BExISMigration.MetadataCreator.FindElementIndex C# (CSharp) Метод

        static int FindElementIndex(XmlElement element)
        {
            XmlNode parentNode = element.ParentNode;
            if (parentNode is XmlDocument)
            {
                return 1;
            }
            XmlElement parent = (XmlElement)parentNode;
            int index = 1;
            foreach (XmlNode candidate in parent.ChildNodes)
            {
                if (candidate is XmlElement && candidate.Name == element.Name)
                {
                    if (candidate == element)
                    {
                        return index;
                    }
                    index++;
                }
            }
            throw new ArgumentException("Couldn't find element within parent");
        }