using System.Configuration.Internal; using System.Xml; namespace System.Configuration { internal sealed class ConfigXmlElement : XmlElement, IConfigErrorInfo { private string _filename; private int _line; int IConfigErrorInfo.LineNumber { get { return _line; } } string IConfigErrorInfo.Filename { get { return _filename; } } public ConfigXmlElement(string filename, int line, string prefix, string localName, string namespaceUri, XmlDocument doc) : base(prefix, localName, namespaceUri, doc) { _line = line; _filename = filename; } public override XmlNode CloneNode(bool deep) { XmlNode xmlNode = base.CloneNode(deep); ConfigXmlElement configXmlElement = xmlNode as ConfigXmlElement; if (configXmlElement != null) { configXmlElement._line = _line; configXmlElement._filename = _filename; } return xmlNode; } } }