System.Transactions.TransactionManager.CheckTransactionManager C# (CSharp) Method

        private static DistributedTransactionManager CheckTransactionManager(string nodeName)
        {
            DistributedTransactionManager tm = DistributedTransactionManager;
            if (!((tm.NodeName == null && (nodeName == null || nodeName.Length == 0)) ||
                  (tm.NodeName != null && tm.NodeName.Equals(nodeName))))
            {
                throw new ArgumentException(SR.InvalidRecoveryInformation, "recoveryInformation");
            }
            return tm;
        }