public ActionResult AddImage(AspNetUsers model, HttpPostedFileBase inputimage)
        {
            var db = new MarketOnlineContext();

            if (inputimage != null)
            {
                model.Id = User.Identity.GetUserId();

                model.Image = new byte[inputimage.ContentLength];
                inputimage.InputStream.Read(model.Image, 0, inputimage.ContentLength);
            }

            db.AspNetUsers.Attach(model);
            db.Entry(model).Property(x => x.Image).IsModified = true;
            try
            {
                db.SaveChanges();
            }
            catch (DbEntityValidationException ex)
            {
                foreach (var entityValidationErrors in ex.EntityValidationErrors)
                {
                    foreach (var validationError in entityValidationErrors.ValidationErrors)
                    {
                        Response.Write("Property: " + validationError.PropertyName + " Error: " + validationError.ErrorMessage);
                    }
                }
            }
            return(View(model));
        }