//
        // GET: /Manage/ChangeLabel
        public async Task <ActionResult> ChangeLabel()
        {
            AppUser user = await UserManager.FindByIdAsync(User.Identity.GetUserId());

            if (user != null)
            {
                ChangeLabelViewModel ChangeLabelViewModel = new ChangeLabelViewModel
                {
                    Label = user.LabelName
                };
                return(View(ChangeLabelViewModel));
            }
            else
            {
                return(View());
            }
        }
        public async Task <ActionResult> ChangeLabel(ChangeLabelViewModel model)
        {
            if (!ModelState.IsValid)
            {
                return(View(model));
            }

            var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());

            if (user != null)
            {
                user.LabelName = model.Label;
                await UserManager.UpdateAsync(user);

                return(RedirectToAction("Index", new { Message = ManageMessageId.ChangeLabelSuccess }));
            }

            return(View(model));
        }