IList - SerializationException

Question

I'm geting serialization exception while trying to send IList childs collection.
This is my class:
[DataContract(Name = "Parent", Namespace = "MyNamespace")]
public class Parent: ModelBase
{
...
        [DataMember(Name = "Childs", Order = 6)]
        protected IList _childs = null;

...

This is exception:
System.Runtime.Serialization.SerializationException: No type has DataContract 'http://schemas.microsoft.com/2003/10/Serialization/Arrays:ArrayOfanyType' in element 'MyNamespace:Childs'. Use KnownType attribute to specify types that are not known statically at System.Runtime.Serialization.XmlFormatterDeserializeContext.InternalDeserialize(XmlReaderDelegator xmlReader, DataContract& dataContract, Dictionary`2 knownDataContracts)

Is there a way to send this collection, or to instruct XmlFormater to deserialize it as ArryList?

Answer 1

Can you please post which CTP bits you were using? With Feb CTP this should work. you must be able deserialize it as an array.

Please consider adding object[] to Known types for your case.

[DataContract(Name = "Parent", Namespace = "MyNamespace")]

[KnownType(typeof(object[]))]
public class Parent: ModelBase
{
...
        [DataMember(Name = "Childs", Order = 6)]
        protected IList _childs = null;

To deserialize this as an ArrayList you need to change the member type to ArrayList

I hope this answers your question.

 

Answer 2

Thanks Sowmy,
it is working now with feb CTP I used go live version before.