async void DeleteShop(object sender)
        {
            try
            {
                var menuItem = sender as MenuItem;
                var shop     = menuItem.CommandParameter as Shop;
                var response = await s_services.DeleteShop(shop.Id);

                if (response.StatusCode == System.Net.HttpStatusCode.OK)
                {
                    shopsCollection.Remove(shop);
                    await DisplayAlert("Done", "Selected item has been deleted Successfully", "Ok");
                }
            }
            catch (Exception ex)
            {
                await DisplayAlert("Error", ex.Message, "Ok");
            }
        }