XML Document to string

XML.cs

        public static string XmlToString(XmlDocument xmlDoc)
        {
            using (var stringWriter = new StringWriter())
            {
                using (var xmlTextWriter = XmlWriter.Create(stringWriter))
                {
                    xmlDoc.WriteTo(xmlTextWriter);
                    xmlTextWriter.Flush();
                    return stringWriter.GetStringBuilder().ToString();
                }
            }
        }