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Editorial Team
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Asked: 2026-05-21T04:59:56+00:00

I have a class Derived<T> that is derived from Base<T> . Which of the

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I have a class Derived<T> that is derived from Base<T>. Which of the following assertions are true or false?

typeof(Derived<SomeType>).IsSubclassOf(typeof(Base<SomeType>))
typeof(Derived<>)        .IsSubclassOf(typeof(Base<SomeType>))
typeof(Derived<SomeType>).IsSubclassOf(typeof(Base<>))
typeof(Derived<>)        .IsSubclassOf(typeof(Base<>))

Thanks in advance

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1 Answer

  1. Editorial Team

    In that case, the first one:

    typeof(Derived<SomeType>).IsSubclassOf(typeof(Base<SomeType>))

    The other’s don’t compile- you cannot refer to a generic without it’s type argument, e.g.

    Something<>
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