private string TryGetValue(string propertyName)
        {
            XmlNodeList elemList = UserXml.GetElementsByTagName(propertyName);

            if (elemList != null)
            {
                if (elemList[0] != null)
                {
                    return(elemList[0].InnerText.Trim());
                }
            }

            return(String.Empty);
        }