#1,040 – Deriving from a Constructed Type

You can define a generic class that inherits from another generic class, for example:

public class ListPlus<T> : List<T>

You can also derive from a constructed type, rather than a generic type.  A constructed type is just a generic type with the type parameters filled in (type arguments provided).

For example:

    public class DogListPlus : List<Dog>
    {
        public void AddTwoDogs(Dog d1, Dog d2)
        {
            base.Add(d1);
            base.Add(d2);
        }
    }

We can then use this new type as follows:

            DogListPlus dogList = new DogListPlus();
            Dog fido = new Dog("Fido");
            Dog bowser = new Dog("Bowser");
            dogList.AddTwoDogs(fido, bowser);
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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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