System.Configuration.ConfigurationException.GetUnsafeXmlNodeFilename C# (CSharp) Method

        private static string GetUnsafeXmlNodeFilename(XmlNode node) {
            IConfigErrorInfo configNode = node as IConfigErrorInfo;

            if (configNode != null) {
                return configNode.Filename;
            }

            return string.Empty;
        }
    }