Windows.Data.Xml.Dom.XmlElement.SelectSingleNodeNS C# (CSharp) Метод

		public extern IXmlNode SelectSingleNodeNS([In] string xpath, [Variant] [In] object namespaces);
		public extern XmlNodeList SelectNodesNS([In] string xpath, [Variant] [In] object namespaces);

        private DateTime GetPublishDate(DateTime defaultValue)
        {
            var target = _entryNode.SelectSingleNodeNS("atom:published", _nsMgr.ToNSMethodFormat());

            if (target == null)
            {
                return(defaultValue);
            }
            string val = target.InnerText;

            if (val == null)
            {
                return(defaultValue);
            }
            val = val.Trim();
            if (val.Length == 0)
            {
                return(defaultValue);
            }

            return(ParseRfc3339(val));
        }