async Task ExecuteLoadCustomersCommand()
        {
            IsBusy = true;

            try
            {
                var items = await CustomerStore.ListAsync(q => q.OrderBy(x => x.CompanyName));

                Customers.SetItems(items);
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex);
            }
            finally
            {
                IsBusy = false;
            }
        }