Udostępnij za pośrednictwem


SecurityPermissionFlag Wyliczenie

Definicja

Przestroga

Code Access Security is not supported or honored by the runtime.

Przestroga

CAS support is not available with Silverlight applications.

Określa flagi dostępu dla obiektu uprawnień zabezpieczeń.

To wyliczenie obsługuje bitową kombinację jego wartości składowych.

public enum class SecurityPermissionFlag
[System.Flags]
[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public enum SecurityPermissionFlag
[System.Flags]
public enum SecurityPermissionFlag
[System.Flags]
[System.Serializable]
public enum SecurityPermissionFlag
[System.Flags]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public enum SecurityPermissionFlag
[System.Flags]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Obsolete("CAS support is not available with Silverlight applications.")]
public enum SecurityPermissionFlag
[<System.Flags>]
[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type SecurityPermissionFlag = 
[<System.Flags>]
type SecurityPermissionFlag = 
[<System.Flags>]
[<System.Serializable>]
type SecurityPermissionFlag = 
[<System.Flags>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type SecurityPermissionFlag = 
[<System.Flags>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Obsolete("CAS support is not available with Silverlight applications.")>]
type SecurityPermissionFlag = 
Public Enum SecurityPermissionFlag
Dziedziczenie
SecurityPermissionFlag
Atrybuty

Pola

AllFlags 16383

Nieograniczony stan uprawnień.

Assertion 1

Możliwość potwierdzenia, że wszystkie wywołujące kod mają wymagane uprawnienia do operacji.

BindingRedirects 8192

Uprawnienie do wykonywania jawnego przekierowania powiązania w pliku konfiguracji aplikacji. Obejmuje to przekierowanie zestawów .NET, które zostały ujednolicone, a także inne zestawy znalezione poza platformą .NET.

ControlAppDomain 1024

Możliwość tworzenia i manipulowania elementem AppDomain.

ControlDomainPolicy 256

Możliwość określenia zasad domeny.

ControlEvidence 32

Możliwość przedstawienia dowodów, w tym możliwość zmiany dowodów dostarczonych przez środowisko uruchomieniowe języka wspólnego.

Jest to zaawansowane uprawnienie, które powinno zostać przyznane tylko do wysoce zaufanego kodu.

ControlPolicy 64

Możliwość wyświetlania i modyfikowania zasad.

Jest to zaawansowane uprawnienie, które powinno zostać przyznane tylko do wysoce zaufanego kodu.

ControlPrincipal 512

Możliwość manipulowania obiektem głównym.

ControlThread 16

Możliwość korzystania z pewnych zaawansowanych operacji na wątkach.

Execution 8

Uprawnienie do uruchomienia kodu. Bez tego uprawnienia kod zarządzany nie zostanie wykonany.

Ta flaga nie ma wpływu podczas dynamicznego użycia z modyfikatorami stosu, takimi jak Deny(), Assert()i PermitOnly().

Infrastructure 4096

Uprawnienie do podłączania kodu do infrastruktury środowiska uruchomieniowego języka wspólnego, takich jak dodawanie ujściów kontekstu komunikacji automatycznej, ujścia wysłanników i ujściów dynamicznych.

NoFlags 0

Brak dostępu do zabezpieczeń.

RemotingConfiguration 2048

Uprawnienie do konfigurowania typów i kanałów komunikacji zdalnie.

SerializationFormatter 128

Możliwość świadczenia usług serializacji. Używane przez formatery serializacji.

SkipVerification 4

Możliwość pomijania weryfikacji kodu w tym zestawie. Kod, który jest niezweryfikowalny, można uruchomić, jeśli to uprawnienie zostanie przyznane.

Jest to zaawansowane uprawnienie, które powinno zostać przyznane tylko do wysoce zaufanego kodu.

Ta flaga nie ma wpływu podczas dynamicznego użycia z modyfikatorami stosu, takimi jak Deny(), Assert()i PermitOnly().

UnmanagedCode 2

Możliwość wywoływania niezarządzanych kodu.

Ponieważ kod niezarządzany potencjalnie zezwala na pomijanie innych uprawnień, jest to niebezpieczne uprawnienie, które powinno zostać przyznane tylko wysoce zaufanym kodom. Jest on używany w takich aplikacjach jak wywoływanie kodu natywnego przy użyciu funkcji PInvoke lub międzyoperacyjności COM.

Przykłady

W poniższym przykładzie pokazano użycie wyliczenia SecurityPermissionFlag w celu odmowy i żądania uprawnień zabezpieczeń:

// This sample demonstrates the use of the SecurityPermissionAttribute.
using namespace System;
using namespace System::Security::Permissions;
using namespace System::Security;
class MyClass
{
public:
   static void PermissionDemo()
   {
      try
      {
         DenySecurityPermissions();
         DenyAllSecurityPermissions();
         DoNotDenySecurityPermissions();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( e->Message );
      }

   }


   // This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
   // Set the Assertion property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Assertion=true)]
   // Set the ControlAppDomain property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlAppDomain=true)]
   // Set the ControlDomainPolicy property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlDomainPolicy=true)]
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlEvidence=true)]
   // Set the ControlEvidence property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlPolicy=true)]
   // Set the ControlPolicy property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlPrincipal=true)]
   // Set the ControlPrincipal property.
   // Set the ControlThread property.
   [SecurityPermissionAttribute(SecurityAction::Deny,ControlThread=true)]
   // Set the Execution property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Execution=true)]
   // Set the Flags property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Flags=SecurityPermissionFlag::NoFlags)]
   // Set the Infrastructure property.
   [SecurityPermissionAttribute(SecurityAction::Deny,Infrastructure=true)]
   // Set the RemotingConfiguration property.
   [SecurityPermissionAttribute(SecurityAction::Deny,RemotingConfiguration=true)]
   // Set the SerializationFormatter property.
   [SecurityPermissionAttribute(SecurityAction::Deny,SerializationFormatter=true)]
   // Set the SkipVerification property.
   [SecurityPermissionAttribute(SecurityAction::Deny,SkipVerification=true)]
   // Set the UnmanagedCode property.
   [SecurityPermissionAttribute(SecurityAction::Deny,UnmanagedCode=true)]

   static void DenySecurityPermissions()
   {
      Console::WriteLine( "Executing DenySecurityPermissions." );
      Console::WriteLine( "Denied all permissions individually." );
      TestSecurityPermissions();
   }


   // This method demonstrates the use of SecurityPermissionFlag::AllFlags to deny all security permissions.

   [SecurityPermissionAttribute(SecurityAction::Deny,Flags=SecurityPermissionFlag::AllFlags)]
   static void DenyAllSecurityPermissions()
   {
      Console::WriteLine( "\nExecuting DenyAllSecurityPermissions." );
      Console::WriteLine( "Denied all permissions using SecurityPermissionFlag::AllFlags." );
      TestSecurityPermissions();
   }


   // This method demonstrates the effect of not denying security permissions.
   static void DoNotDenySecurityPermissions()
   {
      Console::WriteLine( "\nExecuting DoNotDenySecurityPermissions." );
      Console::WriteLine( "No permissions have been denied." );
      DemandSecurityPermissions();
   }

   static void TestSecurityPermissions()
   {
      Console::WriteLine( "\nExecuting TestSecurityPermissions.\n" );
      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Assertion );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Assertion" );
         
         // This demand should cause an exception.
         sp->Demand();
         
         // The TestFailed method is called if an exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlAppDomain );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlAppDomain" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlDomainPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlDomainPolicy" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlEvidence );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlEvidence" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPolicy" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPrincipal );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPrincipal" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlThread );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlThread" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Execution );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Execution" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Execution failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Infrastructure );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Infrastructure" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::RemotingConfiguration );
         Console::WriteLine( "Demanding SecurityPermissionFlag::RemotingConfiguration" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SerializationFormatter );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SerializationFormatter" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SkipVerification );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SkipVerification" );
         sp->Demand();
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::UnmanagedCode );
         Console::WriteLine( "Demanding SecurityPermissionFlag::UnmanagedCode" );
         
         // This demand should cause an exception.
         sp->Demand();
         
         // The TestFailed method is called if an exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode failed: {0}", e->Message );
      }

   }

   static void TestFailed()
   {
      Console::WriteLine( "In TestFailed method." );
      Console::WriteLine( "Throwing an exception." );
      throw gcnew Exception;
   }
   
   static void DemandSecurityPermissions()
   {
      Console::WriteLine( "\nExecuting DemandSecurityPermissions.\n" );
      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Assertion );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Assertion" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Assertion failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlAppDomain );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlAppDomain" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlAppDomain failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlDomainPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlDomainPolicy" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlDomainPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlEvidence );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlEvidence" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlEvidence failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPolicy );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPolicy" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPolicy failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlPrincipal );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlPrincipal" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlPrincipal failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::ControlThread );
         Console::WriteLine( "Demanding SecurityPermissionFlag::ControlThread" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::ControlThread failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Execution );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Execution" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::Execution succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Execution failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::Infrastructure );
         Console::WriteLine( "Demanding SecurityPermissionFlag::Infrastructure" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::Infrastructure failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::RemotingConfiguration );
         Console::WriteLine( "Demanding SecurityPermissionFlag::RemotingConfiguration" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::RemotingConfiguration failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SerializationFormatter );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SerializationFormatter" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SerializationFormatter failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::SkipVerification );
         Console::WriteLine( "Demanding SecurityPermissionFlag::SkipVerification" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::SkipVerification failed: {0}", e->Message );
      }

      try
      {
         SecurityPermission^ sp = gcnew SecurityPermission( SecurityPermissionFlag::UnmanagedCode );
         Console::WriteLine( "Demanding SecurityPermissionFlag::UnmanagedCode" );
         sp->Demand();
         Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode succeeded." );
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "Demand for SecurityPermissionFlag::UnmanagedCode failed: {0}", e->Message );
      }

   }

};

int main()
{
   MyClass::PermissionDemo();
}
// This sample demonstrates the use of the SecurityPermissionAttribute.

using System;
using System.Security.Permissions;
using System.Security;

class MyClass
{
    public static void PermissionDemo()
    {
        try
        {
            DenySecurityPermissions();
            DenyAllSecurityPermissions();
            DoNotDenySecurityPermissions();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }
    }

    // This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
    // Set the Assertion property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Assertion = true)]
        // Set the ControlAppDomain property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain = true)]
        // Set the ControlDomainPolicy property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy = true)]
        // Set the ControlEvidence property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence = true)]
        // Set the ControlPolicy property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy = true)]
        // Set the ControlPrincipal property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal = true)]
        // Set the ControlThread property.
    [SecurityPermissionAttribute(SecurityAction.Deny, ControlThread = true)]
        // Set the Execution property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Execution = true)]
        // Set the Flags property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.NoFlags)]
        // Set the Infrastructure property.
    [SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure = true)]
        // Set the RemotingConfiguration property.
    [SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration = true)]
        // Set the SerializationFormatter property.
    [SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter = true)]
        // Set the SkipVerification property.
    [SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification = true)]
        // Set the UnmanagedCode property.
    [SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode = true)]

    public static void DenySecurityPermissions()
    {
        Console.WriteLine("Executing DenySecurityPermissions.");
        Console.WriteLine("Denied all permissions individually.");
        TestSecurityPermissions();
    }

    // This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
    [SecurityPermissionAttribute(SecurityAction.Deny, Flags = SecurityPermissionFlag.AllFlags)]
    public static void DenyAllSecurityPermissions()
    {
        Console.WriteLine("\nExecuting DenyAllSecurityPermissions.");
        Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.");
        TestSecurityPermissions();
    }

    // This method demonstrates the effect of not denying security permissions.
    public static void DoNotDenySecurityPermissions()
    {
        Console.WriteLine("\nExecuting DoNotDenySecurityPermissions.");
        Console.WriteLine("No permissions have been denied.");
        DemandSecurityPermissions();
    }

    public static void TestSecurityPermissions()
    {
        Console.WriteLine("\nExecuting TestSecurityPermissions.\n");
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
            // This demand should cause an exception.
            sp.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
        }
    }

    public static void TestFailed()
    {
        Console.WriteLine("In TestFailed method.");
        Console.WriteLine("Throwing an exception.");
        throw new Exception();
    }
    
    public static void DemandSecurityPermissions()
    {
        Console.WriteLine("\nExecuting DemandSecurityPermissions.\n");
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Assertion);
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlAppDomain);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlEvidence);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPolicy);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlPrincipal);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.ControlThread);
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Execution);
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.Infrastructure);
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.RemotingConfiguration);
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SerializationFormatter);
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.SkipVerification);
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification failed: " + e.Message);
        }
        try
        {
            SecurityPermission sp =
                new SecurityPermission(SecurityPermissionFlag.UnmanagedCode);
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode");
            sp.Demand();
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.");
        }
        catch (Exception e)
        {
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode failed: " + e.Message);
        }
    }

    static void Main(string[] args)
    {
        PermissionDemo();
    }
}
' This sample demonstrates the use of the SecurityPermissionAttribute.
Imports System.Security.Permissions
Imports System.Security

Class [MyClass]

    Public Shared Sub PermissionDemo()
        Try
            DenySecurityPermissions()
            DenyAllSecurityPermissions()
            DoNotDenySecurityPermissions()
        Catch e As Exception
            Console.WriteLine(e.Message.ToString())
        End Try
    End Sub




    ' This method demonstrates the use of the SecurityPermissionAttribute to deny individual security permissions.
    ' Set the Assertion,UnmanagedCode, ControlAppDomain, ControlDomainPolicy, ontrolEvidence, 
    ' ControlPolicy, ControlPrincipal, ControlThread, Execution, Flags, Infrastructure, 
    ' RemotingConfiguration, SerializationFormatter, and SkipVerification properties.
    <SecurityPermissionAttribute(SecurityAction.Deny, Assertion:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlAppDomain:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlDomainPolicy:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlEvidence:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlPolicy:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlPrincipal:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, ControlThread:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, Execution:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, Flags:=SecurityPermissionFlag.NoFlags), _
    SecurityPermissionAttribute(SecurityAction.Deny, Infrastructure:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, RemotingConfiguration:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, SerializationFormatter:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, SkipVerification:=True), _
    SecurityPermissionAttribute(SecurityAction.Deny, UnmanagedCode:=True)> _
    Public Shared Sub DenySecurityPermissions()
        Console.WriteLine("Executing DenySecurityPermissions.")
        Console.WriteLine("Denied all permissions individually.")
        TestSecurityPermissions()
    End Sub


    ' This method demonstrates the use of SecurityPermissionFlag.AllFlags to deny all security permissions.
    <SecurityPermissionAttribute(SecurityAction.Deny, Flags:=SecurityPermissionFlag.AllFlags)> _
    Public Shared Sub DenyAllSecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing DenyAllSecurityPermissions.")
        Console.WriteLine("Denied all permissions using SecurityPermissionFlag.AllFlags.")
        TestSecurityPermissions()
    End Sub


    ' This method demonstrates the effect of not denying security permissions.
    Public Shared Sub DoNotDenySecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing DoNotDenySecurityPermissions.")
        Console.WriteLine("No permissions have been denied.")
        DemandSecurityPermissions()
    End Sub


    Public Shared Sub TestSecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing TestSecurityPermissions." & ControlChars.Lf)
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Assertion)
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion")
            ' This demand should cause an exception.
            sp.Demand()
            ' The TestFailed method is called if an exception is not thrown.
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Assertion failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlAppDomain)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlAppDomain failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlEvidence)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlEvidence failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPrincipal)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPrincipal failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlThread)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlThread failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Execution)
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Execution failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Infrastructure)
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Infrastructure failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.RemotingConfiguration)
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SerializationFormatter)
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SerializationFormatter failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SkipVerification)
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification")
            sp.Demand()
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SkipVerification failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode")
            ' This demand should cause an exception.
            sp.Demand()
            ' The TestFailed method is called if an exception is not thrown.
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.UnmanagedCode failed: " & e.Message))
        End Try
    End Sub


    Public Shared Sub TestFailed()
        Console.WriteLine("In TestFailed method.")
        Console.WriteLine("Throwing an exception.")
        Throw New Exception()
    End Sub

    Public Shared Sub DemandSecurityPermissions()
        Console.WriteLine(ControlChars.Lf & "Executing DemandSecurityPermissions." & ControlChars.Lf)
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Assertion)
            Console.WriteLine("Demanding SecurityPermissionFlag.Assertion")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.Assertion succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Assertion failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlAppDomain)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlAppDomain")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlAppDomain succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlAppDomain failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlDomainPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlDomainPolicy")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlDomainPolicy succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlDomainPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlEvidence)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlEvidence")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlEvidence succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlEvidence failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPolicy)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPolicy")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPolicy succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPolicy failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlPrincipal)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlPrincipal")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlPrincipal succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlPrincipal failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.ControlThread)
            Console.WriteLine("Demanding SecurityPermissionFlag.ControlThread")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.ControlThread succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.ControlThread failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Execution)
            Console.WriteLine("Demanding SecurityPermissionFlag.Execution")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.Execution succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Execution failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.Infrastructure)
            Console.WriteLine("Demanding SecurityPermissionFlag.Infrastructure")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.Infrastructure succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.Infrastructure failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.RemotingConfiguration)
            Console.WriteLine("Demanding SecurityPermissionFlag.RemotingConfiguration")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.RemotingConfiguration succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.RemotingConfiguration failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SerializationFormatter)
            Console.WriteLine("Demanding SecurityPermissionFlag.SerializationFormatter")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.SerializationFormatter succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SerializationFormatter failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.SkipVerification)
            Console.WriteLine("Demanding SecurityPermissionFlag.SkipVerification")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.SkipVerification succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.SkipVerification failed: " & e.Message))
        End Try
        Try
            Dim sp As New SecurityPermission(SecurityPermissionFlag.UnmanagedCode)
            Console.WriteLine("Demanding SecurityPermissionFlag.UnmanagedCode")
            sp.Demand()
            Console.WriteLine("Demand for SecurityPermissionFlag.UnmanagedCode succeeded.")
        Catch e As Exception
            Console.WriteLine(("Demand for SecurityPermissionFlag.UnmanagedCode failed: " & e.Message))
        End Try
    End Sub

    Overloads Shared Sub Main(ByVal args() As String)
        PermissionDemo()
    End Sub
End Class

Uwagi

Przestroga

Zabezpieczenia dostępu kodu (CAS) zostały uznane za przestarzałe we wszystkich wersjach .NET Framework i .NET. Najnowsze wersje platformy .NET nie honorują adnotacji CAS i generują błędy, jeśli są używane interfejsy API związane z usługą CAS. Deweloperzy powinni szukać alternatywnych sposobów wykonywania zadań zabezpieczeń.

Ta wyliczenie jest używana przez program SecurityPermission.

Przestroga

Wiele z tych flag jest zaawansowanych i powinno być udzielanych tylko do wysoce zaufanego kodu.

Dotyczy

Zobacz też