST";
            request.ContentLength = output.Length;
            request.ContentType = "application/json; charset=utf-8";

          //  JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();
            string serOut = JsonConvert.SerializeObject(comp);
          //  string serOut = jsonSerializer.Serialize(complain);

            using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
            {
                writer.Write(serOut);
            }

            WebResponse responce = request.GetResponse();
            Stream reader = responce.GetResponseStream();

            StreamReader sReader = new StreamReader(reader);
            string outResult = sReader.ReadToEnd();
            sReader.Close();
        }

I am able to call a service from client but object comes as null.Please let me know the problem in passing complex object service.


Thanks in Advance.. :)