finding a key in any deserialized json class

Question

Hi...

 

Requirement is like..

 

i want to design a function that takes json deserialised object class and a search key and returns the key value from that function.

 

i have many json objects and they have different nestings that is why the problem exists.

 

i tried using properties to browse through the class object but it requires hardcoding.  plzzz help..