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Assuming class A { } class B : A { } covariance is not supported for generic class. Meaning - we cant do something like this : MyConverter<B> x1= new MyConverter<B>(); MyConverter<A> x2= x1; Thats fine and understood. From my reading - i understand that Covariance will be available: "If you use a backing Generic Interface Being implemented on a Generic Class - so that access to the T type object instance will be available through those interfaces ". I have just one problem. Ive seen many examples of the "converter" class as a form of Stack . But never understood " what if I want to use only 1 instance of B from a reference of A ? " so Ive tried some code : Create B object + values ---> use Generic Converter for B ---> use the covariance flow to get its A reference ---> now you can use it either as A or as B. My question : Is That the correct way of doing this ( for using covariance for 1 object only ) ? p.s. The code is working and compiled ok. https://i.sstatic.net/PJ6QO.png Ive been asking /reading a lot about this topic lately - I dive into things in order to understand them the best I can.

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