Question

I am using a fileContentResult to render a file to the browser. It works well except that it throws an exception when the fileName contains international characters.
I remember reading somewhere that this feature does not support international characters but I am sure there mustbe a workaround or a best practice people follow in cases the application needs to upload files in countries other than US.

Does anyone know of such a practice?Here is the ActionResult Method

public ActionResult GetFile(byte[] value, string fileName)
    {
        string fileExtension = Path.GetExtension(fileName);
        string contentType = GetContentType(fileExtension); //gets the content Type
        return File(value, contentType, fileName);
    }  

THanks in advance

Susan

Answer 1

public class UnicodeFileContentResult : ActionResult {

    public UnicodeFileContentResult(byte[] fileContents, string contentType) {
        if (fileContents == null || string.IsNullOrEmpty(contentType)) {
            throw new ArgumentNullException();
        }

        FileContents = fileContents;
        ContentType = contentType;
    }

    public override void ExecuteResult(ControllerContext context) {
        var encoding = UnicodeEncoding.UTF8;
        var request = context.HttpContext.Request;
        var response = context.HttpContext.Response;

        response.Clear();
        response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}", (request.Browser.Browser == "IE") ? HttpUtility.UrlEncode(FileDownloadName, encoding) : FileDownloadName));
        response.ContentType = ContentType;
        response.Charset = encoding.WebName;
        response.HeaderEncoding = encoding;
        response.ContentEncoding = encoding;
        response.BinaryWrite(FileContents);
        response.End();
    }

    public byte[] FileContents { get; private set; }

    public string ContentType { get; private set; }

    public string FileDownloadName { get; set; }
}