FileSystemAccessRule Constructors

public:
 FileSystemAccessRule(System::Security::Principal::IdentityReference ^ identity, System::Security::AccessControl::FileSystemRights fileSystemRights, System::Security::AccessControl::AccessControlType type);

public FileSystemAccessRule (System.Security.Principal.IdentityReference identity, System.Security.AccessControl.FileSystemRights fileSystemRights, System.Security.AccessControl.AccessControlType type);

new System.Security.AccessControl.FileSystemAccessRule : System.Security.Principal.IdentityReference * System.Security.AccessControl.FileSystemRights * System.Security.AccessControl.AccessControlType -> System.Security.AccessControl.FileSystemAccessRule

Public Sub New (identity As IdentityReference, fileSystemRights As FileSystemRights, type As AccessControlType)

Parameters

Exceptions

Remarks

Use this constructor to create an access control rule that you can persist using the FileSecurity or DirectorySecurity class. Access control rules define user account rights that determine which actions are allowed or disallowed on computers running Microsoft Windows.

public:
 FileSystemAccessRule(System::String ^ identity, System::Security::AccessControl::FileSystemRights fileSystemRights, System::Security::AccessControl::AccessControlType type);

public FileSystemAccessRule (string identity, System.Security.AccessControl.FileSystemRights fileSystemRights, System.Security.AccessControl.AccessControlType type);

new System.Security.AccessControl.FileSystemAccessRule : string * System.Security.AccessControl.FileSystemRights * System.Security.AccessControl.AccessControlType -> System.Security.AccessControl.FileSystemAccessRule

Public Sub New (identity As String, fileSystemRights As FileSystemRights, type As AccessControlType)

Parameters

Exceptions

Examples

The following code example uses the FileSecurity class to add and then remove an access control entry (ACE) from a file. You must supply a valid user or group account to run this example.

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

namespace FileSystemExample
{
    class FileExample
    {
        public static void Main()
        {
            try
            {
                string fileName = "test.xml";

                Console.WriteLine($"Adding access control entry for {fileName}");

                // Add the access control entry to the file.
                AddFileSecurity(fileName, @"DomainName\AccountName",
                    FileSystemRights.ReadData, AccessControlType.Allow);

                Console.WriteLine($"Removing access control entry from {fileName}");

                // Remove the access control entry from the file.
                RemoveFileSecurity(fileName, @"DomainName\AccountName",
                    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)
        {
            FileInfo fileInfo = new(fileName);
            FileSecurity fSecurity = fileInfo.GetAccessControl();

            // Add the FileSystemAccessRule to the security settings.
            fSecurity.AddAccessRule(new FileSystemAccessRule(account,
                rights, controlType));

            // Set the new access settings.
            fileInfo.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)
        {
            FileInfo fileInfo = new(fileName);
            FileSecurity fSecurity = fileInfo.GetAccessControl();

            // Remove the FileSystemAccessRule from the security settings.
            fSecurity.RemoveAccessRule(new FileSystemAccessRule(account,
                rights, controlType));

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

Imports System.IO
Imports System.Security.AccessControl

Module FileExample

    Sub Main()
        Try
            Dim fileName As String = "test.xml"

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

            ' Add the access control entry to the file.
            AddFileSecurity(fileName, "DomainName\AccountName",
                FileSystemRights.ReadData, AccessControlType.Allow)

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

            ' Remove the access control entry from the file.
            RemoveFileSecurity(fileName, "DomainName\AccountName",
                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)

        Dim fileInfo As New FileInfo(fileName)
        Dim fSecurity As FileSecurity = fileInfo.GetAccessControl()

        ' Add the FileSystemAccessRule to the security settings. 
        Dim accessRule As New FileSystemAccessRule(account, rights, controlType)

        fSecurity.AddAccessRule(accessRule)

        ' Set the new access settings.
        fileInfo.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)

        Dim fileInfo As New FileInfo(fileName)
        Dim fSecurity As FileSecurity = fileInfo.GetAccessControl()

        ' Remove the FileSystemAccessRule from the security settings. 
        fSecurity.RemoveAccessRule(New FileSystemAccessRule(account,
            rights, controlType))

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

    End Sub
End Module

Remarks

Use this constructor to create an access control rule that you can persist using the FileSecurity or DirectorySecurity class. Access control rules define user account rights that determine which actions are allowed or disallowed on computers running Microsoft Windows.

The identity parameter must identify a valid account on the current computer or domain. The string takes the following form, where DOMAIN is the name of a valid domain or computer name and account is the name of a valid user account on a domain or computer: DOMAIN\account.

public:
 FileSystemAccessRule(System::Security::Principal::IdentityReference ^ identity, System::Security::AccessControl::FileSystemRights fileSystemRights, System::Security::AccessControl::InheritanceFlags inheritanceFlags, System::Security::AccessControl::PropagationFlags propagationFlags, System::Security::AccessControl::AccessControlType type);

public FileSystemAccessRule (System.Security.Principal.IdentityReference identity, System.Security.AccessControl.FileSystemRights fileSystemRights, System.Security.AccessControl.InheritanceFlags inheritanceFlags, System.Security.AccessControl.PropagationFlags propagationFlags, System.Security.AccessControl.AccessControlType type);

new System.Security.AccessControl.FileSystemAccessRule : System.Security.Principal.IdentityReference * System.Security.AccessControl.FileSystemRights * System.Security.AccessControl.InheritanceFlags * System.Security.AccessControl.PropagationFlags * System.Security.AccessControl.AccessControlType -> System.Security.AccessControl.FileSystemAccessRule

Public Sub New (identity As IdentityReference, fileSystemRights As FileSystemRights, inheritanceFlags As InheritanceFlags, propagationFlags As PropagationFlags, type As AccessControlType)

Parameters

Exceptions

Remarks

Use this constructor to create an access control rule that you can persist using the FileSecurity or DirectorySecurity class. Access control rules define user account rights that determine which actions are allowed or disallowed on computers running Microsoft Windows.

public:
 FileSystemAccessRule(System::String ^ identity, System::Security::AccessControl::FileSystemRights fileSystemRights, System::Security::AccessControl::InheritanceFlags inheritanceFlags, System::Security::AccessControl::PropagationFlags propagationFlags, System::Security::AccessControl::AccessControlType type);

public FileSystemAccessRule (string identity, System.Security.AccessControl.FileSystemRights fileSystemRights, System.Security.AccessControl.InheritanceFlags inheritanceFlags, System.Security.AccessControl.PropagationFlags propagationFlags, System.Security.AccessControl.AccessControlType type);

new System.Security.AccessControl.FileSystemAccessRule : string * System.Security.AccessControl.FileSystemRights * System.Security.AccessControl.InheritanceFlags * System.Security.AccessControl.PropagationFlags * System.Security.AccessControl.AccessControlType -> System.Security.AccessControl.FileSystemAccessRule

Public Sub New (identity As String, fileSystemRights As FileSystemRights, inheritanceFlags As InheritanceFlags, propagationFlags As PropagationFlags, type As AccessControlType)

Parameters

Exceptions

Remarks

Use this constructor to create an access control rule that you can persist using the FileSecurity or DirectorySecurity class. Access control rules define user account rights that determine which actions are allowed or disallowed on computers running Microsoft Windows.

The identity parameter must identify a valid account on the current computer or domain. The string takes the following form, where DOMAIN is the name of a valid domain or computer name and account is the name of a valid user account on a domain or computer: DOMAIN\account.