Asp.net mvc serving txt is truncated

Question

I am trying to execute a txt file made from a database using an action. The action is as follows:

public ActionResult ATxt()
{
    var articulos = _articulosService.ObteTotsArticles();
    return File(CatalegATxt.ATxt(articulos), "text/plain");
}

and CatalegATxt class:

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using WebDibaelsaMVC.DTOs.Busqueda;

namespace WebDibaelsaMVC.TxtLib
{
    public static class CatalegATxt
    {
         public static Stream ATxt(IEnumerable<ArticuloBusquedaDTO> articles)
         {
            var stream = new MemoryStream();
            var streamWriter = new StreamWriter(stream, Encoding.UTF8);
            foreach (ArticuloBusquedaDTO article in articles)
            {
                streamWriter.WriteLine(article.ToStringFix());
            }
            stream.Seek(0, SeekOrigin.Begin);
            return stream;
        }

        public static string ToStringFix(this ArticuloBusquedaDTO article)
        {
            string result = "";
            result += article.CodigoArticulo.PadRight(10, ' ').Substring(0, 10);
            result += article.EAN.Trim().PadLeft(13, '0').Substring(0, 13);
            result += article.NombreArticulo.PadRight(100, ' ').Substring(0, 100);
            result += article.Marca.PadRight(100, ' ').Substring(0, 100);
            result += article.Familia.PadRight(50, ' ').Substring(0, 50);
            result += article.PrecioCesion.ToStringFix();
            result += article.PVP.ToStringFix();
            return result;
        }

        private static string ToStringFix(this double numero)
        {
            var num = (int)Math.Round(numero * 100, 0);
            string result = num.ToString().PadLeft(10, '0');
            return result;
        }
    }
}

it just writes the lines of the file based on the material that I got from the database. But when I look at the file, it looks truncated. The file is about 8 MB. I also tried converting to byte[]before returning from ATxt with the same result.

Any idea?

Thanks,

Carles

Update: I also tried using XML from the same content, and also truncated. It is not truncated by the data (I thought it could be the EOF character in it), but it is cropped in the middle of the label ...

Answer 1

. .

, "", . - Close(), .

:

streamWriter.Flush();

MVC .

:

 public static Stream ATxt(IEnumerable<ArticuloBusquedaDTO> articles)
 {
    var stream = new MemoryStream();
    var streamWriter = new StreamWriter(stream, Encoding.UTF8);
    foreach (ArticuloBusquedaDTO article in articles)
    {
        streamWriter.WriteLine(article.ToStringFix());
    }
    // Flush the stream writer buffer
    streamWriter.Flush();
    stream.Seek(0, SeekOrigin.Begin);
    return stream;
}

, !

Answer 2

ActionResult?

ASP.NET MVC 1 FileStreamResult , . Stream .

public FileStreamResult Test()
{
  return new FileStreamResult(myMemoryStream, "text/plain");
}

, . - .

:

public FileStreamResult ATxt()
{
    var articulos = _articulosService.ObteTotsArticles();
    return new FileStreamResult(CatalegATxt.ATxt(articulos), "text/plain");
}

Answer 3

, MemoryStream. , . , - :

public static byte[] ATxt(IEnumerable<ArticuloBusquedaDTO> articles)
{
   using(var stream = new MemoryStream())
   {
        var streamWriter = new StreamWriter(stream, Encoding.UTF8);
        foreach (ArticuloBusquedaDTO article in articles)
        {
            streamWriter.WriteLine(article.ToStringFix());
        }

        return stream.ToArray();
    }
}