System.Data.XSDSchema.AddTablesToList C# (CSharp) Method

        private void AddTablesToList(List<DataTable> tableList, DataTable dt)
        { // kind of depth _first travarsal
            if (!tableList.Contains(dt))
            {
                tableList.Add(dt);
                foreach (DataTable childTable in _tableDictionary[dt])
                {
                    AddTablesToList(tableList, childTable);
                }
            }
        }