X509Certificate.GetExpirationDateString Method
Returns the expiration date of this X.509v3 certificate.
Assembly: mscorlib (in mscorlib.dll)
The expiration date is the date after which the X.509 certificate is no longer considered valid.
The GetExpirationDateString method returns a string that shows the date formatted in Short Date Pattern followed by the time formatted in Long Time Pattern. The date and time are formatted using the current culture and time zone.
Note
|
|---|
|
This method may return a different string format on Macintosh computers, although the underlying DateTime object will represent the same value. |
The following example uses the GetExpirationDateString method to get the expatriation date of a certificate and displays it to the console.
using System; using System.Security.Cryptography.X509Certificates; public class X509 { public static void Main() { // The path to the certificate. string Certificate = "Certificate.cer"; // Load the certificate into an X509Certificate object. X509Certificate cert = X509Certificate.CreateFromCertFile(Certificate); // Get the value. string results = cert.GetExpirationDateString(); // Display the value to the console. Console.WriteLine(results); } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
