ClaimCollection.Exists Method

[Starting with the .NET Framework 4.5, Windows Identity Foundation (WIF) has been fully integrated into the .NET Framework. The version of WIF addressed by this topic, WIF 3.5, is deprecated and should only be used when developing against the .NET Framework 3.5 SP1 or the .NET Framework 4. For more information about WIF in the .NET Framework 4.5, also known as WIF 4.5, see the Windows Identity Foundation documentation in the .NET Framework 4.5 Development Guide.]

Returns a value that indicates whether the ClaimCollection contains elements that match the conditions defined by the specified predicate.

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

Usage

'Usage
Dim instance As ClaimCollection
Dim match As Predicate(Of Claim)
Dim returnValue As Boolean

returnValue = instance.Exists(match)

Syntax

'Declaration
Public Function Exists ( _
    match As Predicate(Of Claim) _
) As Boolean
public bool Exists (
    Predicate<Claim> match
)
public:
bool Exists (
    Predicate<Claim^>^ match
)
public boolean Exists (
    Predicate<Claim> match
)
public function Exists (
    match : Predicate<Claim>
) : boolean

Parameters

  • match
    The predicate delegate that defines the conditions of the elements to search for.

Return Value

Returns true if the ClaimCollection contains one or more elements that match the conditions defined by the specified predicate; otherwise, false.

Thread Safety

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

Platforms

Target Platforms

Windows 7, Windows Server 2008 R2, Windows Vista SP2, Windows Server 2008 SP2, Windows Server 2003 SP2 (32-bit or 64-bit)

See Also

Reference

ClaimCollection Class
ClaimCollection Members
Microsoft.IdentityModel.Claims Namespace

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