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   ► KBTo/From GuidesVB.Net  Print This     

Self Keyword (VB.Net and Delphi Prism Cross Reference Guide)

By Mike Prestwood

VB.Net versus Delphi Prism: A side by side comparison between VB.Net and Delphi Prism.

 
Language Details
 

Language Details is kind of a catch all for stuff that didn't make it into language basics nor any other category.

Self Keyword

[Other Languages] 
VB.Net:   Me

To refer to the current instance of a class or structure, use the Me keyword. Me provides a way to refer to the specific instance in which the code is currently executing. It is particularly useful for passing information about the currently executing instance.

The Me keyword is also used as a modifier of the first parameter of an extension method.

You cannot use Me with static method functions because static methods do not belong to an object instance. If you try, you'll get an error.

Syntax Example:  
Sub SetBackgroundColor(FormName As Form)
  //FormName.BackColor = ...some color
End Sub
  
//Pass Me.
SetBackgroundColor(Me)
Delphi Prism:   Self

Within the implementation of a method, the identifier Self references the object in which the method is called. The Self variable is an implicit parameter for each object method. A method can use this variable to refer to its owning class.

To refer to the current instance of a class or structure, use the Self keyword. It provides a way to refer to the specific instance in which the code is currently executing. It is particularly useful for passing information about the currently executing instance.

You cannot use it with static method functions because static methods do not belong to an object instance. If you try, you'll get an error.

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