using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml.Serialization;

using System.Xml;

using System.IO;

using System.Xml.Linq;

​

    // https://stackoverflow.com/questions/48778766/xdocument-parsing-error

    public static class AdifDictionaryExtensions

    {

        public static Dictionary<decimal, string> ExtractAdifDictionary(TextReader reader)

        {

            Dictionary<decimal, string> dict = new Dictionary<decimal, string>();

​

            using (var xmlReader = XmlReader.Create(reader))

            {

                var xd = XDocument.Load(xmlReader);

                var ns1 = (XNamespace)"http://www.clublog.org/cty/v1.0";

                var ns2 = (XNamespace)"https://clublog.org/cty/v1.0";

​

                dict =

                    xd

                    .Root

                    .Elements("entities", ns1, ns2).Single()

                    .Elements("entity", ns1, ns2)

                    .ToDictionary(

                        x => (decimal)x.Elements("adif", ns1, ns2).Single(),

                        x => x.Elements("name", ns1, ns2).Single().Value);

​

                return dict;

            }

        }

    }

​

    public static class XContainerExtensions

    {

        public static IEnumerable<XElement> Elements(this XContainer container, string localName, XNamespace nameSpace, params XNamespace[] additionalNamespaces)

        {

            if (container == null || localName == null)

                throw new ArgumentNullException();

            var names = new[] { nameSpace }.Concat(additionalNamespaces).Select(ns => ns + localName).ToArray();

            return container.Elements().Where(e => names.Any(n => n == e.Name));

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            foreach (var xml in GetXml())

            {

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

                Console.WriteLine(xml);

                var dict = AdifDictionaryExtensions.ExtractAdifDictionary(new StringReader(xml));

                Console.WriteLine("Deserialized dictionary: ");

                Console.WriteLine(Newtonsoft.Json.JsonConvert.SerializeObject(dict, Newtonsoft.Json.Formatting.Indented));

            }

        }

​

        static IEnumerable<string> GetXml()

        {

            var xml = @"<clublog date=""2018-02-13T21:30:11+00:00"" 

        xmlns=""https://clublog.org/cty/v1.0"">

<entities>

<entity>

    <adif>1</adif>

    <name>CANADA</name>

    <prefix>VE</prefix>

    <deleted>FALSE</deleted>

    <cqz>5</cqz>

    <cont>NA</cont>

    <long>-80.00</long>

    <lat>45.00</lat>

</entity>

<entity>

    <adif>2</adif>

    <name>ABU AIL IS</name>

    <prefix>A1</prefix>

    <deleted>TRUE</deleted>

    <cqz>21</cqz>

    <cont>AS</cont>

    <long>45.00</long>

    <lat>12.80</lat>

    <end>1991-03-30T23:59:59+00:00</end>

</entity>

<!--Additional entities omitted-->

</entities>

</clublog>

";

            return new[] { xml, xml.Replace(@"https://clublog.org/cty/v1.0", @"http://www.clublog.org/cty/v1.0")};

        }

    }

​

    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 class Program

    {

        public static void Main()

        {

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

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Uncaught exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​