private async Task AddUserAccType()
        {
            var viewModel = new UserAccountTypeDetailViewModel(new UserAccountTViewModel(), _usersAccountTypeStore, _pageService);

            viewModel.UserAccountTypeAdded += (source, usersAccount) =>
            {
                UsersAccount.Add(new UserAccountTViewModel(usersAccount));
            };

            await _pageService.PushModalAsync(new UserAccountTypeDetailPage(viewModel));
        }
        private async Task LoadData()
        {
            if (_isDataLoaded)
            {
                return;
            }

            _isDataLoaded = true;

            var usersAccount = await _usersAccountTypeStore.GetUsersAccountTypeAsync();

            foreach (var u in usersAccount)
            {
                UsersAccount.Add(new UserAccountTViewModel(u));
            }
        }