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IdentityReferenceCollection.Contains Method

Indicates whether the IdentityReferenceCollection collection contains the specified IdentityReference object.

Namespace:  System.Security.Principal
Assembly:  mscorlib (in mscorlib.dll)

public bool Contains(
	IdentityReference identity


Type: System.Security.Principal.IdentityReference

The IdentityReference object to check for.

Return Value

Type: System.Boolean
true if the collection contains the specified object.



.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.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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