export xml ef core exam

 public static string ExportPrisonersInbox(SoftJailDbContext context, string prisonersNames)
        {
            var names = prisonersNames.Split(',', StringSplitOptions.RemoveEmptyEntries).ToArray();

            var prisoners = context.Prisoners
                .Where(x=>names.Any(i=>i==x.FullName))
                .ToArray()
                .Select(x=>new ExportPrisonerDto
                {
                    Id = x.Id,
                    Name = x.FullName,
                    IncarcerationDate = x.IncarcerationDate.ToString("yyyy-MM-dd",CultureInfo.InvariantCulture),
                    EncruptedMessages = x.Mails.Select(m=>new ExportMessageDto
                    {

                     Description =new string(m.Description.Reverse().ToArray())

                    }).ToArray()
                })
                .OrderBy(x=>x.Name)
                .ThenBy(x=>x.Id)
                .ToArray();

            StringBuilder sb = new StringBuilder();
            var xmlNamespaces = new XmlSerializerNamespaces(new[] { XmlQualifiedName.Empty });
            var serializer = new XmlSerializer(typeof(ExportPrisonerDto[]), new XmlRootAttribute("Prisoners"));
            serializer.Serialize(new StringWriter(sb),prisoners, xmlNamespaces);

            return sb.ToString();
        }

// ето как излиза :Д
<Prisoners>
  <Prisoner>
    <Id>3</Id>
    <Name>Binni Cornhill</Name>
    <IncarcerationDate>1967-04-29</IncarcerationDate>
    <EncruptedMessages>
      <Message>
        <Description>!?sdnasuoht evif-ytnewt rof deksa uoy ro orez artxe na ereht sI</Description>
      </Message>
    </EncruptedMessages>
  </Prisoner>
......