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Class Statement (VBScript)

Declares the name of a class, as well as a definition of the variables, properties, and methods that comprise the class.

 Class name
  statements
End Class 

Arguments

  • name
    Required. Name of the Class; follows standard variable naming conventions.

  • statements
    Required. One or more statements that define the variables, properties, and methods of the Class.

Remarks

Within a Class block, members are declared as either Private or Public using the appropriate declaration statements. Anything declared as Private is visible only within the Class block. Anything declared as Public is visible within the Class block, as well as by code outside the Class block. Anything not explicitly declared as either Private or Public is Public by default. Procedures (either Sub or Function) declared Public within the class block become methods of the class. Public variables serve as properties of the class, as do properties explicitly declared using Property Get, Property Let, and Property Set. Default properties and methods for the class are specified in their declarations using the Default keyword. See the individual declaration statement topics for information on how this keyword is used.

Example

The following example illustrates the use of the Class statement.

Class Customer
 Private m_CustomerName
 Private m_OrderCount
 Private Sub Class_Initialize
 m_CustomerName = ""
 m_OrderCount = 0
 End Sub
 ' CustomerName property.
 Public Property Get CustomerName
 CustomerName = m_CustomerName
 End Property
 Public Property Let CustomerName(custname)
 m_CustomerName = custname
 End Property
 ' OrderCount property (read only).
 Public Property Get OrderCount
 OrderCount = m_OrderCount
 End Property
 ' Methods.
 Public Sub IncreaseOrders(valuetoincrease)
 m_OrderCount = m_OrderCount + valuetoincrease
 End Sub
End Class
Dim c
Set c = New Customer
c.CustomerName = "Fabrikam, Inc."
MsgBox (c.CustomerName)
c.IncreaseOrders(5)
c.IncreaseOrders(3)
MsgBox (c.OrderCount)

Requirements

Version 5

See Also

Reference

Dim Statement

Function Statement (VBScript)

Private Statement

Property Get Statement

Property Let Statement

Property Set Statement

Public Statement

Set Statement

Sub Statement

Change History

Date

History

Reason

March 2009

Added an example.

Customer feedback.


  • Last updated on 2011年10月24日