Forest.DeleteTrustRelationship Method (Forest)
Deletes both sides of a trust relationship.
Assembly: System.DirectoryServices (in System.DirectoryServices.dll)
There is no trust relationship with the specified Forest.
A call to the underlying directory service resulted in an error.
The target server is either busy or unavailable.
targetForest is null.
The object has been disposed.
The specified account does not have permission to perform this operation.
To delete only one side of a trust relationship, use the Forest.DeleteLocalSideOfTrustRelationship method.
Available since 2.0