using System.Collections.Generic;
using System.Xml.Serialization;
public static void Main()
List<ChatUsuarioModel> tweets = new List<ChatUsuarioModel>();
tweets.Add(new ChatUsuarioModel());
tweets.Add(new ChatUsuarioModel());
XmlSerializer serializer = new XmlSerializer(typeof(List<ChatUsuarioModel>));
var stringwriter = new Utf8StringWriter();
serializer.Serialize(stringwriter, tweets);
Console.WriteLine(stringwriter.ToString());
public class ChatUsuarioModel
public string CodigoUsuario { get; set; } = "x";
public string CodigoTipoUsuarioChat { get; set; }= "y";
public class Utf8StringWriter : System.IO.StringWriter
public override System.Text.Encoding Encoding { get { return System.Text.Encoding.UTF8; } }