Make this McDBTransaction the Current context for operations and objects.

A McDBTransaction object.  

object.Activate

The Activate Method syntax has these parts:

McDBLib processes actions within any number of tentative
    (McDBTransaction) contexts, the collection of which is encapsulated
    by the McDBTransactions collection.  However, for any given action,
    only one McDBTransaction may be active.  This method activates this
    McDBTransaction, making the interfaces to the database objects
    within it valid.  It does NOT increase the McDBTransaction's Level.
Note: Each McDBTransaction is a separate Scope and Namespace.  That is,
    interfaces and McDBLib objects in one McDBTransaction are not
    necessarily valid in others.  Therefore, special care must be
    taken when writing code using simultaneous multiple transaction
    processing.