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SecurityTokenResolver.TryResolveToken Method (SecurityKeyIdentifier, SecurityToken)

Attempts to retrieve the security token that matches one of the key identifier clauses contained within the specified key identifier.

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

public bool TryResolveToken(
	SecurityKeyIdentifier keyIdentifier,
	out SecurityToken token


Type: System.IdentityModel.Tokens.SecurityKeyIdentifier

The SecurityKeyIdentifier to create a security token for.

Type: System.IdentityModel.Tokens.SecurityToken

When this method returns, contains a SecurityToken that represents the specified key identifier. This parameter is passed uninitialized.

Return Value

Type: System.Boolean
true when a security token can be retrieved for the specified key identifier; otherwise, false.


keyIdentifier is null.

The TryResolveToken and ResolveToken methods differ in what happens when the key identifier cannot be resolved to a security token. The TryResolveToken method returns false, whereas the ResolveToken method throws an exception.

.NET Framework

Supported in: 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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