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DiscardableAttribute Class

Marks a type definition as discardable.

Namespace:  System.Runtime.CompilerServices
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
<ComVisibleAttribute(True)> _
Public Class DiscardableAttribute _
	Inherits Attribute
'Usage
Dim instance As DiscardableAttribute

A type definition might be marked discardable if it is not referenced by any other code in its assembly. This might be useful for languages that support separate compilation, where it is only at link phase that it becomes known whether any type is actually referenced by other code.

The classes in System.Runtime.CompilerServices are for compiler writers' use only.

The following code example demonstrates how to apply the DiscardableAttribute attribute to a type.

Imports System.Runtime.CompilerServices


<DiscardableAttribute()> Module Program


    Sub Main(ByVal args() As String)
        Console.WriteLine("The DiscardableAttribute attribute was applied.")
    End Sub 


End Module

System.Object
  System.Attribute
    System.Runtime.CompilerServices.DiscardableAttribute

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

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

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