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SecurityTokenSerializer.CanWriteKeyIdentifier Method

Determines whether this serializer can write the specified key identifier.

Namespace:  System.IdentityModel.Selectors
Assembly:  System.IdentityModel (in System.IdentityModel.dll)

public bool CanWriteKeyIdentifier(
	SecurityKeyIdentifier keyIdentifier


Type: System.IdentityModel.Tokens.SecurityKeyIdentifier

A SecurityKeyIdentifier that represents the key identifier to write.

Return Value

Type: System.Boolean
true when this serializer can write the specified key identifier; otherwise, false.


keyIdentifier is null.

Classes that derive from the SecurityTokenSerializer class must override the CanWriteKeyIdentifierCore(SecurityKeyIdentifier) method. The CanWriteKeyIdentifier(SecurityKeyIdentifier) method calls the CanWriteKeyIdentifierCore(SecurityKeyIdentifier) method.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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