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FileIOPermission.FileIOPermission(FileIOPermissionAccess, AccessControlActions, String) Constructor

Initializes a new instance of the FileIOPermission class with the specified access to the designated file or directory and the specified access rights to file control information.

Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)

public FileIOPermission (
	FileIOPermissionAccess access,
	AccessControlActions control,
	string path
public FileIOPermission (
	FileIOPermissionAccess access, 
	AccessControlActions control, 
	String path
public function FileIOPermission (
	access : FileIOPermissionAccess, 
	control : AccessControlActions, 
	path : String
Not applicable.



A bitwise combination of the FileIOPermissionAccess enumeration values.


A bitwise combination of the AccessControlActions enumeration values.


The absolute path of the file or directory.

Exception typeCondition


The access parameter is not a valid value of FileIOPermissionAccess.


The path parameter is not a valid string.


The path parameter does not specify the absolute path to the file or directory.

This constructor allows only one FileIOPermissionAccess value to be specified for the specified file or directories. Use the AddPathList method to define complex permissions.

The control parameter specifies whether the access control list (ACL) for the file or directory specified by path can be changed, viewed, or cannot be accessed.


An access control list (ACL) describes individuals or groups who have, or do not have, rights to specific actions on the given file and its properties. The ability to change or view an ACL is an important permission and should be granted with caution.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0