DnsPermission.Copy Méthode

Définition

Espace de noms:

System.Net

Assembly:

System.Security.Permissions.dll

Assembly:

System.dll

Crée une copie identique de l’instance d’autorisation actuelle.

public:
 override System::Security::IPermission ^ Copy();

public override System.Security.IPermission Copy ();

override this.Copy : unit -> System.Security.IPermission

Public Overrides Function Copy () As IPermission

Retours

IPermission

Nouvelle instance de la classe DnsPermission qui est une copie identique de l’instance actuelle.

Exemples

L’exemple suivant crée une copie identique d’une instance existante DnsPermission .

public:
   void UseDns()
   {
      // Create a DnsPermission instance.
      DnsPermission^ myPermission = gcnew DnsPermission( PermissionState::Unrestricted );
      // Check for permission.
      myPermission->Demand();
      // Create an identical copy of the above 'DnsPermission' Object*.
      DnsPermission^ myPermissionCopy = dynamic_cast<DnsPermission^>(myPermission->Copy());
      Console::WriteLine( "Attributes and Values of 'DnsPermission' instance :" );
      // Print the attributes and values.
      PrintKeysAndValues( myPermission->ToXml()->Attributes );
      Console::WriteLine( "Attribute and values of copied instance :" );
      PrintKeysAndValues( myPermissionCopy->ToXml()->Attributes );
   }

private:
   void PrintKeysAndValues( Hashtable^ myHashtable )
   {
      // Get the enumerator that can iterate through the hash table.
      IDictionaryEnumerator^ myEnumerator = myHashtable->GetEnumerator();
      Console::WriteLine( "\t-KEY-\t-VALUE-" );
      while ( myEnumerator->MoveNext() )
      {
         Console::WriteLine( "\t {0}:\t {1}", myEnumerator->Key, myEnumerator->Value );
      }
      Console::WriteLine();
   }

public void UseDns() {
   // Create a DnsPermission instance.
   DnsPermission myPermission = new DnsPermission(PermissionState.Unrestricted);
   // Check for permission.
   myPermission.Demand();
   // Create an identical copy of the above 'DnsPermission' object.
   DnsPermission myPermissionCopy = (DnsPermission)myPermission.Copy();
   Console.WriteLine("Attributes and Values of 'DnsPermission' instance :");
   // Print the attributes and values.
   PrintKeysAndValues(myPermission.ToXml().Attributes);
   Console.WriteLine("Attribute and values of copied instance :");
   PrintKeysAndValues(myPermissionCopy.ToXml().Attributes);
}

private void PrintKeysAndValues(Hashtable myHashtable) {
   // Get the enumerator that can iterate through the hash table.
   IDictionaryEnumerator myEnumerator = myHashtable.GetEnumerator();
   Console.WriteLine("\t-KEY-\t-VALUE-");
   while (myEnumerator.MoveNext())
      Console.WriteLine("\t{0}:\t{1}", myEnumerator.Key, myEnumerator.Value);
   Console.WriteLine();
}

Public Sub UseDns()
    ' Create a DnsPermission instance.
    Dim myPermission As New DnsPermission(PermissionState.Unrestricted)
    ' Check for permission.
    myPermission.Demand()
    ' Create an identical copy of the above DnsPermission object.
    Dim myPermissionCopy As DnsPermission = CType(myPermission.Copy(), DnsPermission)
    Console.WriteLine("Attributes and Values of 'DnsPermission' instance :")
    ' Print the attributes and values.
    PrintKeysAndValues(myPermission.ToXml().Attributes)
    Console.WriteLine("Attribute and values of copied instance :")
    PrintKeysAndValues(myPermissionCopy.ToXml().Attributes)
End Sub


Private Sub PrintKeysAndValues(myHashtable As Hashtable)
    ' Get the enumerator that can iterate through he hash table.
    Dim myEnumerator As IDictionaryEnumerator = myHashtable.GetEnumerator()
    Console.WriteLine(ControlChars.Tab + "-KEY-" + ControlChars.Tab + "-VALUE-")
    While myEnumerator.MoveNext()
        Console.WriteLine(ControlChars.Tab + "{0}:" + ControlChars.Tab + "{1}", myEnumerator.Key, myEnumerator.Value)
    End While
    Console.WriteLine()
End Sub

Remarques

Une copie d’une DnsPermission instance fournit le même accès aux serveurs DNS que l’instance d’autorisation d’origine.