ReflectionPermission.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 ReflectionPermission
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

Ausnahmetyp	Bedingung
ArgumentNullException	Der esd-Parameter ist NULL (Nothing in Visual Basic).
ArgumentException	Der esd-Parameter ist kein gültiges Berechtigungselement. – oder – Die Versionsnummer des esd-Parameters ist ungültig.

Beispiel

    Private Function ToFromXmlDemo() As Boolean

        Dim returnValue As Boolean = True

        Dim reflection1 As ReflectionPermissionFlag
        Dim reflectionPerm1, reflectionPerm2 As ReflectionPermission
        Dim reflectionGen1 As New ReflectionGenerator()
        Dim reflectionGen2 As New ReflectionGenerator()
        reflectionGen1.ResetIndex()
        While reflectionGen1.CreateReflection(reflection1)
            reflectionPerm1 = New ReflectionPermission(reflection1)
            Console.WriteLine("********************************************************" & ControlChars.Lf)
            reflectionGen2.ResetIndex()
            Try
                reflectionPerm2 = New ReflectionPermission(PermissionState.None)
                reflectionPerm2.FromXml(reflectionPerm1.ToXml())
                Console.WriteLine(("Result of ToFromXml = " & reflectionPerm2.ToString()))

            Catch e As Exception
                Console.WriteLine(("ToFromXml failed :" & reflectionPerm1.ToString() & e.ToString()))

            End Try
ContinueWhile1:
        End While

        Return returnValue
    End Function 'ToFromXmlDemo

private bool ToFromXmlDemo()
{

    bool returnValue = true;

    ReflectionPermissionFlag reflection1;
    ReflectionPermission reflectionPerm1, reflectionPerm2;
    ReflectionGenerator reflectionGen1 = new ReflectionGenerator();
    ReflectionGenerator reflectionGen2 = new ReflectionGenerator();
    reflectionGen1.ResetIndex();
    while (reflectionGen1.CreateReflection(out reflection1))
    {
        reflectionPerm1 = new ReflectionPermission(reflection1);
        Console.WriteLine("********************************************************\n");
        reflectionGen2.ResetIndex();
        try
        {
            reflectionPerm2 = new ReflectionPermission(PermissionState.None);
            reflectionPerm2.FromXml(reflectionPerm1.ToXml());
            Console.WriteLine("Result of ToFromXml = " +
                reflectionPerm2.ToString());

        }
        catch (Exception e)
        {
            Console.WriteLine("ToFromXml failed :" + reflectionPerm1.ToString() + e);
            continue;
        }
    }

    return returnValue;

}

   bool ToFromXmlDemo()
   {
      bool returnValue = true;
      ReflectionPermissionFlag reflection1;
      ReflectionPermission^ reflectionPerm1;
      ReflectionPermission^ reflectionPerm2;
      ReflectionGenerator^ reflectionGen1 = gcnew ReflectionGenerator;
      ReflectionGenerator^ reflectionGen2 = gcnew ReflectionGenerator;
      reflectionGen1->ResetIndex();
      while ( reflectionGen1->CreateReflection(  &reflection1 ) )
      {
         reflectionPerm1 = gcnew ReflectionPermission( reflection1 );
         Console::WriteLine( "********************************************************\n" );
         reflectionGen2->ResetIndex();
         try
         {
            reflectionPerm2 = gcnew ReflectionPermission( PermissionState::None );
            reflectionPerm2->FromXml( reflectionPerm1->ToXml() );
            Console::WriteLine( "Result of ToFromXml = {0}", reflectionPerm2 );
         }
         catch ( Exception^ e ) 
         {
            Console::WriteLine( "ToFromXml failed : {0}{1}", reflectionPerm1, e );
            continue;
         }

      }

      return returnValue;
   }


public:

private boolean ToFromXmlDemo() 
{
    boolean returnValue = true;
    ReflectionPermissionFlag reflection1[] = 
        new ReflectionPermissionFlag[1];
    ReflectionPermission reflectionPerm1[] = 
        new ReflectionPermission[1];
    ReflectionPermission reflectionPerm2[] = 
        new ReflectionPermission[1];
    ReflectionGenerator reflectionGen1 =  
        new ReflectionGenerator();
    ReflectionGenerator reflectionGen2 =  
        new ReflectionGenerator();
    reflectionGen1.ResetIndex();
    while(reflectionGen1.CreateReflection(reflectionPerm1, reflection1)) {
        if (reflectionPerm1[0] == null) {
            continue ;
        }
        Console.WriteLine("**************************************" 
            + "******************\n");
        reflectionGen2.ResetIndex();
        try {
            reflectionPerm2[0] = 
                new ReflectionPermission(PermissionState.None);
            reflectionPerm2[0].FromXml(reflectionPerm1[0].ToXml());
            Console.WriteLine(("Result of ToFromXml = " 
                + reflectionPerm2[0].ToString()));
        }
        catch(System.Exception e) {
            Console.WriteLine(("ToFromXml failed :" 
                + reflectionPerm1[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

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