public static int getDestinationPort(String sourceNodeName, int sourceNodePort)
        {
            int destinationNodePort = 0;

            for (int i = 0; i < connectionsBetweenNodes.Count; i++)
            {
                LinksRow checkedRow = connectionsBetweenNodes.ElementAt(i);
                String   nodeName   = checkedRow.getSourceNodeName();
                int      port       = checkedRow.getSourceNodePort();
                if (sourceNodeName.Equals(nodeName) && port == sourceNodePort)
                {
                    destinationNodePort = checkedRow.getDestinationNodePort();
                }
            }
            return(destinationNodePort);
        }