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Forest.CreateLocalSideOfTrustRelationship Method

Creates the local side of a trust relationship with the specified forest.

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

public void CreateLocalSideOfTrustRelationship(
	string targetForestName,
	TrustDirection direction,
	string trustPassword


Type: System.String

The DNS name of the forest that the trust is created with.

Type: System.DirectoryServices.ActiveDirectory.TrustDirection

One of the TrustDirection members that determines the direction of the trust, relative to this forest.

Type: System.String

The password for the trust. See the Remarks section for more information.


The trust relationship already exists.


A call to the underlying directory service resulted in an error.


The target server is either busy or unavailable.


targetForest name or trustPassword string is empty.


targetForest or trustPassword is null.


direction is not a valid TrustDirection value.


The object has been disposed.


The specified account does not have permission to perform this operation.

This method creates one side of a trust relationship. The trust is not established until both sides of the trust have been created.

The trustPassword parameter associates a password with the created trust. When the other side of the trust is created, the same password is provided and the two local trusts are then bound to each other.

To programmatically create both sides of a trust relationship in a single method call, use the Forest.CreateTrustRelationship method.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0