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Visual Basic 2010 Unleashed by Alessandro Del Sole

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Nested Namespaces

You can nest namespaces within namespaces to create a complex hierarchy of namespaces. However, you should be careful in creating complex hierarchies of namespaces because this can lead to particular complexity in your code that can cause difficulties in maintainability and reuse. You simply nest a namespace within another one by adding a new Namespace..End Namespace block. For example, in Listing 9.1 there are two different kinds of people: a personal contact and two business people (Customer and Employee). You could then consider defining a new namespace for your business objects and one for your personal objects. Listing 9.3 shows a shorter version of the first example, in which nested namespaces expose the two different ...

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