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I have looked and around and seen that it is possible to return objects serialized into Json from a WCF web service. Does anyone know how I can do this?

Thanks

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Make sure your requesting client is sending the "Accept: application/json" header? – Randy James yesterday
examples? tutorials? – Funky 21 hours ago

3 Answers

up vote 1 down vote accepted

You will have to add attribute to the service like this

    [OperationContract]
    [WebGet(ResponseFormat = WebMessageFormat.Json)]
    ObjectName YourMethodName();
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This alone does not work – Funky 20 hours ago
@Funky This will return Object serialized as JSON. Can you please elaborate a bit ? – Ehsan Ullah 20 hours ago
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you can do with marking your operation contract with WebGet attribute and its RequestBody, ResponseBody format.

You will have to make serialization and deserialization at client side.

Here's a article which describes how to make your operations for JSON enabled and de/serialization at client side

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Yes it is possible you can set automaticFormatSelectionEnabled to true standardEndpoint of webHttpEndpoint in web.config like

<webHttpEndpoint>
  <standardEndpoint name="" helpEnabled="true" automaticFormatSelectionEnabled="true"/>
</webHttpEndpoint>

And you need to add http header for json response to your client

using (HttpClient client = new HttpClient("endpoint"))
{
     HttpRequestMessage request = new HttpRequestMessage("GET", "SomeMethod");                
     request.Headers.Accept.AddString("application/json");
    ...
}
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Can you provide a tutorial for this or link? – Funky 20 hours ago
have a look at msdn – Gökhan Girgin 16 hours ago

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