DomainController.FindOne Method (DirectoryContext, String, LocatorOptions)

Finds a single domain controller in the specified context and site, allowing for additional search options.

Namespace: System.DirectoryServices.ActiveDirectory
Assembly: System.DirectoryServices (in system.directoryservices.dll)

public static DomainController FindOne (
	DirectoryContext context,
	string siteName,
	LocatorOptions flag
public static DomainController FindOne (
	DirectoryContext context, 
	String siteName, 
	LocatorOptions flag
public static function FindOne (
	context : DirectoryContext, 
	siteName : String, 
	flag : LocatorOptions
) : DomainController
Not applicable.



A DirectoryContext object that contains the target and credentials to use for the search.


The name of the site to search for a domain controller.


A combination of one or more of the LocatorOptions members that defines the type of domain controller to find.

Return Value

A DomainController object that represents the domain controller that was found by the search.

Exception typeCondition


No domain controller was found.


context, siteName, or flag is not valid.


context or siteName is a null reference (Nothing in Visual Basic).

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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