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.

Exception Condition

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


The contextType parameter does not contain a valid F:System.DirectoryServices.AccountManagement.ContextType enumeration value.

.NET Framework
Available since 3.5
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