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► KB ► To/From Guides ► ASP Classic

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Member Visibility (ASP Classic and VB Classic Cross Reference Guide)

By Mike Prestwood

ASP Classic versus VB Classic: A side by side comparison between ASP Classic and VB Classic.

OOP Basics

Some languages support object-based concepts such as Paradox, Access, and VB Classic. Other languages have OO extensions and fully support object orientation in a hybrid fashion (such as C++ and Dephi for Win32). Finally, some lanages such as C#, VB.Net, Prism, and Java are entirely written in OO. Meaning, every line of code written must occur within a class).

Member Visibility

[Other Languages]

General Info: Class Visibility Specifiers

In OOP languages, members of a class have a specific scope that indicates visibility. Standard visibility includes private, protected, and public. Private members are usable by the defining class only (fully encapsulated). They are invisible outside of the class except by friendly classes. Protected members are usable by the defining class and descendant classes only (plus friendly classes). Public members are usable wherever its class can be referenced.

Languages Focus

Traditional member visibility specifiers for fully OOP languages are private, protected, and public. Many modern OOP languages implement additional member visibilities.

Additional member modifiers are documented under the Member Modifiers topic.

ASP Classic: Private, Public

The member visibility modifiers are Private and Public. If not specified, the default is Public. Private and Public have the usual meaning. Private members are visible only within the class block. Public members are visible within the class and outside of the class.

Syntax Example:

Class Cyborg

  Private FSerialNumber

  Public FCyborgName

  Public Function IntroduceYourself() 
    Response.Write("Hi, I do not have a name yet.") 
  End Function

End Class

ASP Classic Member Visibility (Private, Public)

VB Classic:

In VB Classic, the keywords Private, Friend, Public, and Static are used to set access levels for declared elements.

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