XmlHelper

  private static XmlWriterSettings GetSettings()
        {
            XmlWriterSettings settings = new XmlWriterSettings();
            settings.Indent = true;
            settings.NewLineChars = "\n";
            settings.Encoding = Encoding.UTF8;
            return settings;
        }

        public static T ConvertToObject<T>(string filePath)
        {
            return ConvertToObject<T>(null, filePath);
        }

        public static T ConvertToObject<T>(Type instanceType, string filePath)
        {
            XmlSerializer ser = (instanceType == null) ? new XmlSerializer(typeof(T)) : new XmlSerializer(instanceType);
            XmlReader reader = XmlTextReader.Create(filePath);

            T instance;
            instance = (T)ser.Deserialize(reader);
            reader.Close();

            return instance;
        }

        public static void SaveToFile<T>(T instance, string filePath)
        {
            XmlSerializer ser = new XmlSerializer(typeof(T));
            XmlWriter writer = XmlTextWriter.Create(filePath, GetSettings());
            ser.Serialize(writer, instance);
            writer.Close();
            writer.Flush();
        }
        public static string SerializeToXml(object value)
        {
            if (value == null)
                return "";
            string result = string.Empty;
            if (value is string)
            {
                return value.ToString();
            }

            try
            {
                StringBuilder sb = new StringBuilder(1000);
                XmlSerializerNamespaces xmlns = new XmlSerializerNamespaces();
                xmlns.Add(string.Empty, string.Empty);

                XmlSerializer ser = new XmlSerializer(value.GetType());
                using (TextWriter writer = new StringWriter(sb))
                {
                    ser.Serialize(writer, value,xmlns);
                    result = writer.ToString();
                }
            }
            catch
            {
            }

            return result;
        }