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   ► KBTo/From GuidesASP Classic  Print This     

Member Method (ASP Classic and VB.Net Cross Reference Guide)

By Mike Prestwood

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

 
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 Method

[Other Languages] 

Also known as a Class Method.

A code routine that belongs to the class or an object instance (an instance of the class). Methods that belong to the class are called class methods or static methods. Methods that belong to an object instance are called instance methods, or simply methods.

When a method returns a value, it is a function method. When no value is returned (or void), it is a procedure method.

Methods frequently use method parameters to transfer data. When one object instance calls another object instance using a method with parameters, you call that messaging.

ASP Classic:   Sub, Function

ASP classic uses the keywords sub and function. A sub does not return a value and a function does. Many programmers like to use the optional call keyword when calling a sub to indicate the call is to a procedure.

Syntax Example:
'Declare class.
Class Cyborg
  Public Function IntroduceYourself() 
    Response.Write("Hi, I do not have a name yet.") 
  End Function 
End Class
 
'Create object from class.
Set T1 = new Cyborg
T1.IntroduceYourself() 
VB.Net:   Sub, Function

VB.Net�uses the keywords sub and function. A sub does not return a value and a function does. Many programmers like to use the optional call keyword when calling a sub to indicate the call is to a procedure.

Syntax Example:

Class definition:

Public Class Cyborg
� Inherits Object
 
Public Sub IntroduceYourself()
��� MessageBox.Show("Hi, I do not have a name yet.")
� End Sub
End Class

Some event like a button click:

Dim T1 As New Cyborg
T1.IntroduceYourself()












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