public async void GetCombo()
{
// lay du lieu tu db
myAPI = RestService.For <IMyAPI>("https://goldenspa.azurewebsites.net");
var result = await myAPI.GetListCombo();
mAdapterCombo = new Home_Combo_Customer_Adapter(result);
mRecyclerViewCombo.SetAdapter(mAdapterCombo);
mAdapterCombo.ItemClick += (s, e) =>
{
var intent = new Intent(Activity, typeof(Customer.activity_Service_Customer));
intent.PutExtra("ComboId", result[e].MaDV);
intent.PutExtra("ComboName", result[e].NameService);
intent.PutExtra("PromotionName", result[e].price.ToString());
intent.PutExtra("Index", e.ToString());
StartActivity(intent);
};
}