FileInfo.GetAccessControl Metoda

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

Návraty

Objekt FileSecurity, který zapouzdřuje pravidla řízení přístupu pro aktuální soubor.

Výjimky

Příklady

Následující příklad kódu používá metodu GetAccessControl a metodu SetAccessControl k přidání a odebrání položky seznamu řízení přístupu (ACL) ze souboru. Pro spuštění tohoto příkladu musíte zadat platný účet uživatele nebo skupiny.

#using <System.Security.dll>
using namespace System;
using namespace System::IO;
using namespace System::Security::AccessControl;
using namespace System::Security::Principal;

// Adds an ACL entry on the specified file for the specified account.
static void AddFileSecurity(String^ fileName, String^ account,
                     FileSystemRights^ rights, 
                     AccessControlType^ controlType)
{
    // Create a new FileInfo object.
    FileInfo^ fInfo = gcnew FileInfo(fileName);
    if (!fInfo->Exists)
    {
        fInfo->Create();
    }

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

    // Add the FileSystemAccessRule to the security settings.
    fSecurity->AddAccessRule(gcnew FileSystemAccessRule(account,
        *rights, *controlType));

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

// Removes an ACL entry on the specified file for the specified account.
static void RemoveFileSecurity(String^ fileName, String^ account,
                        FileSystemRights^ rights, 
                        AccessControlType^ controlType)
{
    // Create a new FileInfo object.
    FileInfo^ fInfo = gcnew FileInfo(fileName);
    if (!fInfo->Exists)
    {
        fInfo->Create();
    }

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

    // Remove the FileSystemAccessRule from the security settings.
    fSecurity->RemoveAccessRule(gcnew FileSystemAccessRule(account, 
        *rights, *controlType));

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

int 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);
    }

}
//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.
//

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.
'

Poznámky

Pomocí metody GetAccessControl načtěte položky seznamu řízení přístupu (ACL) pro aktuální soubor.

Seznam ACL popisuje jednotlivce a skupiny, které mají nebo nemají práva ke konkrétním akcím daného souboru. Další informace naleznete v tématu Postupy: Přidání nebo odebrání položek seznamu řízení přístupu.

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

Parametry

Návraty

Objekt FileSecurity, který zapouzdřuje pravidla řízení přístupu pro aktuální soubor.

Výjimky

Poznámky

Pomocí metody GetAccessControl načtěte položky seznamu řízení přístupu (ACL) pro aktuální soubor.

Seznam ACL popisuje jednotlivce a skupiny, které mají nebo nemají práva ke konkrétním akcím daného souboru. Další informace naleznete v tématu Postupy: Přidání nebo odebrání položek seznamu řízení přístupu.