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ClaimSet Class

Represents the collection of claims that are associated with an entity.

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

[DataContractAttribute(Namespace = "")]
public abstract class ClaimSet : IEnumerable<Claim>, 

After the ClaimSet class has been created, it cannot be changed.

Examining the content of a ClaimSet for particular types of claims is a common task when using claim-based authorization. To examine a ClaimSet for the presence of particular claims, use the FindClaims method. The method provides better performance than iterating directly over the ClaimSet.

public class MyServiceAuthorizationManager : ServiceAuthorizationManager

   protected override bool CheckAccessCore(OperationContext operationContext)
        // Extract the action URI from the OperationContext. Match this against the claims 
        // in the AuthorizationContext.

        string action = operationContext.RequestContext.RequestMessage.Headers.Action;
        Console.WriteLine("action: {0}", action);

        // Iterate through the various claim sets in the AuthorizationContext. 
        foreach(ClaimSet cs in operationContext.ServiceSecurityContext.AuthorizationContext.ClaimSets)
            // Examine only those claim sets issued by System. 
            if (cs.Issuer == ClaimSet.System)
                // Iterate through claims of type "".
                foreach (Claim c in cs.FindClaims("", 
                    // Write the claim resource to the console.
                    Console.WriteLine("resource: {0}", c.Resource.ToString());

                    // If the claim resource matches the action URI then return true to allow access. 
                    if (action == c.Resource.ToString())
                        return true;

        // If this point is reached, return false to deny access. 
        return false;                 


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

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0