Visual Basic 2005 in a Nutshell, Third Edition

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Chapter 12: The Language Reference

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

Partial Keyword

Syntax

Partial Class className

[statements]

End Class

or:

Partial Structure structureName

[statements]

End Structure

These two syntax examples show only the minimal grammar for the Class and

Structure statements, for demonstration of the Partial keyword only.

Description

The Partial keyword allows a single class or structure definition to be divided into

multiple source code files. At least one of the class or structure portions must include

the

Partial keyword.

For syntax details on using the Partial keyword in context, see the Class...End Class

Statement and the Structure...End Structure Statement entries elsewhere in this chapter.

Example

This example shows a class divided into two distinct files. The first source code file

includes the following code.

Public Class Customer

...statements...

End Class

The second source code file includes this code.

Public Partial Class Customer

...more statements...

End Class

If desired, the Partial keyword could be added to both class component definitions.

Version Differences

The Partial keyword was introduced with Visual Basic 2005.

See Also

Class...End Class Statement, Structure...End Structure Statement

Partition Function

Class

Microsoft.VisualBasic.Interaction

Syntax

Dim result As String = Partition(number, ...