I'm trying to serialize a type using the DataContractSerializer and am getting the exception below. This isn't for an SOA service, but I would still like to use the DataContractSerializer if possible. I am using .Net 3.5 SP1.
Type
'System.DelegateSerializationHolder+DelegateEntry'
with data contract name
'DelegateSerializationHolder.DelegateEntry:http://schemas.datacontract.org/2004/07/System'
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.
Can you post your class definition?
It seems like you are trying to serialize a class which has a field of type delegate, which I'm pretty sure will make the serializer choke on.
Did you decorate your class with the DataContract / DataMember attributes? In 3.5 SP1 there is a default behavior for the serializer that serializes everything public in a class by default if it is not marked with those attributes. Maybe you should explicitely mark each property that needs to be serialized with a DataMember attribute and leave out those that should not be.
Other than that, we would need to see your class definition for more help.
There are 3 possible approaches to avoid the error described in http://blogs.microsoft.co.il/blogs/oshvartz/archive/2009/10/10/passing-event-handlers-over-wcf.aspx
