mscorlib 2.0.0.0 4.0.0.0 System.Security.AccessControl.AccessRule

The class is one of a set of classes that the .NET Framework provides for managing Windows access control security on named system events. For an overview of these classes, and their relationship to the underlying Windows access control structures, see .

Windows access control security is meaningful only for named system events. If an object represents a local event, access control is irrelevant.

To get a list of the rules currently applied to a named event, use the method to get an object, and then use its method to obtain a collection of objects.

objects do not map one-to-one with access control entries in the underlying discretionary access control list (DACL). When you get the set of all access rules for an event, the set contains the minimum number of rules currently required to express all the access control entries.

The underlying access control entries change as you apply and remove rules. The information in rules is merged if possible, to maintain the smallest number of access control entries. Thus, when you get the current list of rules, it might not look exactly like the list of all the rules you have added.

Use objects to specify the access rights to allow or deny to a user or group. An object always represents either allowed access or denied access, never both.

To apply a rule to a named system event, use the method to get the object. Modify the object by using its methods to add the rule, and then use the method to reattach the security object.

Changes you make to an object do not affect the access levels of the named event until you call the method to assign the altered security object to the named event.

objects are immutable. Security for an event is modified using the methods of the class to add or remove rules; as you do this, the underlying access control entries are modified.

Security on synchronization objects is not supported for Windows 98 or Windows Millennium Edition.

Represents a set of access rights allowed or denied for a user or group. This class cannot be inherited.

- Constructor
  2.0.0.0
  4.0.0.0

  To wait on an (by calling the , or method), a user must have access. To signal an event by calling the method, or to reset it to the unsignaled state by calling the method, a user must have access. To signal an object and then wait on it by calling the method, a user must have and access.

  Initializes a new instance of the class, specifying the user or group the rule applies to, the access rights, and whether the specified access rights are allowed or denied.

  The user or group the rule applies to. Must be of type or a type such as that can be converted to type .
  A bitwise combination of values specifying the rights allowed or denied.
  One of the values specifying whether the rights are allowed or denied.
- Constructor
  2.0.0.0
  4.0.0.0

  To wait on an (by calling the , or method), a user must have access. To signal an event by calling the method, or to reset it to the unsignaled state by calling the method, a user must have access. To signal an object and then wait on it by calling the method, a user must have and access.

  This constructor is equivalent to creating an object, by passing to the constructor, and passing the newly created object to the constructor.

  Initializes a new instance of the class, specifying the name of the user or group the rule applies to, the access rights, and whether the specified access rights are allowed or denied.

  The name of the user or group the rule applies to.
  A bitwise combination of values specifying the rights allowed or denied.
  One of the values specifying whether the rights are allowed or denied.
- Property
  2.0.0.0
  4.0.0.0
  System.Security.AccessControl.EventWaitHandleRights To be added.

  objects are immutable. You can create a new access rule representing a different user, different rights, or a different , but you cannot modify an existing access rule.

  Gets the rights allowed or denied by the access rule.