FileInfo.GetAccessControl Methode

public:
 System::Security::AccessControl::FileSecurity ^ GetAccessControl(System::Security::AccessControl::AccessControlSections includeSections);

public System.Security.AccessControl.FileSecurity GetAccessControl(System.Security.AccessControl.AccessControlSections includeSections);

member this.GetAccessControl : System.Security.AccessControl.AccessControlSections -> System.Security.AccessControl.FileSecurity

Public Function GetAccessControl (includeSections As AccessControlSections) As FileSecurity

Parameters

Retouren

Een FileSecurity object dat de toegangsbeheerregels voor het huidige bestand inkapselt.

Uitzonderingen

Opmerkingen

Gebruik de GetAccessControl methode om de ACL-vermeldingen (Access Control List) voor het huidige bestand op te halen.

Een ACL beschrijft personen en groepen die al dan niet rechten hebben voor specifieke acties op het opgegeven bestand. Zie Instructies voor het toevoegen of verwijderen van vermeldingen in toegangsbeheerlijsten voor meer informatie.

public:
 System::Security::AccessControl::FileSecurity ^ GetAccessControl();

public System.Security.AccessControl.FileSecurity GetAccessControl();

member this.GetAccessControl : unit -> System.Security.AccessControl.FileSecurity

Public Function GetAccessControl () As FileSecurity

Retouren

Een FileSecurity object dat de toegangsbeheerregels voor het huidige bestand inkapselt.

Uitzonderingen

Voorbeelden

In het volgende codevoorbeeld worden de GetAccessControl methode en de SetAccessControl methode gebruikt om een ACL-vermelding (Access Control List) toe te voegen en vervolgens uit een bestand te verwijderen. U moet een geldig gebruikers- of groepsaccount opgeven om dit voorbeeld uit te voeren.

using System;
using System.IO;
using System.Security.AccessControl;

namespace FileSystemExample
{
    class FileExample
    {
        public static void Main()
        {
            try
            {
                string FileName = "c:/test.xml";

                Console.WriteLine("Adding access control entry for " + FileName);

                // Add the access control entry to the file.
                // Before compiling this snippet, change MyDomain to your
                // domain name and MyAccessAccount to the name
                // you use to access your domain.
                AddFileSecurity(FileName, @"MyDomain\MyAccessAccount", FileSystemRights.ReadData, AccessControlType.Allow);

                Console.WriteLine("Removing access control entry from " + FileName);

                // Remove the access control entry from the file.
                // Before compiling this snippet, change MyDomain to your
                // domain name and MyAccessAccount to the name
                // you use to access your domain.
                RemoveFileSecurity(FileName, @"MyDomain\MyAccessAccount", FileSystemRights.ReadData, AccessControlType.Allow);

                Console.WriteLine("Done.");
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }
        }

        // Adds an ACL entry on the specified file for the specified account.
        public static void AddFileSecurity(
            string FileName,
            string Account,
            FileSystemRights Rights,
            AccessControlType ControlType
            )
        {
            // Create a new FileInfo object.
            FileInfo fInfo = new(FileName);

            // Get a FileSecurity object that represents the
            // current security settings.
            FileSecurity fSecurity = fInfo.GetAccessControl();

            // Add the FileSystemAccessRule to the security settings.
            fSecurity.AddAccessRule(new FileSystemAccessRule(Account,
                                                            Rights,
                                                            ControlType));

            // Set the new access settings.
            fInfo.SetAccessControl(fSecurity);
        }

        // Removes an ACL entry on the specified file for the specified account.
        public static void RemoveFileSecurity(
            string FileName,
            string Account,
            FileSystemRights Rights,
            AccessControlType ControlType
            )
        {
            // Create a new FileInfo object.
            FileInfo fInfo = new(FileName);

            // Get a FileSecurity object that represents the
            // current security settings.
            FileSecurity fSecurity = fInfo.GetAccessControl();

            // Add the FileSystemAccessRule to the security settings.
            fSecurity.RemoveAccessRule(new FileSystemAccessRule(Account,
                                                            Rights,
                                                            ControlType));

            // Set the new access settings.
            fInfo.SetAccessControl(fSecurity);
        }
    }
}
//This code produces output similar to the following;
//results may vary based on the computer/file structure/etc.:
//
//Adding access control entry for c:\test.xml
//Removing access control entry from c:\test.xml
//Done.
//

Imports System.IO
Imports System.Security.AccessControl



Module FileExample

    Sub Main()
        Try
            Dim FileName As String = "c:\test.xml"

            Console.WriteLine("Adding access control entry for " & FileName)

            ' Add the access control entry to the file.
            ' Before compiling this snippet, change MyDomain to your 
            ' domain name and MyAccessAccount to the name 
            ' you use to access your domain.
            AddFileSecurity(FileName, "MyDomain\\MyAccessAccount", FileSystemRights.ReadData, AccessControlType.Allow)

            Console.WriteLine("Removing access control entry from " & FileName)

            ' Remove the access control entry from the file.
            ' Before compiling this snippet, change MyDomain to your 
            ' domain name and MyAccessAccount to the name 
            ' you use to access your domain.
            RemoveFileSecurity(FileName, "MyDomain\\MyAccessAccount", FileSystemRights.ReadData, AccessControlType.Allow)

            Console.WriteLine("Done.")
        Catch e As Exception
            Console.WriteLine(e)
        End Try

    End Sub


    ' Adds an ACL entry on the specified file for the specified account.
    Sub AddFileSecurity(ByVal FileName As String, ByVal Account As String, ByVal Rights As FileSystemRights, ByVal ControlType As AccessControlType)
        ' Create a new FileInfo object.
        Dim fInfo As New FileInfo(FileName)

        ' Get a FileSecurity object that represents the 
        ' current security settings.
        Dim fSecurity As FileSecurity = fInfo.GetAccessControl()

        ' Add the FileSystemAccessRule to the security settings. 
        fSecurity.AddAccessRule(New FileSystemAccessRule(Account, Rights, ControlType))

        ' Set the new access settings.
        fInfo.SetAccessControl(fSecurity)

    End Sub


    ' Removes an ACL entry on the specified file for the specified account.
    Sub RemoveFileSecurity(ByVal FileName As String, ByVal Account As String, ByVal Rights As FileSystemRights, ByVal ControlType As AccessControlType)
        ' Create a new FileInfo object.
        Dim fInfo As New FileInfo(FileName)

        ' Get a FileSecurity object that represents the 
        ' current security settings.
        Dim fSecurity As FileSecurity = fInfo.GetAccessControl()

        ' Add the FileSystemAccessRule to the security settings. 
        fSecurity.RemoveAccessRule(New FileSystemAccessRule(Account, Rights, ControlType))

        ' Set the new access settings.
        fInfo.SetAccessControl(fSecurity)

    End Sub
End Module
'This code produces output similar to the following; 
'results may vary based on the computer/file structure/etc.:
'
'Adding access control entry for c:\test.xml
'Removing access control entry from c:\test.xml
'Done.
'

Opmerkingen

Gebruik de GetAccessControl methode om de ACL-vermeldingen (Access Control List) voor het huidige bestand op te halen.

Een ACL beschrijft personen en groepen die al dan niet rechten hebben voor specifieke acties op het opgegeven bestand. Zie Instructies voor het toevoegen of verwijderen van vermeldingen in toegangsbeheerlijsten voor meer informatie.