Hi!
<short history>
How serialize and deserialize proxied objects?
</short history>
I'm having trouble implementing IEditableObject on a DynamicProxy on
Silverlight. I'm trying to use DataContractSerializer, with opt-in members
marked with DataMember. A problem occurs when trying to deserialize the
object from the byte array, because it tries to recreate a proxied object
and some members injected by DP aren't streamed. The error occurs precisely
when DCS
calls
Castle.DynamicProxy.AbstractInvocation.SelectMethodInterceptors(IInterceptorSelector
selector, IInterceptor[] methodInterceptors, Type targetType), I don't know
why, but it does.
With XmlSerializer, as it is an opt-out approach, it gives me an error when
trying to serialize an interface IInterceptorSelector, it says it's not
possible to serialize interfaces.
void IEditableObject.BeginEdit()
{
MemoryStream ms = new MemoryStream();
DataContractSerializer dcs = new
DataContractSerializer(MemberToSerialize.GetType());
dcs.WriteObject(ms, MemberToSerialize);
_copy = ms.ToArray();
}
void IEditableObject.CancelEdit()
{
if (_copy != null)
{
MemoryStream ms = new MemoryStream(_copy, false);
DataContractSerializer dcs = new
DataContractSerializer(MemberToSerialize.GetType());
var newObject = dcs.ReadObject(ms);
MemberToSerialize = newObject;
_copy = null;
}
}
MemberToSerialize is created with ProxyGenerator.CreateClassProxy<T>().
--
André F. Werlang
twitter.com/awerlang
programmernotfound.blogspot.com
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