introspection - In C# what is the equivalent of "is" keyword but using Type objects -

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I think that's a simple question, but in the type class document, they only talk about the interface on the GetInterfaces method.

i.e. Typeof (ChildClass) .XXX (ParentClass)

This is your Depending on what needs; IsAssignableFrom, probably: 

  bool stringIsObj = typeof (object) .IsAssignableFrom (typeof (string));

or < Code> IsSubclassOf : 

  bool stringIsObj = typeof (string) .isSubclassOf (typeof (object));

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