This class may be used instead of the transaction class in certain scenarios.. It wraps the ObjectId.Open/Close functions, but makes it easier to correctly pair these functions by storing references to every object opened and automatically closing them.

Autodesk.AutoCAD.DatabaseServices.Transaction
    Autodesk.AutoCAD.DatabaseServices.OpenCloseTransaction

Public Class OpenCloseTransaction
Inherits Transaction

public class OpenCloseTransaction : Transaction;

Transaction