System.Transactions.Transaction.Transaction C# (CSharp) Method

        internal Transaction(IsolationLevel isoLevel, InternalTransaction internalTransaction)
        {
            TransactionManager.ValidateIsolationLevel(isoLevel);

            _isoLevel = isoLevel;

            // Never create a transaction with an IsolationLevel of Unspecified.
            if (IsolationLevel.Unspecified == _isoLevel)
            {
                _isoLevel = TransactionManager.DefaultIsolationLevel;
            }

            if (internalTransaction != null)
            {
                _internalTransaction = internalTransaction;
                _cloneId = Interlocked.Increment(ref _internalTransaction._cloneCount);
            }
            else
            {
                // Null is passed from the constructor of a CommittableTransaction.  That
                // constructor will fill in the traceIdentifier because it has allocated the
                // internal transaction.
            }
        }