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Editorial Team
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Asked: 2026-05-26T16:51:12+00:00

I have the next problem: I have a big object graph being binary serialized

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I have the next problem: I have a big object graph being binary serialized with many fields and events marked as [NonSerializable] or [field:NonSerializable].

The problems is that, I still don’t know from-where or why (complex call tree), some Action or Func (which are fields marked as [NonSerializable] and have lambdas assigned) are serialized as you can see in the created binary file.

So, what technique could I use to detect “serialization leaks”: The members of my code where those events are hooked?

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  1. Editorial Team

    I would use reflection here, working through each property/field into related types (taking lists and other generics into account), trying to build a complete list of types we expect in the model. From there, obtain all the fields from such that are either EventHandlerList or a Delegate type (taking base-classes into account, and sub-classes where possible). Now check if any of those fields are not marked with NonSerializedAttribute to ignore serialization.

    Or perhaps easier: use a serializer that doesn’t EVER write delegates; any of XmlSerializer, JavascriptSerializer, DataContractSerializer, or if you want direct binary protobuf-net. Or virtually anything that isn’t BinaryFormatter or NetDataContractSerializer.

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