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DirectorySearcher.DirectorySynchronization Property

Gets or sets an object that represents the directory synchronization control to use with the search.

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

public DirectorySynchronization DirectorySynchronization { get; set; }

Property Value

Type: System.DirectoryServices.DirectorySynchronization
The DirectorySynchronization object for the search. null if the directory synchronization control should not be used.

The directory synchronization control, commonly referred to as the DirSync control, is an LDAP control that is used to search for objects that have changed since a previous state.

For more information, see the topic "Polling for Changes Using the DirSync Control" in the MSDN Library at

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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