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X509ExtensionCollection Class

Represents a collection of X509Extension objects. This class cannot be inherited.


Namespace:  System.Security.Cryptography.X509Certificates
Assembly:  System (in System.dll)

public sealed class X509ExtensionCollection : ICollection, 

The X509ExtensionCollection type exposes the following members.

Public methodX509ExtensionCollectionInitializes a new instance of the X509ExtensionCollection class.

Public propertyCountGets the number of X509Extension objects in a X509ExtensionCollection object.
Public propertyIsSynchronizedGets a value indicating whether the collection is guaranteed to be thread safe.
Public propertyItem[Int32]Gets the X509Extension object at the specified index.
Public propertyItem[String]Gets the first X509Extension object whose value or friendly name is specified by an object identifier (OID).
Public propertySyncRootGets an object that you can use to synchronize access to the X509ExtensionCollection object.

Public methodAddAdds an X509Extension object to an X509ExtensionCollection object.
Public methodCopyToCopies a collection into an array starting at the specified index.
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public methodGetEnumeratorReturns an enumerator that can iterate through an X509ExtensionCollection object.
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

Public Extension MethodAsParallelEnables parallelization of a query. (Defined by ParallelEnumerable.)
Public Extension MethodAsQueryableConverts an IEnumerable to an IQueryable. (Defined by Queryable.)
Public Extension MethodCast<TResult>Casts the elements of an IEnumerable to the specified type. (Defined by Enumerable.)
Public Extension MethodOfType<TResult>Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.)

Explicit interface implemetationPrivate methodICollection.CopyToInfrastructure. Copies the collection into an array starting at the specified index.
Explicit interface implemetationPrivate methodIEnumerable.GetEnumeratorInfrastructure. Returns an enumerator that can iterate through an X509ExtensionCollection object.

This class represents a collection of X509Extension objects associated with a certificate. These extensions can provide additional information about the certificate.

.NET Framework

Supported in: 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.

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