RegistryPermissionAttribute-Konstruktor

Initialisiert eine neue Instanz der RegistryPermissionAttribute-Klasse mit der angegebenen SecurityAction.

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

Syntax

'Declaration
Public Sub New ( _
    action As SecurityAction _
)
'Usage
Dim action As SecurityAction

Dim instance As New RegistryPermissionAttribute(action)

public RegistryPermissionAttribute (
    SecurityAction action
)

public:
RegistryPermissionAttribute (
    SecurityAction action
)

public RegistryPermissionAttribute (
    SecurityAction action
)

public function RegistryPermissionAttribute (
    action : SecurityAction
)

Parameter

• action
  Einer der SecurityAction-Werte.

Ausnahmen

Beispiel

' This sample demonstrates the use of the RegistryPermissionAttribute.
Imports System
Imports System.Reflection
Imports System.Security.Permissions
Imports System.Security
Imports System.IO
Imports Microsoft.VisualBasic



Class [MyClass]

    Public Shared Sub RegistryPermissionAttributeDemo()
        Try
            PermitOnlyMethod()
        Catch e As Exception
            Console.WriteLine(e.Message.ToString())
        End Try
        Try
            DenyMethod()
        Catch e As Exception
            Console.WriteLine(e.Message.ToString())
        End Try
        Try
            DenyAllMethod()
        Catch e As Exception
            Console.WriteLine(e.Message.ToString())
        End Try
    End Sub 'RegistryPermissionAttributeDemo




    ' This method demonstrates the use of the RegistryPermissionAttribute to create PermitOnly permissions.
    ' Set the Read, Write, Create, and All properties.
    <RegistryPermissionAttribute(SecurityAction.PermitOnly, Read:="HKEY_LOCAL_MACHINE\HARDWARE"), _
    RegistryPermissionAttribute(SecurityAction.PermitOnly, Write:="HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION"), _
    RegistryPermissionAttribute(SecurityAction.PermitOnly, _
        Create:="HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System"), _
    RegistryPermissionAttribute(SecurityAction.PermitOnly, _
        All:="HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor")> _
    Public Shared Sub PermitOnlyMethod()

        Console.WriteLine("Executing PermitOnlyMethod.")
        Console.WriteLine(("Permitting the following accesses:" & ControlChars.Lf & ControlChars.Tab & "Read, KEY_LOCAL_MACHINE\HARDWARE" & ControlChars.Lf & ControlChars.Tab & "Write, HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION" & ControlChars.Lf & ControlChars.Tab & "Create, HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System" & ControlChars.Lf & ControlChars.Tab & "All, HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor"))

        PermitOnlyTest()
    End Sub 'PermitOnlyMethod


    Public Shared Sub PermitOnlyTest()
        Console.WriteLine("Executing PermitOnlyTest.")
        Try
            Dim ps As New PermissionSet(PermissionState.None)
            ps.AddPermission(New RegistryPermission(RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor"))
            Console.WriteLine(("Demanding permission to write " & "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor"))
            ps.Demand()
            Console.WriteLine("Demand succeeded.")
            ps.AddPermission(New RegistryPermission(RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\HARDWARE"))
            Console.WriteLine(("Demanding permission to write to " & "HKEY_LOCAL_MACHINE\HARDWARE."))
            ' This demand should cause an exception.
            ps.Demand()
            ' The TestFailed method is called if an exception is not thrown.
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("An exception was thrown because of a write demand: " & e.Message))
        End Try
    End Sub 'PermitOnlyTest

    ' This method demonstrates the the use of the RegistryPermission attribute to deny a permission. 
    <RegistryPermissionAttribute(SecurityAction.Deny, Write:="HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor")> _
    Public Shared Sub DenyMethod()
        Console.WriteLine("Executing DenyMethod.")
        Console.WriteLine(("Denying permission to write to " & "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor."))

        DenyTestMethod()
    End Sub 'DenyMethod


    Public Shared Sub DenyTestMethod()
        Console.WriteLine("Executing DenyTestMethod.")
        Try
            Dim ps As New PermissionSet(PermissionState.None)
            ps.AddPermission(New RegistryPermission(RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor"))
            Console.WriteLine(("Demanding permission to read " & "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor."))
            ps.Demand()
            Console.WriteLine("Demand succeeded.")
            ps.AddPermission(New RegistryPermission(RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor"))
            Console.WriteLine(("Demanding permission to write to " & "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor."))
            ' This demand should cause an exception.
            ps.Demand()
            ' The TestFailed method is called if an exception is not thrown.
            TestFailed()
        Catch e As Exception
            Console.WriteLine(("An exception was thrown because of a write demand: " & e.Message))
        End Try
    End Sub 'DenyTestMethod

    ' This method demonstrates the use of the EnvironmentPermissionAttribute to deny all permissions.
    <RegistryPermissionAttribute(SecurityAction.Deny, Unrestricted:=True)> _
    Public Shared Sub DenyAllMethod()
        Console.WriteLine("Executing DenyAllMethod.")
        Console.WriteLine("Denied all RegistryPermissions")

        DenyAllTestMethod()
    End Sub 'DenyAllMethod

    ' This method tests to assure permissions have been denied.
    Public Shared Sub DenyAllTestMethod()
        Console.WriteLine("Executing DenyAllTestMethod.")
        Try
            Dim ps As New PermissionSet(PermissionState.None)
            ps.AddPermission(New RegistryPermission(RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor"))
            Console.WriteLine(("Demanding permission to read " + "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor."))
            ' This demand should cause an exception.
            ps.Demand()
            ' The TestFailed method is called if the expected exception is not thrown.
            TestFailed()

        Catch e As Exception

            Console.WriteLine(("An exception was thrown because of a read demand: " + e.Message))
        End Try
    End Sub 'DenyAllTestMethod

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

    Overloads Shared Sub Main(ByVal args() As String)
        RegistryPermissionAttributeDemo()
    End Sub 'Main
End Class '[MyClass] 

// This sample demonstrates the use of the RegistryPermissionAttribute.

using System;
using System.Reflection;
using System.Security.Permissions;
using System.Security;
using System.IO;

class MyClass
{
    public static void RegistryPermissionAttributeDemo()
    {
        try
        {
            PermitOnlyMethod();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }
        try
        {
            DenyMethod();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }
        try
        {
            DenyAllMethod();
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message.ToString());
        }
    }



    // This method demonstrates the use of the RegistryPermissionAttribute to create PermitOnly permissions.
    [RegistryPermissionAttribute(SecurityAction.PermitOnly,
         Read = "HKEY_LOCAL_MACHINE\\HARDWARE")]
    [RegistryPermissionAttribute(SecurityAction.PermitOnly,
         Write = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION")]
    [RegistryPermissionAttribute(SecurityAction.PermitOnly,
         Create = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System")]
    [RegistryPermissionAttribute(SecurityAction.PermitOnly,
         All = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor")]
    public static void PermitOnlyMethod()
    {

        Console.WriteLine("Executing PermitOnlyMethod.");
        Console.WriteLine("Permitting the following accesses:\n\t"
            + "Read, KEY_LOCAL_MACHINE\\HARDWARE\n\t"
            + "Write, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\n\t"
            + "Create, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\n\t"
            + "All, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor");

        PermitOnlyTest();
    }

    public static void PermitOnlyTest()
    {
        Console.WriteLine("Executing PermitOnlyTest.");
        try
        {
            PermissionSet ps = new PermissionSet(PermissionState.None);
            ps.AddPermission(
                new RegistryPermission(RegistryPermissionAccess.Write,
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine("Demanding permission to write " +
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor");
            ps.Demand();
            Console.WriteLine("Demand succeeded.");
            ps.AddPermission(
                new RegistryPermission(RegistryPermissionAccess.Write,
                "HKEY_LOCAL_MACHINE\\HARDWARE"));
            Console.WriteLine("Demanding permission to write to " +
                "HKEY_LOCAL_MACHINE\\HARDWARE.");
            // This demand should cause an exception.
            ps.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("An exception was thrown because of a write demand: " + e.Message);
        }
    }

    // This method demonstrates the the use of the RegistryPermission attribute to deny a permission.
    [RegistryPermissionAttribute(SecurityAction.Deny,
         Write = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor")]
    public static void DenyMethod()
    {
        Console.WriteLine("Executing DenyMethod.");
        Console.WriteLine("Denying permission to write to " +
            "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor.");

        DenyTestMethod();
    }

    public static void DenyTestMethod()
    {
        Console.WriteLine("Executing DenyTestMethod.");
        try
        {
            PermissionSet ps = new PermissionSet(PermissionState.None);
            ps.AddPermission(
                new RegistryPermission(RegistryPermissionAccess.Read,
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine("Demanding permission to read " +
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor.");
            ps.Demand();
            Console.WriteLine("Demand succeeded.");
            ps.AddPermission(
                new RegistryPermission(RegistryPermissionAccess.Write,
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine("Demanding permission to write to " +
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor.");
            // This demand should cause an exception.
            ps.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch (Exception e)
        {
            Console.WriteLine("An exception was thrown because of a write demand: " + e.Message);
        }
    }

    // This method demonstrates the use of the EnvironmentPermissionAttribute to deny all permissions.
    [RegistryPermissionAttribute(SecurityAction.Deny, Unrestricted = true)]
    public static void DenyAllMethod()
    {
        Console.WriteLine("Executing DenyAllMethod.");
        Console.WriteLine("Denied all RegistryPermissions");

        DenyAllTestMethod();
    }
    // This method tests to assure permissions have been denied.
    public static void DenyAllTestMethod()
    {
        Console.WriteLine("Executing DenyAllTestMethod.");
        try
        {
            PermissionSet ps = new PermissionSet(PermissionState.None);
            ps.AddPermission(
                new RegistryPermission(RegistryPermissionAccess.Read,
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine("Demanding permission to read " +
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor.");
            // This demand should cause an exception.
            ps.Demand();
            // The TestFailed method is called if the expected exception is not thrown.
            TestFailed();
        }

        catch (Exception e)

        {
            Console.WriteLine("An exception was thrown because of a read demand: " + e.Message);
        }
    }

    public static void TestFailed()
    {
        Console.WriteLine("In TestFailed method.");
        Console.WriteLine("Throwing an exception.");
        throw new Exception();
    }

    static void Main(string[] args)
    {
        RegistryPermissionAttributeDemo();
    }

}

// This sample demonstrates the use of the RegistryPermissionAttribute.
using namespace System;
using namespace System::Reflection;
using namespace System::Security::Permissions;
using namespace System::Security;
using namespace System::IO;
class MyClass
{
public:
   static void RegistryPermissionAttributeDemo()
   {
      try
      {
         PermitOnlyMethod();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( e->Message );
      }

      try
      {
         DenyMethod();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( e->Message );
      }

      try
      {
         DenyAllMethod();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( e->Message );
      }

   }


   // This method demonstrates the use of the RegistryPermissionAttribute to create PermitOnly permissions.
   [RegistryPermissionAttribute(SecurityAction::PermitOnly,
   Read="HKEY_LOCAL_MACHINE\\HARDWARE")]
   [RegistryPermissionAttribute(SecurityAction::PermitOnly,
   Write="HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION")]
   [RegistryPermissionAttribute(SecurityAction::PermitOnly,
   Create="HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System")]
   [RegistryPermissionAttribute(SecurityAction::PermitOnly,
   All="HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor")]

   static void PermitOnlyMethod()
   {
      Console::WriteLine( "Executing PermitOnlyMethod." );
      Console::WriteLine( "Permitting the following accesses:\n"
      "\t Read, KEY_LOCAL_MACHINE\\HARDWARE\n"
      "\t Write, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\n"
      "\t Create, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\n"
      "\t All, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor" );
      PermitOnlyTest();
   }

   static void PermitOnlyTest()
   {
      Console::WriteLine( "Executing PermitOnlyTest." );
      try
      {
         PermissionSet^ ps = gcnew PermissionSet( PermissionState::None );
         ps->AddPermission( gcnew RegistryPermission( RegistryPermissionAccess::Write,"HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor" ) );
         Console::WriteLine( "Demanding permission to write "
         "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor" );
         ps->Demand();
         Console::WriteLine( "Demand succeeded." );
         ps->AddPermission( gcnew RegistryPermission( RegistryPermissionAccess::Write,"HKEY_LOCAL_MACHINE\\HARDWARE" ) );
         Console::WriteLine( "Demanding permission to write to HKEY_LOCAL_MACHINE\\HARDWARE." );
         
         // This demand should cause an exception.
         ps->Demand();
         
         // The TestFailed method is called if an exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "An exception was thrown because of a write demand: {0}", e->Message );
      }

   }


   // This method demonstrates the the use of the RegistryPermission attribute to deny a permission.

   [RegistryPermissionAttribute(SecurityAction::Deny,
   Write="HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor")]
   static void DenyMethod()
   {
      Console::WriteLine( "Executing DenyMethod." );
      Console::WriteLine( "Denying permission to write to "
      "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor." );
      DenyTestMethod();
   }

   static void DenyTestMethod()
   {
      Console::WriteLine( "Executing DenyTestMethod." );
      try
      {
         PermissionSet^ ps = gcnew PermissionSet( PermissionState::None );
         ps->AddPermission( gcnew RegistryPermission( RegistryPermissionAccess::Read,"HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor" ) );
         Console::WriteLine( "Demanding permission to read "
         "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor." );
         ps->Demand();
         Console::WriteLine( "Demand succeeded." );
         ps->AddPermission( gcnew RegistryPermission( RegistryPermissionAccess::Write,"HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor" ) );
         Console::WriteLine( "Demanding permission to write to "
         "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor." );
         
         // This demand should cause an exception.
         ps->Demand();
         
         // The TestFailed method is called if an exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "An exception was thrown because of a write demand: {0}", e->Message );
      }

   }


   // This method demonstrates the use of the EnvironmentPermissionAttribute to deny all permissions.

   [RegistryPermissionAttribute(SecurityAction::Deny,Unrestricted=true)]
   static void DenyAllMethod()
   {
      Console::WriteLine( "Executing DenyAllMethod." );
      Console::WriteLine( "Denied all RegistryPermissions" );
      DenyAllTestMethod();
   }


   // This method tests to assure permissions have been denied.
   static void DenyAllTestMethod()
   {
      Console::WriteLine( "Executing DenyAllTestMethod." );
      try
      {
         PermissionSet^ ps = gcnew PermissionSet( PermissionState::None );
         ps->AddPermission( gcnew RegistryPermission( RegistryPermissionAccess::Read,"HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor" ) );
         Console::WriteLine( "Demanding permission to read "
         "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor." );
         
         // This demand should cause an exception.
         ps->Demand();
         
         // The TestFailed method is called if the expected exception is not thrown.
         TestFailed();
      }
      catch ( Exception^ e ) 
      {
         Console::WriteLine( "An exception was thrown because of a read demand: {0}", e->Message );
      }

   }

   static void TestFailed()
   {
      Console::WriteLine( "In TestFailed method." );
      Console::WriteLine( "Throwing an exception." );
      throw gcnew Exception;
   }

};

int main()
{
   MyClass::RegistryPermissionAttributeDemo();
}

// This sample demonstrates the use of the RegistryPermissionAttribute.
import System.*;
import System.Reflection.*;
import System.Security.Permissions.*;
import System.Security.*;
import System.IO.*;

class MyClass
{
    public static void RegistryPermissionAttributeDemo() 
    {
        try {
            PermitOnlyMethod();
        }
        catch(System.Exception e) {
            Console.WriteLine(e.get_Message().toString());
        }
        try {
            DenyMethod();
        }
        catch(System.Exception e) {
            Console.WriteLine(e.get_Message().toString());
        }
        try {
            DenyAllMethod();
        }
        catch(System.Exception e) {
            Console.WriteLine(e.get_Message().toString());
        }
    } //RegistryPermissionAttributeDemo   

    // This method demonstrates the use of the RegistryPermissionAttribute
    // to create PermitOnly permissions.
    /** @attribute RegistryPermissionAttribute(SecurityAction.PermitOnly,
        Read = "HKEY_LOCAL_MACHINE\\HARDWARE")
     */

    /** @attribute RegistryPermissionAttribute(SecurityAction.PermitOnly,
        Write = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION")
     */
    
    /** @attribute RegistryPermissionAttribute(SecurityAction.PermitOnly,
        Create = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System")
     */
    
    /** @attribute RegistryPermissionAttribute(SecurityAction.PermitOnly,
        All ="HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\" + 
        "CentralProcessor")
     */
    
    public static void PermitOnlyMethod() 
    {
        Console.WriteLine("Executing PermitOnlyMethod.");
        Console.WriteLine(("Permitting the following accesses:\n\t" 
            + "Read, KEY_LOCAL_MACHINE\\HARDWARE\n\t" 
            + "Write, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\n\t" 
            + "Create, HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\n\t" 
            + "All, HKEY_LOCAL_MACHINE\\HARDWARE\\" 
            + "DESCRIPTION\\System\\CentralProcessor"));
        PermitOnlyTest();
    } //PermitOnlyMethod

    public static void PermitOnlyTest() 
    {
        Console.WriteLine("Executing PermitOnlyTest.");
        try {
            PermissionSet ps =  new PermissionSet(PermissionState.None);
            ps.AddPermission(new RegistryPermission(
                RegistryPermissionAccess.Write,"HKEY_LOCAL_MACHINE\\" 
                + "HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine(("Demanding permission to write " 
                + "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\" 
                + "System\\CentralProcessor"));
            ps.Demand();
            Console.WriteLine("Demand succeeded.");
            ps.AddPermission(new RegistryPermission
                (RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\\" 
                + "HARDWARE"));
            Console.WriteLine(("Demanding permission to write to " 
                + "HKEY_LOCAL_MACHINE\\HARDWARE."));
            // This demand should cause an exception.
            ps.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch(System.Exception e) {
            Console.WriteLine(("An exception was thrown because of a write" 
                + " demand: " + e.get_Message()));
        }
    } //PermitOnlyTest   

    // This method demonstrates the the use of the RegistryPermission
    // attribute to deny a permission.

    /** @attribute RegistryPermissionAttribute(SecurityAction.Deny,
        Write = "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION" +
        "\\System\\CentralProcessor")
     */
    
    public static void DenyMethod() 
    {
        Console.WriteLine("Executing DenyMethod.");
        Console.WriteLine(("Denying permission to write to " 
            + "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\" 
            + "CentralProcessor."));      
        DenyTestMethod();
    } //DenyMethod


    public static void DenyTestMethod() 
    {
        Console.WriteLine("Executing DenyTestMethod.");
        try {
            PermissionSet ps =  new PermissionSet(PermissionState.None);
            ps.AddPermission(
                new RegistryPermission(RegistryPermissionAccess.Read,
                "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\" 
                + "CentralProcessor"));
            Console.WriteLine(("Demanding permission to read " 
                + "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\" 
                + "CentralProcessor."));
            ps.Demand();
            Console.WriteLine("Demand succeeded.");
            ps.AddPermission(new RegistryPermission
                (RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\\" 
                + "HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine(("Demanding permission to write to " 
                + "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\" 
                + "CentralProcessor."));
            // This demand should cause an exception.
            ps.Demand();
            // The TestFailed method is called if an exception is not thrown.
            TestFailed();
        }
        catch(System.Exception e) {
            Console.WriteLine(("An exception was thrown because " 
                + "of a write demand: " + e.get_Message()));
        }
    } //DenyTestMethod   

    // This method demonstrates the use of the EnvironmentPermissionAttribute
    // to deny all permissions.

    /** @attribute RegistryPermissionAttribute(SecurityAction.Deny,
        Unrestricted = true)
     */
    
    public static void DenyAllMethod() 
    {
        Console.WriteLine("Executing DenyAllMethod.");
        Console.WriteLine("Denied all RegistryPermissions");
        DenyAllTestMethod();
    } //DenyAllMethod

    // This method tests to assure permissions have been denied.
    public static void DenyAllTestMethod() 
    {
        Console.WriteLine("Executing DenyAllTestMethod.");
        try {
            PermissionSet ps =  new PermissionSet(PermissionState.None);
            ps.AddPermission(new RegistryPermission
                (RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\\" 
                + "HARDWARE\\DESCRIPTION\\System\\CentralProcessor"));
            Console.WriteLine(("Demanding permission to read " 
                + "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\" 
                + "CentralProcessor."));
            // This demand should cause an exception.
            ps.Demand();
            // The TestFailed method is called if the expected exception 
            // is not thrown.
            TestFailed();
        }
        catch(System.Exception e) {
            Console.WriteLine(("An exception was thrown because " 
                + " of a read demand: " + e.get_Message()));
        }
    } //DenyAllTestMethod

    public static void TestFailed() throws Exception
    {
        Console.WriteLine("In TestFailed method.");
        Console.WriteLine("Throwing an exception.");
        throw new Exception() ;
    } //TestFailed
        
    public static void main(String[] args)
    {
        RegistryPermissionAttributeDemo();
    } //main
} //MyClass 

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

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