#625 – Reference a Nested Type Using Dot Notation

If a nested type is declared with the proper access modifier, it will be accessible from outside the class that contains it.  To use a nested type, you use a dot notation that looks like the following:

OuterType.InnerType

For example, let’s say that you define a DogCollar class inside the definition of a Dog class.  If DogCollar is made accessible from outside the implementation of Dog, you could use it as follows:

            Dog.DogCollar jacksCollar = new Dog.DogCollar(6);

Note that, unlike namespaces, you cannot include a using statement that would allow you to use the DogCollar type name without the Dog prefix.  The nested type must always be prefixed by the name of the containing type.

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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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