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Attribute Constructor

Initializes a new instance of the Attribute class.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
'Declaration
Protected Sub New

This constructor is only called by classes that derive from Attribute.

The following code example shows the definition of a custom parameter Attribute class with its constructor.


' Define a custom parameter attribute that takes a single message argument.
<AttributeUsage(AttributeTargets.Parameter)>  _
Public Class ArgumentUsageAttribute
    Inherits Attribute

    ' This is the attribute constructor.
    Public Sub New(UsageMsg As String)
        Me.usageMsg = UsageMsg
    End Sub ' New

    ' usageMsg is storage for the attribute message.
    Protected usageMsg As String

    ' This is the Message property for the attribute.
    Public Property Message() As String
        Get
            Return usageMsg
        End Get
        Set
            usageMsg = value
        End Set
    End Property
End Class ' ArgumentUsageAttribute 


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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