JSON Serialization/Deserialization mismatch (ASP.Net)

Question

Hi,

When I call a PageMethod in my page, the serialized object looks like: {"d":{"__type":"MyAsembly.MyNamespace.Person","Name":"ulu","Age":40}}

This is ok for Javascript, but my .Net deserializer won't understand it:

var result= new JavaScriptSerializer(new SimpleTypeResolver()).Deserialize<Person>(source);

throws System.InvalidOperationException: Operation is not valid due to the current state of the object.

Now, the actual problem is that the Activator can't create the result object: it doesn't understand "MyAsembly.MyNamespace.Person" and needs "MyAsembly.MyNamespace.Person, MyAssembly".

The question is, what do I need to change so that serialization becomes compatible with deserialization?

Thanks a lot ulu

Answer 1

Seems like you already know the answer: modify the value of the __type property before serializing the object on the JavaScript side. Alternatively, you could do a replace on the serialized data before pushing it through the deserializer.

Question though: where is the data being serialized? If you're doing it in .NET and then sending it to the client, it shouldn't need any modification when it gets back to the server unless something tampered with the __type property.

Answer 2

I am guessing that

{"d":{"__type":"MyAsembly.MyNamespace.Person","Name":"ulu","Age":40}}

should be

{"d":{"__type":"MyAssembly.MyNamespace.Person","Name":"ulu","Age":40}}