using System;

using System.Runtime.Serialization;             

using System.IO;

using Newtonsoft.Json;

using System.Xml.Linq;

using System.Linq;

​

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

​

//https://stackoverflow.com/questions/64611423/cant-deserialize-xml-using-datacontractserializer

​

public class Program

{

    public static void Main()

    {

        var request="<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\">\r\n    <s:Body>\r\n        <ProcessOneWayEvent xmlns=\"http://schemas.microsoft.com/sharepoint/remoteapp/\">\r\n            <properties xmlns:i=\"http://www.w3.org/2001/XMLSchema-instance\">\r\n                <CultureLCID>1033</CultureLCID>\r\n            </properties>\r\n        </ProcessOneWayEvent>\r\n    </s:Body>\r\n</s:Envelope>";

        Console.WriteLine(request);

        var response=XmlDeserializer<Envelope>(request);

        //here problem always null ProcessOneWayEvent , i can't change the xml document so is there any woraround with this in netcore without using xmlsreializer

        Console.WriteLine(JsonConvert.SerializeObject(response));

        Assert.AreEqual(1033, response.Body.ProcessOneWayEvent.Properties.CultureLCID);

    }

​

    public static T XmlDeserializer<T>( string text)

    {

        using (Stream stream = new MemoryStream())

        {

            byte[] data = System.Text.Encoding.UTF8.GetBytes(text);

            stream.Write(data, 0, data.Length);

            stream.Position = 0;

            var deserializer = new DataContractSerializer(typeof(T));

            return (T)deserializer.ReadObject(stream);

        }

    }

    // FIXED namespace in the following

    [DataContract(Name = "Body", Namespace = "http://schemas.microsoft.com/sharepoint/remoteapp/")]

    public class Body

    {

        [DataMember(Name = "ProcessOneWayEvent")]

        public ProcessOneWayEvent ProcessOneWayEvent;

    }

    [DataContract(Name = "properties", Namespace = "http://schemas.microsoft.com/sharepoint/remoteapp/")]

    public class SPRemoteEventProperties

    {

        [DataMember(Name = "CultureLCID") ]

        public int CultureLCID { get; set; }

    }

    // The following are UNCHANGED

    [DataContract(Name = "Envelope", Namespace = "http://schemas.xmlsoap.org/soap/envelope/")]

    public class Envelope

    {

        [DataMember(Name = "Body")]

        public Body Body;

    }

​

    [DataContract(Name = "ProcessOneWayEvent",Namespace = "http://schemas.microsoft.com/sharepoint/remoteapp/")]

    public class ProcessOneWayEvent

    {

        [DataMember(Name = "properties")]

        public SPRemoteEventProperties Properties { get; set; }

    }

​

}