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SecurityTokenSerializer.CanWriteTokenCore Method

Determines whether this serializer can write the specified security token to XML. Called by the base class.

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

protected abstract bool CanWriteTokenCore(
	SecurityToken token


Type: System.IdentityModel.Tokens.SecurityToken

The SecurityToken to convert to XML.

Return Value

Type: System.Boolean
true when the security token can be written; otherwise, false.


token is null.

Classes that derive from the SecurityTokenSerializer class must override the CanWriteTokenCore(SecurityToken) method. The CanWriteToken(SecurityToken) method calls the CanWriteTokenCore(SecurityToken) method.

.NET Framework

Supported in: 4.6, 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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