FtpWebRequest.ClientCertificates Property

Gets the certificates used for establishing an encrypted connection to the FTP server.

Namespace: System.Net
Assembly: System (in system.dll)

Public Property ClientCertificates As X509CertificateCollection
Dim instance As FtpWebRequest
Dim value As X509CertificateCollection

value = instance.ClientCertificates

instance.ClientCertificates = value
/** @property */
public X509CertificateCollection get_ClientCertificates ()

/** @property */
public void set_ClientCertificates (X509CertificateCollection value)

public function get ClientCertificates () : X509CertificateCollection

public function set ClientCertificates (value : X509CertificateCollection)

Not applicable.

Property Value

An X509CertificateCollection object that contains the client certificates.

Client certificates are used to authenticate the client during the initial SSL connection negotiation. For more information, see EnableSsl.


The .NET Framework caches SSL sessions as they are created and attempts to reuse a cached session for a new request, if possible. When attempting to reuse an SSL session, the .NET Framework uses the first element of ClientCertificates (if there is one), or tries to reuse an anonymous session if ClientCertificates is empty.

Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition Platform Note: The .NET Framework attempts to reuse an SSL session only if a client certificate is not required.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0