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[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Gets the date in local time on which a certificate becomes valid.
Namespace: System.Security.Cryptography.X509Certificates
Assembly: System.Security (in System.Security.dll)
Syntax
'Declaration
Public ReadOnly Property NotBefore As DateTime
public DateTime NotBefore { get; }
public:
property DateTime NotBefore {
DateTime get ();
}
member NotBefore : DateTime with get
function get NotBefore () : DateTime
Property Value
Type: System. . :: . .DateTime
A DateTime object that represents the effective date of the certificate.
Exceptions
| Exception | Condition |
|---|---|
| CryptographicException | The certificate is unreadable. |
Remarks
This property indicates the date on which the certificate becomes valid.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.