This documentation is archived and is not being maintained.

FileStream.GetAccessControl Method

Gets a FileSecurity object that encapsulates the access control list (ACL) entries for the file described by the current FileStream object.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

member GetAccessControl : unit -> FileSecurity 

Return Value

Type: System.Security.AccessControl.FileSecurity
An object that encapsulates the access control settings for the file described by the current FileStream object.


The file is closed.


An I/O error occurred while opening the file.


The file could not be found.


This operation is not supported on the current platform.


The caller does not have the required permission.

While the FileStream class and GetAccessControl can be used to retrieve the access control list (ACL) entries of an existing file, consider using File.GetAccessControl method, as it is easier to use.

Use the GetAccessControl method to retrieve the ACL entries for a file.

An ACL describes individuals and/or groups who have, or do not have, rights to specific actions on the given file. For more information, see ACL Technology Overview and How to: Add or Remove Access Control List Entries.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.