This topic has not yet been rated - Rate this topic

DirectoryEntry Class

[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]

The DirectoryEntry class encapsulates a node or object in the Active Directory Domain Services hierarchy.

System.Object
  System.MarshalByRefObject
    System.ComponentModel.Component
      System.DirectoryServices.DirectoryEntry

Namespace:  System.DirectoryServices
Assembly:  System.DirectoryServices (in System.DirectoryServices.dll)

[DSDescriptionAttribute("DirectoryEntryDesc")]
[SecurityPermissionAttribute(SecurityAction.Assert, Flags = SecurityPermissionFlag.UnmanagedCode)]
[EnvironmentPermissionAttribute(SecurityAction.Assert, Unrestricted = true)]
[DirectoryServicesPermissionAttribute(SecurityAction.LinkDemand, Unrestricted = true)]
public class DirectoryEntry : Component

The DirectoryEntry type exposes the following members.

  Name Description
Public method DirectoryEntry() Initializes a new instance of the DirectoryEntry class.
Public method DirectoryEntry(Object) Initializes a new instance of the DirectoryEntry class that binds to the specified native Active Directory Domain Services object.
Public method DirectoryEntry(String) Initializes a new instance of the DirectoryEntry class that binds this instance to the node in Active Directory Domain Services located at the specified path.
Public method DirectoryEntry(String, String, String) Initializes a new instance of the DirectoryEntry class.
Public method DirectoryEntry(String, String, String, AuthenticationTypes) Initializes a new instance of the DirectoryEntry class.
Top
  Name Description
Public property AuthenticationType Gets or sets the type of authentication to use.
Protected property CanRaiseEvents Gets a value indicating whether the component can raise an event. (Inherited from Component.)
Public property Children Gets the child entries of this node in the Active Directory Domain Services hierarchy.
Public property Container Gets the IContainer that contains the Component. (Inherited from Component.)
Protected property DesignMode Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.)
Protected property Events Gets the list of event handlers that are attached to this Component. (Inherited from Component.)
Public property Guid Gets the GUID of the DirectoryEntry.
Public property Name Gets the name of the object as named with the underlying directory service.
Public property NativeGuid Gets the GUID of the DirectoryEntry, as returned from the provider.
Public property NativeObject Gets the native Active Directory Service Interfaces (ADSI) object.
Public property ObjectSecurity Gets or sets the security descriptor for this entry.
Public property Options Gets the provider-specific options for this entry.
Public property Parent Gets this entry's parent in the Active Directory Domain Services hierarchy.
Public property Password Sets the password to use when authenticating the client.
Public property Path Gets or sets the path for this DirectoryEntry.
Public property Properties Gets the Active Directory Domain Services properties for this DirectoryEntry object.
Public property SchemaClassName Gets the name of the schema class for this DirectoryEntry object.
Public property SchemaEntry Gets the schema object for this entry.
Public property Site Gets or sets the ISite of the Component. (Inherited from Component.)
Public property UsePropertyCache Gets or sets a value indicating whether the cache should be committed after each operation.
Public property Username Gets or sets the user name to use when authenticating the client.
Top
  Name Description
Public method Close Closes the DirectoryEntry object and releases any system resources that are associated with this component.
Public method CommitChanges Saves changes that are made to a directory entry to the underlying directory store.
Public method CopyTo(DirectoryEntry) Creates a copy of this entry as a child of the specified parent.
Public method CopyTo(DirectoryEntry, String) Creates a copy of this DirectoryEntry object, as a child of the specified parent DirectoryEntry object, with the specified new name.
Public method CreateObjRef Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.)
Public method DeleteTree Deletes this entry and its entire subtree from the Active Directory Domain Services hierarchy.
Public method Dispose() Releases all resources used by the Component. (Inherited from Component.)
Protected method Dispose(Boolean) Disposes of the resources (other than memory) that are used by the DirectoryEntry. (Overrides Component.Dispose(Boolean).)
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Public method Static member Exists Determines if the specified path represents an actual entry in the directory service.
Protected method Finalize Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetLifetimeService Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Protected method GetService Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method InitializeLifetimeService Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.)
Public method Invoke Calls a method on the native Active Directory Domain Services object.
Public method InvokeGet Gets a property from the native Active Directory Domain Services object.
Public method InvokeSet Sets a property on the native Active Directory Domain Services object.
Protected method MemberwiseClone() Creates a shallow copy of the current Object. (Inherited from Object.)
Protected method MemberwiseClone(Boolean) Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.)
Public method MoveTo(DirectoryEntry) Moves this DirectoryEntry object to the specified parent.
Public method MoveTo(DirectoryEntry, String) Moves this DirectoryEntry object to the specified parent and changes its name to the specified value.
Public method RefreshCache() Loads the property values for this DirectoryEntry object into the property cache.
Public method RefreshCache(String[]) Loads the values of the specified properties into the property cache.
Public method Rename Changes the name of this DirectoryEntry object.
Public method ToString Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component.)
Top
  Name Description
Public event Disposed Occurs when the component is disposed by a call to the Dispose method. (Inherited from Component.)
Top

Use this class for binding to objects, or reading and updating attributes. DirectoryEntry, along with helper classes, provides support for life-cycle management and navigation methods. These include creating, deleting, renaming, moving a child node, and enumerating children. After you modify a node, you must commit your changes in order for them to be saved to the tree. For more information, see the CommitChanges property.

DirectoryEntry can be used to access regular entries and some, but not all, information from schema entries.

The Active Directory Domain Services hierarchy contains up to several thousand nodes. Each node represents an object, such as a network printer or a user in a domain. Corporate networks constantly change as new employees are hired and objects such as network printers and computers are added. Active Directory Service Interfaces (ADSI) technology provides ways to programmatically add these objects to the directory tree.

To create a directory entry in the hierarchy, use the Children property. The Children property is a collection that provides an Add method, through which you add a node to the collection directly below the parent node that you are currently bound to. When adding a node to the collection, you must specify a name for the new node and the name of a schema template that you want to associate with the node. For example, you might want to use a schema titled "Computer" to add new computers to the hierarchy.

This class also contains attribute caching, which can be useful for optimizing network traffic. To use attribute caching, see the UsePropertyCache property.

The classes associated with the DirectoryEntry component can be used with any of the Active Directory Domain Services service providers. Some of the current providers are Internet Information Services (IIS), Lightweight Directory Access Protocol (LDAP), Novell NetWare Directory Service (NDS), and WinNT.

Note Note

It is assumed that you have a general understanding of Active Directory Domain Services before using this class. For more information, see the System.DirectoryServices namespace overview.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8 Release Preview, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 SP2, Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Did you find this helpful?
(1500 characters remaining)