Asp.Net MVC download varbinary stored in database as file - asp.net

Question

i want to download varbinary stored in database as a file. I am able to download the file, however all the file that downloaded from my application are unable to open. I noticed that i upload pdf file with size 200 kb. But when i download that file, its only return 30 byte.
Here is the code:
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public ActionResult Upload(Upload model, HttpPostedFileBase uploadFile, String random_number, String rcf_number)
{
var db = new RCFOnlineEntities();
if(uploadFile != null)
{
byte[] bytes;
using (BinaryReader br = new BinaryReader(uploadFile.InputStream))
{
bytes = br.ReadBytes(uploadFile.ContentLength);
}
model.file_base6 = bytes;
model.file_ext = uploadFile.ContentType;
model.file_name = uploadFile.FileName;
model.rcfnumber = rcf_number;
model.randomnumber = random_number;
}
db.Uploads.Add(model);
db.SaveChanges();
return RedirectToAction("Edit", "GetRCFOnline", new { random_number = random_number });
}
[HttpGet]
public FileResult DownLoadFile(int id, String random_number)
{
List<Upload> ObjFiles = GetUploadClasses(random_number);
var FileById = (from FC in ObjFiles
where FC.file_id.Equals(id)
select new { FC.file_name, FC.file_base6 , FC.file_ext}).ToList().FirstOrDefault();
return File(FileById.file_base6, FileById.file_ext, FileById.file_name);
}
Could you tell me where is the error within my code ?

Answer 1

Solution-1:
Use uploadFile.InputStream.Length instead uploadFile.ContentLength for correct upload file size i.e.
using (BinaryReader br = new BinaryReader(uploadFile.InputStream))
{
bytes = br.ReadBytes(uploadFile.InputStream.Length);
}
Solution-2:
If BinaryReader is not a fixed requirement then use below solution to get uploaded file's bytes i.e.
byte[] bytes = new byte[uploadFile.InputStream.Length];
uploadFile.InputStream.Read(bytes, 0, bytes.Length);