DirectoryInfo.GetAccessControl Metode

Definisi

Ruang nama:: System.IO

Rakitan:: mscorlib.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mendapatkan entri daftar kontrol akses (ACL) untuk direktori saat ini.

Overload

Nama	Deskripsi
GetAccessControl()	DirectorySecurity Mendapatkan objek yang merangkum entri daftar kontrol akses (ACL) untuk direktori yang dijelaskan oleh objek saat iniDirectoryInfo.
GetAccessControl(AccessControlSections)	DirectorySecurity Mendapatkan objek yang merangkum jenis entri daftar kontrol akses (ACL) yang ditentukan untuk direktori yang dijelaskan oleh objek saat iniDirectoryInfo.

Keterangan

Gunakan GetAccessControl metode untuk mengambil entri daftar kontrol akses (ACL) untuk file saat ini.

Untuk informasi selengkapnya, lihat Cara: Menambahkan atau Menghapus Entri Daftar Kontrol Akses.

GetAccessControl()

DirectorySecurity Mendapatkan objek yang merangkum entri daftar kontrol akses (ACL) untuk direktori yang dijelaskan oleh objek saat iniDirectoryInfo.

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

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

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

Public Function GetAccessControl () As DirectorySecurity

Mengembalikan

DirectorySecurity

Objek DirectorySecurity yang merangkum aturan kontrol akses untuk direktori.

Pengecualian

SystemException

Direktori tidak dapat ditemukan atau dimodifikasi.

UnauthorizedAccessException

Direktori bersifat baca-saja.

-atau-

Operasi ini tidak didukung pada platform saat ini.

-atau-

Pemanggil tidak memiliki izin yang diperlukan.

IOException

Terjadi kesalahan I/O saat membuka direktori.

Contoh

Contoh berikut menggunakan GetAccessControl metode dan SetAccessControl untuk menambahkan lalu menghapus entri daftar kontrol akses (ACL) dari direktori.

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

namespace FileSystemExample
{
    class DirectoryExample
    {
        public static void Main()
        {
            try
            {
                string DirectoryName = "TestDirectory";

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

                // Add the access control entry to the directory.
                AddDirectorySecurity(DirectoryName, @"MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow);

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

                // Remove the access control entry from the directory.
                RemoveDirectorySecurity(DirectoryName, @"MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow);

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

            Console.ReadLine();
        }

        // Adds an ACL entry on the specified directory for the specified account.
        public static void AddDirectorySecurity(
            string DirectoryName,
            string Account,
            FileSystemRights Rights,
            AccessControlType ControlType
            )
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new(DirectoryName);

            // Get a DirectorySecurity object that represents the
            // current security settings.
            DirectorySecurity dSecurity = dInfo.GetAccessControl();

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

            // Set the new access settings.
            dInfo.SetAccessControl(dSecurity);
        }

        // Removes an ACL entry on the specified directory for the specified account.
        public static void RemoveDirectorySecurity(
            string DirectoryName,
            string Account,
            FileSystemRights Rights,
            AccessControlType ControlType
            )
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new(DirectoryName);

            // Get a DirectorySecurity object that represents the
            // current security settings.
            DirectorySecurity dSecurity = dInfo.GetAccessControl();

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

            // Set the new access settings.
            dInfo.SetAccessControl(dSecurity);
        }
    }
}

open System
open System.IO
open System.Security.AccessControl

// Adds an ACL entry on the specified directory for the specified account.
let addDirectorySecurity fileName (account: string) rights controlType =
    // Create a new DirectoryInfo object.
    let dInfo = DirectoryInfo fileName

    // Get a DirectorySecurity object that represents the
    // current security settings.
    let dSecurity = dInfo.GetAccessControl()

    // Add the FileSystemAccessRule to the security settings.
    dSecurity.AddAccessRule(FileSystemAccessRule(account, rights, controlType))

    // Set the new access settings.
    dInfo.SetAccessControl dSecurity

// Removes an ACL entry on the specified directory for the specified account.
let removeDirectorySecurity fileName (account: string) rights controlType =
    // Create a new DirectoryInfo object.
    let dInfo = DirectoryInfo fileName

    // Get a DirectorySecurity object that represents the
    // current security settings.
    let dSecurity = dInfo.GetAccessControl()

    // Add the FileSystemAccessRule to the security settings.
    dSecurity.RemoveAccessRule(FileSystemAccessRule(account, rights, controlType)) |> ignore

    // Set the new access settings.
    dInfo.SetAccessControl dSecurity

try
    let DirectoryName = "TestDirectory"

    printfn $"Adding access control entry for {DirectoryName}"

    // Add the access control entry to the directory.
    addDirectorySecurity DirectoryName @"MYDOMAIN\MyAccount" FileSystemRights.ReadData AccessControlType.Allow

    printfn $"Removing access control entry from {DirectoryName}"

    // Remove the access control entry from the directory.
    removeDirectorySecurity DirectoryName @"MYDOMAIN\MyAccount" FileSystemRights.ReadData AccessControlType.Allow

    printfn "Done."
with e ->
    printfn $"{e}"

Imports System.IO
Imports System.Security.AccessControl



Module DirectoryExample

    Sub Main()
        Try
            Dim DirectoryName As String = "TestDirectory"

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

            ' Add the access control entry to the directory.
            AddDirectorySecurity(DirectoryName, "MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow)

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

            ' Remove the access control entry from the directory.
            RemoveDirectorySecurity(DirectoryName, "MYDOMAIN\MyAccount", FileSystemRights.ReadData, AccessControlType.Allow)

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

        Console.ReadLine()

    End Sub


    ' Adds an ACL entry on the specified directory for the specified account.
    Sub AddDirectorySecurity(ByVal FileName As String, ByVal Account As String, ByVal Rights As FileSystemRights, ByVal ControlType As AccessControlType)
        ' Create a new DirectoryInfoobject.
        Dim dInfo As New DirectoryInfo(FileName)

        ' Get a DirectorySecurity object that represents the 
        ' current security settings.
        Dim dSecurity As DirectorySecurity = dInfo.GetAccessControl()

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

        ' Set the new access settings.
        dInfo.SetAccessControl(dSecurity)

    End Sub


    ' Removes an ACL entry on the specified directory for the specified account.
    Sub RemoveDirectorySecurity(ByVal FileName As String, ByVal Account As String, ByVal Rights As FileSystemRights, ByVal ControlType As AccessControlType)
        ' Create a new DirectoryInfo object.
        Dim dInfo As New DirectoryInfo(FileName)

        ' Get a DirectorySecurity object that represents the 
        ' current security settings.
        Dim dSecurity As DirectorySecurity = dInfo.GetAccessControl()

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

        ' Set the new access settings.
        dInfo.SetAccessControl(dSecurity)

    End Sub
End Module

Keterangan

Memanggil kelebihan beban metode ini setara dengan memanggil kelebihan metode GetAccessControl dan menentukan bagian kontrol akses AccessControlSections.Access | AccessControlSections.Owner | AccessControlSections.Group (AccessControlSections.AccessOrAccessControlSections.OwnerOrAccessControlSections.Group di Visual Basic).

ACL menjelaskan individu dan grup yang memiliki, atau tidak memiliki, hak atas tindakan tertentu pada file atau direktori tertentu. Untuk informasi selengkapnya, lihat Cara: Menambahkan atau Menghapus Entri Daftar Kontrol Akses.

Berlaku untuk

GetAccessControl(AccessControlSections)

DirectorySecurity Mendapatkan objek yang merangkum jenis entri daftar kontrol akses (ACL) yang ditentukan untuk direktori yang dijelaskan oleh objek saat iniDirectoryInfo.

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

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

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

Public Function GetAccessControl (includeSections As AccessControlSections) As DirectorySecurity

Parameter

includeSections: AccessControlSections

Salah AccessControlSections satu nilai yang menentukan jenis informasi daftar kontrol akses (ACL) yang akan diterima.

Mengembalikan

DirectorySecurity

Objek DirectorySecurity yang merangkum aturan kontrol akses untuk direktori yang dijelaskan oleh objek saat ini DirectoryInfo .

Pengecualian

SystemException

Direktori tidak dapat ditemukan atau dimodifikasi.

UnauthorizedAccessException

Proses saat ini tidak memiliki akses untuk membuka direktori.
OR
Direktori bersifat baca-saja.
OR
Operasi ini tidak didukung pada platform saat ini.
OR
Pemanggil tidak memiliki izin yang diperlukan.

IOException

Terjadi kesalahan I/O saat membuka direktori.

Keterangan

GetAccessControl Gunakan metode untuk mengambil entri daftar kontrol akses (ACL) untuk file saat ini.

Berlaku untuk

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