Assembly: System (in system.dll)
Return ValueA System.Security.Cryptography.X509Certificates object that contains the client's X.509 v.3 certificate.
A call to this method to retrieve the client's X.509 v.3 certificate is in progress and therefore another call to this method cannot be made.
Windows 98, Windows Server 2003, Windows XP Media Center Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.