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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
/** @attribute SerializableAttribute() */ 
/** @attribute AttributeUsageAttribute(AttributeTargets.Field|AttributeTargets.Parameter, Inherited=false) */ 
/** @attribute ComVisibleAttribute(true) */ 
public abstract class CustomConstantAttribute extends Attribute
SerializableAttribute 
AttributeUsageAttribute(AttributeTargets.Field|AttributeTargets.Parameter, Inherited=false) 
ComVisibleAttribute(true) 
public abstract class CustomConstantAttribute extends 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 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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