Chapter 17 Working with VB .NET

Delegate

You can design the following types of VB .NET delegates:

• To create a delegate at the namespace level, create a class with the <<Delegate>> stereotype, and add an operation with the <<Delegate>> stereotype to this class and define a visibility for this operation. This visibility becomes the visibility of the delegate
  

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Public Delegate Function ActionOccurred () As Object
...

• To create a delegate in a class, module, or structure, you just have to create an operation with the <<Delegate>> stereotype. In the following example, class Worker is inner to module Utilities. Both contain internal delegates designed as operations with the <<Delegate>> stereotype
  

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Public Module Utilities
   Public Delegate Function NewWorker () As Object
   Public Class Worker
      Public Delegate Function WorkStarted () As Object
   End Class
End Module
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