public async Task <IActionResult> DownloadTechNoteFile(int id)
{
var techNote = await _techNoteService.GetTechNoteById(id);
string filename = techNote.m_file_guid;
if (filename == null)
{
return(Content("filename not present"));
}
var TechNotesUserFilePath = _configuration["UserFilePath:TechNotesFiles"];
var rootPath = _hostingEnvironment.WebRootPath;
var path = Path.Combine(
rootPath,
TechNotesUserFilePath, filename);
var memory = new MemoryStream();
using (var stream = new FileStream(path, FileMode.Open))
{
await stream.CopyToAsync(memory);
}
memory.Position = 0;
return(File(memory, FileUploadHelper.GetContentType(path), techNote.m_file_name));
}