System.Transactions.VolatileEnlistmentPreparing.EnterState C# (CSharp) Method

        internal override void EnterState(InternalEnlistment enlistment)
        {
            // Set the enlistment state
            enlistment.State = this;

            Monitor.Exit(enlistment.Transaction);
            try // Don't hold this lock while calling into the application code.
            {
                TransactionsEtwProvider etwLog = TransactionsEtwProvider.Log;
                if (etwLog.IsEnabled())
                {
                    etwLog.EnlistmentStatus(enlistment, NotificationCall.Prepare);
                }

                enlistment.EnlistmentNotification.Prepare(enlistment.PreparingEnlistment);
            }
            finally
            {
                Monitor.Enter(enlistment.Transaction);
            }
        }

 internal override void ChangeStatePreparing(InternalEnlistment enlistment)
 {
     VolatileEnlistmentPreparing.EnterState(enlistment);
 }