Channel contract mismatch when implementing ISerializable

Question

Hello,
I am trying to retrieve an object via an OperationContract Channel
but when I try to implement ISerializable for that class, I receive a CommunicationException client side. The serialization and deserialization work fine server side. 
The exception additional information says: "the server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error.
Basically, I am using a WCF service (self-hosted) very similar to what is described here:
https://msdn.microsoft.com/en-us/library/ms731758(v=vs.110).aspx
In my case, the operation contract expose is a get property that returns an object A (a container of data really). One of the fields of this object is also an object, B. Now, B is a very simple class that contains only three jagged arrays, and three get properties
that transform the jagged arrays to multidimensional arrays.
Serialization, deserialization and operation contract work fine in this setup. When class B implements ISerializable, the channel returns the exception. ISerializable is implemented in the following way:
constructor: (not sure the details are important but nevertheless) reads the entries in Serialization info and if the serialized file contains the jagged arrays it just makes the assignment, if it contains the multidimensional arrays, it converts them
to jagged and makes the assignment.
GetObjectData: only adds to SerializationInfo the jagged arrays.
If you are wondering, this is done to keep retro-compatibility with an old version of class B (serialization is not only used by Channel, I also use it to save data). 
Thanks,
Leo

Answer 1

Hi LeoBrl,
>>the server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error.
For your issue, it will be better if you can try to post a simple reproduce project in here.
Besides, for troubleshooting this issue, please try to enable the WCF Tracing to help get more detailed error information.
#How to configure WCF Tracing:
https://msdn.microsoft.com/en-us/library/ms733025(v=vs.110).aspx .
Best Regards,
Amy Peng
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