Provides support for type equivalence.
Assembly: mscorlib (in mscorlib.dll)
'Declaration <AttributeUsageAttribute(AttributeTargets.Struct Or AttributeTargets.Enum Or AttributeTargets.Interface Or AttributeTargets.Delegate, AllowMultiple := False, _ Inherited := False)> _ <ComVisibleAttribute(False)> _ Public NotInheritable Class TypeIdentifierAttribute _ Inherits Attribute
Thetype exposes the following members.
|Identifier||Gets the value of the identifier parameter that was passed to the TypeIdentifierAttribute(String, String) constructor.|
|Scope||Gets the value of the scope parameter that was passed to the TypeIdentifierAttribute(String, String) constructor.|
|TypeId||When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute.)|
|Equals||Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)|
|GetHashCode||Returns the hash code for this instance. (Inherited from Attribute.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|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.)|
|Match||When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
|_Attribute.GetIDsOfNames||Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute.)|
|_Attribute.GetTypeInfo||Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute.)|
|_Attribute.GetTypeInfoCount||Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute.)|
|_Attribute.Invoke||Provides access to properties and methods exposed by an object. (Inherited from Attribute.)|
The attribute is primarily emitted by compilers. It serves two purposes:
For all imported types, it indicates that the type is intended to be used for type equivalence.
For types that don’t have GUIDs in their type library, it has a constructor that takes two strings (scope and identifier). These are combined into a GUID and become the key that is used for type equivalence.
Type equivalence is discussed in the Type.IsEquivalentTo topic.
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.