#537 – Implement a Generic Interface with a Generic Class

When a class makes use of a generic interface, it can choose to implement the constructed interface, supplying all type parameters for the interface.

public class Farmer : IRememberMostRecent<Joke>

A class can also implement a generic interface, as long as the class itself is generic. Type parameters for the interface are supplied to the class when it is constructed.

    public class Dog<T> : ICanEat<T>

This type parameter (or parameters) can then be used in instance methods that implement the interface.

        // ICanEat.Eat
        public void Eat(T thingToEat)
            // ...

You can also use the type parameter passed to the class in instance methods that are not part of the interface.

        // Not part of the interface
        public void PlayWith(T thingToPlayWith)
            // ...

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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