System.Data.DataTable.CreateRelationList C# (CSharp) Method

        private void CreateRelationList(List<DataTable> tableList, List<DataRelation> relationList)
        {
            foreach (DataTable table in tableList)
            {
                foreach (DataRelation r in table.ChildRelations)
                {
                    if (tableList.Contains(r.ChildTable) && tableList.Contains(r.ParentTable))
                    {
                        relationList.Add(r);
                    }
                }
            }
        }