Prestwood IT: VB Classic Prevent Derivation (Not Supported) (C# (Visual C# & VS.Net))

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C# OOP:

VB Classic Prevent Derivation (Not Supported)

By Mike Prestwood

Posted 17 years ago on 10/24/2008 and updated 1/19/2009

C# Code Snippet:

To/From Code Guide: VB Classic Prevent D... vs. Other Languages

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Tags: VB Classic , Prevent Derivation

KB101428

Languages Focus: Prevent Derivation

How do you prevent another class from inheriting and/or prevent a class from overriding a member.

VB Classic Prevent Derivation

VB Classic supports a form of single level inheritance where you, in essence, create an abstract class and then implement it in one or more classes that inherit from the abstract class. However, you cannot have any further descendant classes so "prevent derivation" is implemented by design of this simple inheritance model.

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Code Contributed By Mike Prestwood:

Mike Prestwood is a drummer, an author, and creator of the PrestwoodBoards online community. He is the President & CEO of Prestwood IT Solutions. Prestwood IT provides Coding, Website, and Computer Tech services. Mike has authored 6 computer books and over 1,200 articles. As a drummer, he maintains play-drums.com and has authored 3 drum books. If you have a project you wish to discuss with Mike, you can send him a private message through his PrestwoodBoards home page or call him 9AM to 4PM PST at 916-726-5675 x205.

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