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PrincipalContext Constructor (ContextType, String)

Initializes a new instance of the PrincipalContext class with the specified context type and name.

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

public PrincipalContext(
	ContextType contextType,
	string name


Type: System.DirectoryServices.AccountManagement.ContextType

A ContextType enumeration value specifying the type of store for the principal context.

Type: System.String

The name of the domain or server for Domain context types, the machine name for Machine context types, or the name of the server and port hosting the ApplicationDirectory instance.

If the name is null for a Domain context type this context is a domain controller for the domain of the user principal under which the thread is running. If the name is null for a Machine context type, this is the local machine name. This parameter cannot be null for ApplicationDirectory context types.


A name must be specified when ApplicationDirectory is specified in the contextType parameter.


The contextType parameter does not contain a valid ContextType enumeration value.

.NET Framework

Supported in: 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), 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.

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