ClaimCollection.Exists 方法

Determines whether the ClaimCollection contains elements that match the conditions defined by the specified predicate.

命名空间: Microsoft.IdentityModel.Claims
程序集: Microsoft.IdentityModel（microsoft.identitymodel.dll 中）

用法

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

returnValue = instance.Exists(match)

声明
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

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

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

此类型的任何公共静态（在 Visual Basic 中为 Shared）成员都是线程安全的。但不能保证任何实例成员是线程安全的。

Windows Server 2003, Windows Vista

Windows Server 2008, Windows Vista, Not tested on Windows XP