using System;

using System.Collections.Generic;

using System.Text;

using System.Linq;

using System.Xml.Serialization;

using System.Xml;

using System.Xml.Linq;

using System.IO;

using System.Data;

​

using NUnit.Framework; //NUnit.Framework.AssertionException

//https://stackoverflow.com/questions/72204954/how-to-generate-tags-inside-another-tag-in-xml-c

​

    public class root

    {

        public property property { get; set; }

    }

​

    public class property

    {

        [XmlAnyElement("languages")]

        public XElement languages { get; set; }

    }

​

​

    public class TestClass

    {

        public static void Test()

        {

            // Your dynamic list of languages & values

            var languages = new List<(string IsoLanguageCode, string Description)>

            {

                ("en", "This is English Languages description"),

                ("fr", ""),

            };

            var root = new root()

            {

                property = new()

                {

                    languages = new XElement("languages", languages.Select(l => new XElement(l.IsoLanguageCode, l.Description))),

                },

            };

            var xml = root.GetXml(omitStandardNamespaces : true);

            Console.WriteLine(xml);

        }

    }

​

    public static class XmlSerializationHelper

    {

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

        {

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

            using (var reader = new StringReader(xmlString))

            {

                return (T)serial.Deserialize(reader);

            }

        }

​

        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: {0} ({1}, {2})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , Environment.Version, Environment.OSVersion);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​