Abstract class serialization issue

Hi and thank you for your response,

We are using .net 1.3.6 client.
This is not newtonsoft question because it works there, i’v tried what the link i posted says, and it worked. the thing is that i need to keep in cache series of items that have common base class. there is no known way for me to cache them with the information about the base class so when i’ll bulk-get them i could relate them all as their base class, (as it is standard practice in object oriented programming). Again, i’m wondering about this issue since the problem raised only after we stopped working with binary and moved to json.

Thanks in advance
AmitG