public async Task Delete(string deleteId)
{
string[] stuff = deleteId.Split(".");
int fileId = int.Parse(stuff[0]);
int arcId = int.Parse(stuff[1]);
UserData me = NoteDataManager.GetUserData(_userManager, User, _db);
List <Mark> list = await _db.Mark.Where(p => p.UserId == me.UserId && p.NoteFileId == fileId && p.ArchiveId == arcId).ToListAsync();
_db.RemoveRange(list);
await _db.SaveChangesAsync();
}