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)


Syntax
[SerializableAttribute]
[AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter, 
	Inherited = false)]
[ComVisibleAttribute(true)]
public abstract class CustomConstantAttribute : Attribute
[SerializableAttribute]
[AttributeUsageAttribute(AttributeTargets::Field | AttributeTargets::Parameter, 
	Inherited = false)]
[ComVisibleAttribute(true)]
public ref class CustomConstantAttribute abstract : Attribute
[<AbstractClass>]
[<SerializableAttribute>]
[<AttributeUsageAttribute(AttributeTargets.Field | AttributeTargets.Parameter,
    Inherited = false)>]
[<ComVisibleAttribute(true)>]
type CustomConstantAttribute = 
    class
        inherit Attribute
    end
<SerializableAttribute>
<AttributeUsageAttribute(AttributeTargets.Field Or AttributeTargets.Parameter,
	Inherited := False)>
<ComVisibleAttribute(True)>
Public MustInherit Class CustomConstantAttribute
	Inherits Attribute
Constructors
NameDescription
System_CAPS_protmethod CustomConstantAttribute

Initializes a new instance of the CustomConstantAttribute class.

Properties
NameDescription
System_CAPS_pubproperty

When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)

System_CAPS_pubproperty

Gets the constant value stored by this attribute.

Methods
NameDescription
System_CAPS_pubmethod Equals

This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)

System_CAPS_protmethod Finalize

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethod GetHashCode

Returns the hash code for this instance.(Inherited from Attribute.)

System_CAPS_pubmethod GetType

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethod IsDefaultAttribute

When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)

System_CAPS_pubmethod Match

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)

System_CAPS_protmethod MemberwiseClone

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethod ToString

Returns a string that represents the current object.(Inherited from Object.)

Explicit Interface Implementations
NameDescription
System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetIDsOfNames

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetTypeInfo

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeGetTypeInfoCount

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterface System_CAPS_privmethod _AttributeInvoke

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

Remarks

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.

Version Information
Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
Thread Safety

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

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