DnsPermission.ToXml-Methode

Erstellt eine XML-Codierung einer DnsPermission-Instanz und ihres aktuellen Zustands.

Namespace: System.Net
Assembly: System (in system.dll)

Syntax

'Declaration
Public Overrides Function ToXml As SecurityElement
'Usage
Dim instance As DnsPermission
Dim returnValue As SecurityElement

returnValue = instance.ToXml

public override SecurityElement ToXml ()

public:
virtual SecurityElement^ ToXml () override

public SecurityElement ToXml ()

public override function ToXml () : SecurityElement

Rückgabewert

Eine SecurityElement-Instanz, die eine XML-codierte Darstellung des Sicherheitsobjekts einschließlich der Zustandsinformationen enthält.

Hinweise

Die ToXml-Methode erstellt eine SecurityElement-Instanz, um eine Darstellung der DnsPermission-Instanz einschließlich der Zustandsinformationen in XML zu codieren.

Verwenden Sie die FromXml-Methode, um die Zustandsinformationen aus einer SecurityElement-Instanz wiederherzustellen.

Beispiel

Im folgenden Beispiel wird eine XML-Codierung einer DnsPermission-Instanz erstellt.

Public Sub useDns()
    ' Create a DnsPermission instance.
    Dim permission As New DnsPermission(PermissionState.Unrestricted)
    
    ' Check for permission.
    permission.Demand()
    ' Create a SecurityElement object to hold XML encoding of the DnsPermission instance.
    Dim securityElementObj As SecurityElement = permission.ToXml()
    Console.WriteLine("Tag, Attributes and Values of 'DnsPermission' instance :")
    Console.WriteLine((ControlChars.Cr + ControlChars.Tab + "Tag :" + securityElementObj.Tag))
    ' Print the attributes and values.
    PrintKeysAndValues(securityElementObj.Attributes)
End Sub 'useDns

Private Sub PrintKeysAndValues(myList As Hashtable)
    ' Get the enumerator that can iterate through the hash table.
    Dim myEnumerator As IDictionaryEnumerator = myList.GetEnumerator()
    Console.WriteLine(ControlChars.Cr + 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 'PrintKeysAndValues

public void useDns() {

   // Create a DnsPermission instance.
   DnsPermission permission = new DnsPermission(PermissionState.Unrestricted);

   // Check for permission.
   permission.Demand();
   // Create a SecurityElement object to hold XML encoding of the DnsPermission instance.
   SecurityElement securityElementObj = permission.ToXml();    
   Console.WriteLine("Tag, Attributes and Values of 'DnsPermission' instance :");
   Console.WriteLine("\n\tTag :" + securityElementObj.Tag);
   // Print the attributes and values.
   PrintKeysAndValues(securityElementObj.Attributes);
}

private void PrintKeysAndValues(Hashtable myList) {
   // Get the enumerator that can iterate through the hash table.
   IDictionaryEnumerator myEnumerator = myList.GetEnumerator();
   Console.WriteLine("\n\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^ permission = gcnew DnsPermission( PermissionState::Unrestricted );
      
      // Check for permission.
      permission->Demand();
      // Create a SecurityElement Object* to hold XML encoding of the DnsPermission instance.
      SecurityElement^ securityElementObj = permission->ToXml();
      Console::WriteLine( "Tag, Attributes and Values of 'DnsPermission' instance :" );
      Console::WriteLine( "\n\tTag : {0}", securityElementObj->Tag );
      // Print the attributes and values.
      PrintKeysAndValues( securityElementObj->Attributes );
   }

private:
   void PrintKeysAndValues( Hashtable^ myList )
   {
      // Get the enumerator that can iterate through the hash table.
      IDictionaryEnumerator^ myEnumerator = myList->GetEnumerator();
      Console::WriteLine( "\n\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 permission = new DnsPermission(PermissionState.
        Unrestricted);

    // Check for permission.
    permission.Demand();

    // Create a SecurityElement object to hold XML encoding of the
    // DnsPermission instance.
    SecurityElement securityElementObj = permission.ToXml();
    Console.WriteLine("Tag, Attributes and Values of 'DnsPermission' "
        + "instance :");
    Console.WriteLine("\n\tTag :" + securityElementObj.get_Tag());

    // Print the attributes and values.
    PrintKeysAndValues(securityElementObj.get_Attributes());
} //UseDns

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

Plattformen

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

DnsPermission-Klasse
DnsPermission-Member
System.Net-Namespace