/// <summary>
        /// Return XElement object
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="myObject"></param>
        /// <returns></returns>
        public XmlElement GetXmlElement<T>(T myObject, string namespacePrefix = "")
        {
            XmlSerializer ser = new XmlSerializer(typeof(T), "http://valida.aem.gob.cl");
            XmlDocument xd = null;

            using (MemoryStream memStm = new MemoryStream())
            {
                XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
                if (!String.IsNullOrEmpty(namespacePrefix))
                {
                    ns.Add(namespacePrefix, "http://valida.aem.gob.cl");
                    ser.Serialize(memStm, myObject, ns);
                }
                else
                    ser.Serialize(memStm, myObject);

                memStm.Position = 0;

                XmlReaderSettings settings = new XmlReaderSettings();
                settings.IgnoreWhitespace = true;

                using (var xtr = XmlReader.Create(memStm, settings))
                {
                    xd = new XmlDocument();
                    xd.Load(xtr);
                }
            }
            return xd.DocumentElement;
        }