Option Explicit
Imports System
Imports System.Security.AccessControl
Imports System.Security.Principal
Imports System.Security
Imports Microsoft.Win32
Public Class Example
Public Shared Sub Main()
Dim user As String = Environment.UserDomainName _
& "\" & Environment.UserName
' Create a security object that grants no access.
Dim mSec As New RegistrySecurity()
' Add a rule that grants the current user ReadKey
' rights. ReadKey is a combination of four other
' rights. The rule is inherited by all
' contained subkeys.
Dim rule As New RegistryAccessRule(user, _
RegistryRights.ReadKey, _
InheritanceFlags.ContainerInherit, _
PropagationFlags.None, _
AccessControlType.Allow)
mSec.AddAccessRule(rule)
' Create a rule that allows the current user only the
' right to query the key/value pairs of a key, using
' the same inheritance and propagation flags as the
' first rule. QueryValues is a constituent of
' ReadKey, so when this rule is removed, using the
' RemoveAccessRule method, ReadKey is broken into
' its constituent parts.
rule = New RegistryAccessRule(user, _
RegistryRights.QueryValues, _
InheritanceFlags.ContainerInherit, _
PropagationFlags.None, _
AccessControlType.Allow)
mSec.RemoveAccessRule(rule)
' Display the rules in the security object.
ShowSecurity(mSec)
' Add the second rule back. It merges with the
' existing rule, so that the rule is now displayed
' as ReadKey.
mSec.AddAccessRule(rule)
' Display the rules in the security object.
ShowSecurity(mSec)
End Sub
Private Shared Sub ShowSecurity(ByVal security As RegistrySecurity)
Console.WriteLine(vbCrLf & "Current access rules:" & vbCrLf)
For Each ar As RegistryAccessRule In _
security.GetAccessRules(True, True, GetType(NTAccount))
Console.WriteLine(" User: {0}", ar.IdentityReference)
Console.WriteLine(" Type: {0}", ar.AccessControlType)
Console.WriteLine(" Rights: {0}", ar.RegistryRights)
Console.WriteLine(" Inheritance: {0}", ar.InheritanceFlags)
Console.WriteLine(" Propagation: {0}", ar.PropagationFlags)
Console.WriteLine(" Inherited? {0}", ar.IsInherited)
Console.WriteLine()
Next
End Sub
End Class
'This code example produces output similar to following:
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: EnumerateSubKeys, Notify, ReadPermissions
' Inheritance: ContainerInherit
' Propagation: None
' Inherited? False
'
'
'Current access rules:
'
' User: TestDomain\TestUser
' Type: Allow
' Rights: ReadKey
' Inheritance: ContainerInherit
' Propagation: None
' Inherited? False
'
using System;
using System.Security.AccessControl;
using System.Security.Principal;
using System.Security;
using Microsoft.Win32;
public class Example
{
public static void Main()
{
string user = Environment.UserDomainName + "\\"
+ Environment.UserName;
// Create a security object that grants no access.
RegistrySecurity mSec = new RegistrySecurity();
// Add a rule that grants the current user ReadKey
// rights. ReadKey is a combination of four other
// rights. The rule is inherited by all
// contained subkeys.
RegistryAccessRule rule = new RegistryAccessRule(user,
RegistryRights.ReadKey,
InheritanceFlags.ContainerInherit,
PropagationFlags.None,
AccessControlType.Allow);
mSec.AddAccessRule(rule);
// Create a rule that allows the current user only the
// right to query the key/value pairs of a key, using
// the same inheritance and propagation flags as the
// first rule. QueryValues is a constituent of
// ReadKey, so when this rule is removed, using the
// RemoveAccessRule method, ReadKey is broken into
// its constituent parts.
rule = new RegistryAccessRule(user,
RegistryRights.QueryValues,
InheritanceFlags.ContainerInherit,
PropagationFlags.None,
AccessControlType.Allow);
mSec.RemoveAccessRule(rule);
// Display the rules in the security object.
ShowSecurity(mSec);
// Add the second rule back. It merges with the
// existing rule, so that the rule is now displayed
// as ReadKey.
mSec.AddAccessRule(rule);
// Display the rules in the security object.
ShowSecurity(mSec);
}
private static void ShowSecurity(RegistrySecurity security)
{
Console.WriteLine("\r\nCurrent access rules:\r\n");
foreach( RegistryAccessRule ar in security.GetAccessRules(true, true, typeof(NTAccount)) )
{
Console.WriteLine(" User: {0}", ar.IdentityReference);
Console.WriteLine(" Type: {0}", ar.AccessControlType);
Console.WriteLine(" Rights: {0}", ar.RegistryRights);
Console.WriteLine(" Inheritance: {0}", ar.InheritanceFlags);
Console.WriteLine(" Propagation: {0}", ar.PropagationFlags);
Console.WriteLine(" Inherited? {0}", ar.IsInherited);
Console.WriteLine();
}
}
}
/* This code example produces output similar to following:
Current access rules:
User: TestDomain\TestUser
Type: Allow
Rights: EnumerateSubKeys, Notify, ReadPermissions
Inheritance: ContainerInherit
Propagation: None
Inherited? False
Current access rules:
User: TestDomain\TestUser
Type: Allow
Rights: ReadKey
Inheritance: ContainerInherit
Propagation: None
Inherited? False
*/
平台
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 并不是對每個平台的所有版本都提供支援。有關受支援版本的清單，請參見系統要求。
