public static void SaveXml(string strFileName, NgProject pr)
        {
            XmlSerializer xsSubmit = new XmlSerializer(typeof(NgProject));
            var           xml      = "";

            using (var sww = new StringWriter())
            {
                using (XmlWriter writer = XmlWriter.Create(sww))
                {
                    xsSubmit.Serialize(writer, pr);
                    xml = sww.ToString(); // Your XML
                }
            }

            CommonFunctions.WriteToFile(strFileName, xml);
        }