How to: Declare a Property with Mixed Access LevelsĀ 

If you want the Get and Set procedures on a property to have different access levels, you can use the more permissive level in the Property statement and the more restrictive level in either the Get or Set statement. You use mixed access levels on a property when you want certain parts of the code to be able to get the property's value, and certain other parts of the code to be able to change the value.

For more information on access levels, see Access Levels in Visual Basic.

To declare a property with mixed access levels

  1. Declare the property in the normal way, and specify the less restrictive access level (such as Public) in the Property statement.

  2. Declare either the Get or the Set procedure specifying the more restrictive access level (such as Friend).

  3. Do not specify an access level on the other property procedure. It assumes the access level declared in the Property statement. You can restrict access on only one of the property procedures.

    Public Class employee
        Private salaryValue As Double
        Protected Property salary() As Double
            Get
                Return salaryValue
            End Get
            Private Set(ByVal value As Double)
                salaryValue = value
            End Set
        End Property
    End Class
    

    In the preceding example, the Get procedure has the same Protected access as the property itself, while the Set procedure has Private access. A class derived from employee can read the salary value, but only the employee class can set it.

See Also

Tasks

How to: Create a Property
How to: Call a Property Procedure
How to: Declare and Call a Default Property in Visual Basic
How to: Put a Value in a Property
How to: Get a Value from a Property

Reference

Property Statement

Concepts

Procedures in Visual Basic
Property Procedures
Procedure Parameters and Arguments
Differences Between Properties and Variables in Visual Basic