using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml.Serialization;

using System.Xml;

using System.IO;

using System.Diagnostics;

using System.Collections.ObjectModel;

using System.Threading;

using System.ComponentModel;

using System.Xml.Linq;

using System.Reflection;

using System.Data;

using System.Xml.Schema;

using System.Text.RegularExpressions;

using System.Net;

using System.Xml.XPath;

using System.Globalization;

using System.ComponentModel.DataAnnotations;

using System.Collections;

using System.Runtime.InteropServices;

using System.Runtime.Serialization;

​

// https://stackoverflow.com/questions/46415814/remove-namespace-attribute-from-xml-node-in-serialized-value

​

    [XmlRoot("OutlTxt", Namespace = OutlineText.Namespace)]

    public class OutlineText

    {

        public const string Namespace = "http://www.mynamespace/09262017";

​

        private string _value;

​

        [XmlAnyElement("TextOutlTxt", Namespace = OutlineText.Namespace)]

        public XElement Value

        {

            get

            {

                var escapedValue = EscapeTextValue(_value);

​

                var nestedXml = string.Format("<p xmlns=\"{0}\" style=\"text-align:left;margin-top:0pt;margin-bottom:0pt;\"><span>{1}</span></p>", Namespace, escapedValue);

                var outerXml = string.Format("<TextOutlTxt xmlns=\"{0}\">{1}</TextOutlTxt>", Namespace, nestedXml);

​

                var element = XElement.Parse(outerXml);

​

                //Remove redundant xmlns attributes

                element.DescendantsAndSelf().SelectMany(e => e.Attributes()).Where(a => a.IsNamespaceDeclaration && a.Value == Namespace).Remove();

​

                return element;

            }

            set

            {

                _value = value == null ? null : value.Value;

            }

        }

​

        static string EscapeTextValue(string text)

        {

            return Regex.Replace(text, @"[\a\b\f\n\r\t\v\\""'&<>]", m => string.Join(string.Empty, m.Value.Select(c => string.Format("&#x{0:X};", Convert.ToInt32(c))).ToArray()));

        }

​

        private OutlineText()

        { }

​

        public OutlineText(string text)

        {

            _value = text;

        }

    }

​

​

    class TestClass

    {

        public static void Test()

        {

            Test(@"");

            Test(@"SUBSTA SF6 CIRCUIT BKR CONC FDN ""C""");

​

            Console.WriteLine("\nDone.");

        }

        static void Test(string innerValue)

        {

            Console.WriteLine("\nInput Value: ");

            Console.WriteLine(innerValue);

​

            var outlineText = new OutlineText(innerValue);

​

            var xml = outlineText.GetXml();

​

            Console.WriteLine(string.Format("\nOutput {0}:", outlineText));

            Console.WriteLine(xml);

        }

    }

​

    public class AssertionFailedException : System.Exception

    {

        public AssertionFailedException() : base() { }

​

        public AssertionFailedException(string s) : base(s) { }

    }

​

    public static class Assert

    {

        public static void IsTrue(bool value)

        {

            IsTrue(value, "failed");

        }

​

        public static void IsTrue(bool value, string message)

        {

            if (value == false)

                throw new AssertionFailedException(message ?? "failed");

        }

    }

​

    public static class XmlSerializationHelper

    {

        public static T LoadFromXml<T>(this string xmlString, XmlSerializer serial = null)

        {

            serial = serial ?? new XmlSerializer(typeof(T));

            T returnValue = default(T);

            using (StringReader reader = new StringReader(xmlString))

            {

                object result = serial.Deserialize(reader);

                if (result is T)

                {

                    returnValue = (T)result;

                }

            }

            return returnValue;

        }

​

        public static string GetXml<T>(this T obj, bool omitStandardNamespaces)

        {

            return obj.GetXml(null, omitStandardNamespaces);

        }

        public static string GetXml<T>(this T obj, XmlSerializer serializer = null, bool omitStandardNamespaces = false)

        {

            XmlSerializerNamespaces ns = null;

            if (omitStandardNamespaces)

            {

                ns = new XmlSerializerNamespaces();

                ns.Add("", ""); // Disable the xmlns:xsi and xmlns:xsd lines.

            }           

            using (var textWriter = new StringWriter())

            {

                var settings = new XmlWriterSettings() { Indent = true }; // For cosmetic purposes.

                using (var xmlWriter = XmlWriter.Create(textWriter, settings))

                    (serializer ?? new XmlSerializer(obj.GetType())).Serialize(xmlWriter, obj, ns);

                return textWriter.ToString();

            }

        }

    }

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine();

​

            TestClass.Test();

        }

    }

​