XML to Entity

 public static T GetEntityByXml<T>(string xml, string rootNode=null) where T : new()
        {
            if (string.IsNullOrEmpty(xml)) return new T();
            if (!string.IsNullOrEmpty(rootNode))
            {
                xml = string.Format("<{0}>{1}</{0}>", rootNode, xml);
            }
            using (TextReader reader = new StringReader(xml))
            {
                var serializer = new XmlSerializer(typeof(T));
                return (T)serializer.Deserialize(reader);
            }
        }