FileStream.SetAccessControl(FileSecurity) Method
Definition
Important
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Applies access control list (ACL) entries described by a FileSecurity object to the file described by the current FileStream object.
public:
void SetAccessControl(System::Security::AccessControl::FileSecurity ^ fileSecurity);public void SetAccessControl (System.Security.AccessControl.FileSecurity fileSecurity);member this.SetAccessControl : System.Security.AccessControl.FileSecurity -> unitPublic Sub SetAccessControl (fileSecurity As FileSecurity)Parameters
- fileSecurity
- FileSecurity
An object that describes an ACL entry to apply to the current file.
Exceptions
The file is closed.
The fileSecurity parameter is null.
The file could not be found or modified.
The current process does not have access to open the file.
Remarks
While the FileStream class and SetAccessControl can be used on an existing file, consider using the FileInfo.SetAccessControl method as it's easier to use.
The SetAccessControl method applies access control list (ACL) entries to a file that represents the noninherited ACL list.
Caution
The ACL specified for the fileSecurity parameter replaces the existing ACL for the file. To add permissions for a new user, use the GetAccessControl method to obtain the existing ACL, modify it, and then use SetAccessControl to apply it back to the file.
An ACL describes individuals and groups who have, or don't have, rights to specific actions on the given file. For more information, see How to: Add or Remove Access Control List Entries.
