Populates the X509Certificate object with information from a certificate file.
Assembly: mscorlib (in mscorlib.dll)
<ComVisibleAttribute(False)> _
<PermissionSetAttribute(SecurityAction.InheritanceDemand, Unrestricted := True)> _
Public Overridable Sub Import ( _
fileName As String _
)[ComVisibleAttribute(false)]
[PermissionSetAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)]
public virtual void Import(
string fileName
)[ComVisibleAttribute(false)]
[PermissionSetAttribute(SecurityAction::InheritanceDemand, Unrestricted = true)]
public:
virtual void Import(
String^ fileName
)[<ComVisibleAttribute(false)>]
[<PermissionSetAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)>]
abstract Import :
fileName:string -> unit
[<ComVisibleAttribute(false)>]
[<PermissionSetAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)>]
override Import :
fileName:string -> unit Parameters
- fileName
- Type: System
. . :: . String
The name of a certificate file represented as a string.
| Exception | Condition |
|---|---|
| ArgumentException | The fileName parameter is |
This method uses a certificate file (such as a file with a .cer extension) that represents an X.509 certificate, and populates the X509Certificate object with the certificate that the file contains.
The following example loads an X.509 certificate from a file, calls the ToString method, and displays the results to the console.
Imports System
Imports System.Security.Cryptography.X509Certificates
Module X509
Sub Main()
' The path to the certificate.
Dim Certificate As String = "Certificate.cer"
' Load the certificate into an X509Certificate object.
Dim cert As New X509Certificate
cert.Import(Certificate)
' Get the value.
Dim resultsTrue As String = cert.ToString(True)
' Display the value to the console.
Console.WriteLine(resultsTrue)
' Get the value.
Dim resultsFalse As String = cert.ToString(False)
' Display the value to the console.
Console.WriteLine(resultsFalse)
End Sub
End Module
using System;
using System.Security.Cryptography.X509Certificates;
class X509
{
static void Main()
{
// The path to the certificate.
string Certificate = "Certificate.cer";
// Load the certificate into an X509Certificate object.
X509Certificate cert = new X509Certificate();
cert.Import(Certificate);
// Get the value.
string resultsTrue = cert.ToString(true);
// Display the value to the console.
Console.WriteLine(resultsTrue);
// Get the value.
string resultsFalse = cert.ToString(false);
// Display the value to the console.
Console.WriteLine(resultsFalse);
}
}
using namespace System;
using namespace System::Security::Cryptography::X509Certificates;
int main()
{
// The path to the certificate.
String^ Certificate = L"Certificate.cer";
// Load the certificate into an X509Certificate object.
X509Certificate^ cert = gcnew X509Certificate;
cert->Import(Certificate);
// Get the value.
String^ resultsTrue = cert->ToString( true );
// Display the value to the console.
Console::WriteLine( resultsTrue );
// Get the value.
String^ resultsFalse = cert->ToString( false );
// Display the value to the console.
Console::WriteLine( resultsFalse );
}
- SecurityCriticalAttribute
requires full trust for the immediate caller. This class cannot be used by partially trusted or transparent code.
- InheritanceDemand
for full trust for inheritors. This member cannot be inherited by partially trusted code.
- FileIOPermission
for permission to read the file described by the fileName parameter. Security action: Demand. Associated enumeration: EnvironmentPermissionAccess
. . :: . Read - KeyContainerPermission
for permission to create a key container. Security action: Demand. Associated enumeration: KeyContainerPermissionFlags
. . :: . Create
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.