Visual Basic 2015 Unleashed

Partial Interfaces

Visual Basic 2015 introduces partial interfaces, which work exactly like partial classes and partial modules, meaning that you can split the definition of a single interface into two or more code files. This helps keep your code organized in case of very long interface definitions. To define a partial interface, you use the Partial keyword. For example, suppose you have a separate code file with the following partial definition, which extends the IDocument interface with a VersionNumber property of type System.Version:

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Partial Public Interface IDocument    Property VersionNumber As VersionEnd Interface

As usual, IntelliSense helps you pick up one of the interfaces that you can extend. When you ...