Serializing singletons using ISerializable/IObjectReference fails

[kevmal]

The exception message is "is ISerializable but does not implement constructor with parameters (SerializationInfo, StreamingContext)." But in the case of a singleton this is expected. SetType is used on SerializationInfo to set a IObjectReference helper type which contains the required constructor.

For example: https://msdn.microsoft.com/en-us/library/system.runtime.serialization.iobjectreference%28v=vs.110%29.aspx

[eiriktsarpalis]

Thanks,

I wasn't aware of this interface so I started reading through it. I found that it is being used in a variety of different ways, some of which seem a bit contradicting: for example

• https://msdn.microsoft.com/en-us/library/system.runtime.serialization.iobjectreference%28v=vs.110%29.aspx,
• http://stackoverflow.com/questions/3213410/iserializable-assign-an-existing-object-on-deserialization and
• http://blogs.msdn.com/b/carlosfigueira/archive/2011/09/27/wcf-extensibility-other-serialization-extensions.aspx.

I need to figure out the canonical (i.e. most common) way this is being used.

[eiriktsarpalis]

This has been fixed as of FsPickler 1.0.19.

[kevmal]

Awesome. Did a quick test and seems to be working great. My use case was actually closer to the second link you posted, the MSDN page just seemed like the simplest example.