public async void OnConfirmeAsDelivred()
        {
            string result = await App.Current.MainPage.DisplayPromptAsync("Order code", "You will get the order code from the clients when you give them the orders.", placeholder : "123456", maxLength : 6, keyboard : Keyboard.Numeric);

            if (result != null)
            {
                OrderFullInfo ofi = new OrderFullInfo();
                ofi.id_order   = Convert.ToInt32(OrderId);
                ofi.order_code = result.Trim();

                JObject jRes = await myHttpClient.sendHttpPutAsyncJson(Constants.ApiPutDelivringComplete, ofi);

                await App.Current.MainPage.DisplayAlert((string)jRes["MessageTitele"], (string)jRes["Message"], "Ok");

                if (!(bool)jRes["Error"])
                {
                    await Shell.Current.GoToAsync($"..");
                }
            }
        }