How Do I...Enilst on a transaction?

If you want to build a resource manager or simply vote on the outcome of a transaction you'll need to enlist on that transaction. Enlisting allows you to receive transaction notifications and take appropriate action.

There are two steps to enlist on a transaction:

• First, you will need to enlist on a transaction. If your enlistment will not log state information and cannot recover from a failure, call the EnlistVolatile method on the Transaction object. If your enlistment will log state information and can recover from a failure, call the EnlistDurable method on the Transaction object.
• Second, your enlistment will need to implement the IEnlistmentNotification interface. The methods implemented will be called for each of the possible transaction notifications: Prepare, Commit, Rollback, and InDoubt.

Here is a full example: