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FileSystemSecurity::SetAccessRule Method (FileSystemAccessRule^)

.NET Framework (current version)
 

Sets the specified access control list (ACL) permission for the current file or directory.

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

C#
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public:
void SetAccessRule(
	FileSystemAccessRule^ rule
)

Parameters

rule
Type: System.Security.AccessControl::FileSystemAccessRule^

A FileSystemAccessRule object that represents an access control list (ACL) permission to set for a file or directory.

Exception Condition
ArgumentNullException

The rule parameter is null.

The SetAccessRule method adds the specified access control list (ACL) rule or overwrites any identical ACL rules that match the FileSystemRights value of the rule parameter. For example, if the rule parameter specifies a Read value and the SetAccessRule method finds an identical ACL rule that specifies the Read value, the identical rule will be overwritten. If the SetAccessRule method finds an identical ACL rule that specifies the Write value, the identical rule will not be overwritten.

To persist new or changed ACL information to a file, use the SetAccessControl or SetAccessControl method. To persist new or changed ACL information to a directory, use the SetAccessControl or SetAccessControl method.

To retrieve ACL information from a file, use the GetAccessControl or GetAccessControl method. To retrieve ACL information from a directory, use the GetAccessControl or GetAccessControl method.

.NET Framework
Available since 2.0
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