ZoneIdentityPermission.FromXml-Methode

Rekonstruiert aus einer XML-Codierung eine Berechtigung mit einem angegebenen Zustand.

Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)

Syntax

'Declaration
Public Overrides Sub FromXml ( _
    esd As SecurityElement _
)
'Usage
Dim instance As ZoneIdentityPermission
Dim esd As SecurityElement

instance.FromXml(esd)

public override void FromXml (
    SecurityElement esd
)

public:
virtual void FromXml (
    SecurityElement^ esd
) override

public void FromXml (
    SecurityElement esd
)

public override function FromXml (
    esd : SecurityElement
)

Parameter

• esd
  Die XML-Codierung, die zum Wiederherstellen der Berechtigung verwendet werden soll.

Ausnahmen

Beispiel

        ' ToXml creates an XML encoding of the permission and its current state; 
        ' FromXml reconstructs a permission with the specified state from the XML encoding. 
        Private Function ToFromXmlDemo() As Boolean

            Dim returnValue As Boolean = True

            Dim zone1 As SecurityZone
            Dim zoneIdPerm1, zoneIdPerm2 As ZoneIdentityPermission
            Dim zoneGen1 As New ZoneGenerator()
            Dim zoneGen2 As New ZoneGenerator()
            zoneGen1.ResetIndex()
            While zoneGen1.CreateZone(zone1)
                zoneIdPerm1 = New ZoneIdentityPermission(zone1)
                Console.WriteLine("********************************************************" & ControlChars.Cr)
                zoneGen2.ResetIndex()
                Try
                    zoneIdPerm2 = New ZoneIdentityPermission(PermissionState.None)
                    zoneIdPerm2.FromXml(zoneIdPerm1.ToXml())
                    Console.WriteLine(("Result of ToFromXml = " & zoneIdPerm2.ToString()))

                Catch e As Exception
                    Console.WriteLine(("ToFromXml failed :" & zoneIdPerm1.ToString() & e.ToString()))
                    GoTo ContinueWhile1
                End Try
ContinueWhile1:
            End While

            Return returnValue
        End Function 'ToFromXmlDemo

// ToXml creates an XML encoding of the permission and its current state;
// FromXml reconstructs a permission with the specified state from the XML encoding.
private bool ToFromXmlDemo()
{

    bool returnValue = true;

    SecurityZone zone1;
    ZoneIdentityPermission zoneIdPerm1, zoneIdPerm2;
    ZoneGenerator zoneGen1 = new ZoneGenerator();
    ZoneGenerator zoneGen2 = new ZoneGenerator();
    zoneGen1.ResetIndex();
    while (zoneGen1.CreateZone(out zone1))
    {
        zoneIdPerm1 = new ZoneIdentityPermission( zone1);
        Console.WriteLine("********************************************************\n");
        zoneGen2.ResetIndex();
        try
        {
            zoneIdPerm2 = new ZoneIdentityPermission(PermissionState.None);
            zoneIdPerm2.FromXml(zoneIdPerm1.ToXml());
            Console.WriteLine("Result of ToFromXml = " +
                zoneIdPerm2.ToString());

        }
        catch (Exception e)
        {
            Console.WriteLine("ToFromXml failed :" + zoneIdPerm1.ToString() + e);
            continue;
        }
    }

    return returnValue;

}

   // ToXml creates an XML encoding of the permission and its current state;
   // FromXml reconstructs a permission with the specified state from the XML encoding.
   bool ToFromXmlDemo()
   {
      bool returnValue = true;
      SecurityZone zone1;
      ZoneIdentityPermission^ zoneIdPerm1;
      ZoneIdentityPermission^ zoneIdPerm2;
      ZoneGenerator^ zoneGen1 = gcnew ZoneGenerator;
      ZoneGenerator^ zoneGen2 = gcnew ZoneGenerator;
      zoneGen1->ResetIndex();
      while ( zoneGen1->CreateZone(  &zone1 ) )
      {
         zoneIdPerm1 = gcnew ZoneIdentityPermission( zone1 );

         Console::WriteLine( "********************************************************\n" );
         zoneGen2->ResetIndex();
         try
         {
            zoneIdPerm2 = gcnew ZoneIdentityPermission( PermissionState::None );
            zoneIdPerm2->FromXml( zoneIdPerm1->ToXml() );
            Console::WriteLine( "Result of ToFromXml = {0}", zoneIdPerm2 );
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( "ToFromXml failed : {0}{1}", zoneIdPerm1, e );
            continue;
         }

      }

      return returnValue;
   }


public:

// ToXml creates an XML encoding of the permission and its current state;
// FromXml reconstructs a permission with the specified 
// state from the XML encoding.
private boolean ToFromXmlDemo()
{
    boolean returnValue = true;
    SecurityZone zone1[] = new SecurityZone[1];
    ZoneIdentityPermission zoneIdPerm1[] = new
    ZoneIdentityPermission[1];
    ZoneIdentityPermission zoneIdPerm2 = null;
    ZoneGenerator zoneGen1 = new ZoneGenerator();
    ZoneGenerator zoneGen2 = new ZoneGenerator();

    zoneGen1.ResetIndex();
    while (zoneGen1.CreateZone(zoneIdPerm1, zone1)) {
        if (zoneIdPerm1[0] == null) {
            continue;
        }
        Console.WriteLine("*********************************" 
            + "***********************\n");
        zoneGen2.ResetIndex();
        try {
            zoneIdPerm2 = new ZoneIdentityPermission(PermissionState.None);
            zoneIdPerm2.FromXml(zoneIdPerm1[0].ToXml());
            Console.WriteLine(("Result of ToFromXml = " 
                + zoneIdPerm2.ToString()));
        }
        catch (System.Exception e) {
            Console.WriteLine(("ToFromXml failed :" 
                + zoneIdPerm1[0].ToString() + e));
            continue;
        }
    }
    return returnValue;
} //ToFromXmlDemo

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

ZoneIdentityPermission-Klasse
ZoneIdentityPermission-Member
System.Security.Permissions-Namespace