[Mono-list] A problem about WCF interoperation between mono and MS .Net

[Atsushi Eno]

One possibility idea is this: interoperability wise, WCF sucks when 
there is generic types by adding hash-based suffix on the element names. 
So, give explicit name on the dictionary object by subclassing it or 
whatever. If it still doesn't work, I have no idea.

Atsushi Eno

hayate wrote:
> Hi all,
>
> These days I've been struggling with a problem: a Windows silverlight 
> app cannot deserialize the data from a WCF service under Mono, which 
> later leads to my discovery.
>
> When serializing and deserializing some dictionary style data, it 
> seems the MS .Net implementation does not work well with Mono imp, I 
> made a simple case to demo this:
>
> Say I have a WCF service like this:
> // WCF service contract
> [ServiceContract]
> public interface IAnswerService
> {
>   [OperationContract]
>   Dictionary<int, List<string>> Ask ();
> }
>
> public class AnswerService : IAnswerService
> {
>   public Dictionary<int, List<string>> Ask ()
>   {
>           var d = new Dictionary<int, List<string>>() {  {42, new 
> List<string>(){"universe", "life"}}  };
>
>       return d;
>   }
> }
>
> public class Test
> {
>   public static void Main (string [] args)
>   {
>         var baseAddress = new Uri("http://localhost:8080/Answer.svc");
>         var host = new ServiceHost (typeof (AnswerService));
>         var binding = new BasicHttpBinding ();
>         host.AddServiceEndpoint(typeof(IAnswerService), binding, 
> baseAddress);
>         host.Open ();
>
>         Console.WriteLine ("Type [CR] to stop...");
>         Console.ReadLine ();
>         host.Close ();
>   }
> }
>
> Note the data structure is Dictionary<int, List<string>>. Then I made 
> a console client to read the data. The problem is, if I run the client 
> under mono, everything is OK, if I run it under MS .Net, nothing is 
> read. If I change the data structure to things like Dictionary<int, 
> string>, everything works as expected.
>
> sum it up:
> server under Mono <====not work====> client under MS .Net
> server under Mono <=====work=====>  client under Mono
> server under MS .Net <=====work=====> client under MS .Net
> server under MS .Net <=====work=====> client under Mono
>
> only one case does not work.
>
> Any ideas?
>
> Thanks
>
> Regards,
>
>
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