protected async override void OnAppearing()
 {
     base.OnAppearing();
     PaymentVM.TapCount     = 0;
     PaymentVM.TapCount1    = 0;
     PaymentVM.IsPageEnable = true;
     await PaymentVM.GetAllPayments();
 }
 private async void popup_onitemselected(string item)
 {
     if (item == "Refresh Payments")
     {
         await PaymentVM.GetAllPayments();
     }
     if (item == "Make Payment")
     {
         await this.Navigation.PushModalAsync(new MakePaymentPage());
     }
 }