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CustomConstantAttribute Class

Defines a constant value that a compiler can persist for a field or method parameter.

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

[SerializableAttribute]
[AttributeUsageAttribute(AttributeTargets.Field|AttributeTargets.Parameter, Inherited = false)]
[ComVisibleAttribute(true)]
public abstract class CustomConstantAttribute : Attribute

You can apply this attribute to fields or parameters.

This class cannot be instantiated.

Compilers should create specific classes, derived from this class, that define the type of the constant value. For example, see the DateTimeConstantAttribute, which allows a compiler to persist an 8-byte DateTime constant for a field or method parameter. If you are using System.Reflection, this pattern of deriving specific classes from CustomConstantAttribute enables you to find all occurrences of custom constant attributes easily.

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

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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