public async Task <IActionResult> ChangeRole(RoleFieldModel model)
        {
            string confirmText = null;
            var    returnModel = await getUserProps(model.UserName);

            return(PartialView("Settings/NameField", new NameFieldModel()
            {
                FirstName = returnModel.FirstName, LastName = returnModel.LastName, ContentOpened = true, ConfirmText = confirmText
            }));
        }
        public async Task <IActionResult> ChangeRole(RoleFieldModel model)
        {
            string confirmText = null;
            var    user        = await _userManager.FindByNameAsync(User.Identity.Name);

            var role = Enum.Parse(typeof(UserType), model.Role);

            if (user != null)
            {
                if (_context.Roles.SingleOrDefault(r => r.Name == role.ToString()) != null)
                {
                    user.ChangeRoleRequest = role.ToString();
                    var result = await _userManager.UpdateAsync(user);

                    if (result.Succeeded)
                    {
                        confirmText = "The request successfuly added.";
                    }
                    else
                    {
                        ModelState.AddModelError("", "The request doesn't added. Please, reload page or refer to administrator.");
                    }
                }
                else
                {
                    ModelState.AddModelError("", "The role doesn't exist.");
                }
            }
            else
            {
                ModelState.AddModelError("", "The user doesn't found. Please, reload page or refer to administrator.");
            }
            var returnModel = await getUserProps(User.Identity.Name);

            return(PartialView("Settings/RoleField", new RoleFieldModel()
            {
                Role = ((await _userManager.GetRolesAsync(user))[0]),
                ContentOpened = true,
                ConfirmText = confirmText,
                RoleRequest = (user.ChangeRoleRequest != null) ? user.ChangeRoleRequest : "Empty"
            }));
        }