ClaimsIdentityCollection.Contains 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 specified subject is in the collection.

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


Dim instance As ClaimsIdentityCollection
Dim item As IClaimsIdentity
Dim returnValue As Boolean

returnValue = instance.Contains(item)


Public Function Contains ( _
    item As IClaimsIdentity _
) As Boolean
public bool Contains (
    IClaimsIdentity item
virtual bool Contains (
    IClaimsIdentity^ item
) sealed
public final boolean Contains (
    IClaimsIdentity item
public final function Contains (
    item : IClaimsIdentity
) : boolean


  • item
    The IClaimsIdentity that represents the subject for which to search.

Return Value

true if the specified subject is in the collection; 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.


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


ClaimsIdentityCollection Class
ClaimsIdentityCollection Members
Microsoft.IdentityModel.Claims Namespace

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