From: Ra Carter on 14 Mar 2010 10:18 I want to serialize and deserialize an object to and from JSON. My code looks something like this: http://pastebin.com/yB5idwNq This gives me an error like this: System.Runtime.Serialization.SerializationException: Type 'MyObject1' with data contract name 'MyObject1:http://schemas.datacontract.org/ 2004/07/namespace' is not expected. Add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer. I am only using ISerializable because [Serializable] [DataContract] would not work of course. The main problem I think I am having is that I have declared my return type as an interface. I don't want to change my objects and it is actually important that I return the interface and not the implementation for various reasons. What can be done? if Serializable or DataContract attributes won't work automatically, can I pull this off manually using Serializable?
From: sloan on 16 Mar 2010 22:36 http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/6b70e9f4-52bc-4fa9-a0ff-c0859e041e85 http://blogs.msdn.com/sowmy/archive/2006/06/06/all-about-knowntypes.aspx Please post your solution after you figure out, so others can learn from it. "Ra Carter" <spacemonkeyiv(a)gmail.com> wrote in message news:172f43fb-c4e1-47b6-b433-47600b46525b(a)k17g2000yqb.googlegroups.com... >I want to serialize and deserialize an object to and from JSON. My > code looks something like this: > > http://pastebin.com/yB5idwNq > > This gives me an error like this: > > System.Runtime.Serialization.SerializationException: Type 'MyObject1' > with data contract name 'MyObject1:http://schemas.datacontract.org/ > 2004/07/namespace' is not expected. Add any types not known statically > to the list of known types - for example, by using the > KnownTypeAttribute attribute or by adding them to the list of known > types passed to DataContractSerializer. > > I am only using ISerializable because [Serializable] [DataContract] > would not work of course. The main problem I think I am having is that > I have declared my return type as an interface. > > I don't want to change my objects and it is actually important that I > return the interface and not the implementation for various reasons. > What can be done? if Serializable or DataContract attributes won't > work automatically, can I pull this off manually using Serializable?
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