Odata naming file return error message of the - asp.net

Question

I have this custom Odata function to download pdf from download pdf database. I have some issues
1.with Pdf name does not name "reportname.pdf" it is named response.pdf as
2.return error message of reportBinary is null
[HttpGet]
[ODataRoute("GetDownloadReport(downloadId={downloadId})")]
public HttpResponseMessage GetDownloadReport(Guid downloadId)
var received = DateTime.UtcNow;
byte[] reportBinary = null;
string queryString = "SELECT report FROM downloads WHERE id = #downloadId ";
bool success = false;
using (SqlConnection conn = new SqlConnection(connectionString))
{
//get the binary from database
}
HttpResponseMessage response = null;
try
{
if (reportBinary == null)
return Request.CreateResponse(HttpStatusCode.Gone);
response = new HttpResponseMessage(HttpStatusCode.OK);
response.Content = new ByteArrayContent(reportBinary);
response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment") {
FileName = "PORTName.pdf"
};
response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
return response;
}
catch (Exception ex)
{
return Request.CreateResponse(HttpStatusCode.Gone);
}
}

Answer 1

try to set filename manually:
String headerInfo = "attachment; filename=" + System.Web.HttpUtility.UrlPathEncode("PORTName.pdf");
response.Content.Headers.Add("Content-Disposition", headerInfo);
I'm not sure what do you want to do about error message, but if you mean setting string content, just set it ;)
response = Request.CreateResponse(HttpStatusCode.Gone);
response.Content = new StringContent(...);
return response;
Consider using NotFound instead of Gone status code (Gone has very specific meaning).