private void CheckCardBalance()
{
MessageBoxLayoutInfo messageBox = new MessageBoxLayoutInfo();
if (MainWindow.CardUid != null)
{
var card = rfidCardRequest.Get(MainWindow.CardUid);
if (card == null)
{
throw new NullReferenceException("Invalid card!");
}
else
{
var cardInfo = new CardInfo(card);
messageBox = cardInfo.GetMessageBox();
}
}
else
{
messageBox.Message = "Operation canceled!";
}
MainWindow.contentControl.Content = MainWindow.POSMainMenuView;
messageBox.ShowDialog();
}
public async void ChangeToControlVoid(UserControl previousControl, string message)
{
MessageBoxLayoutInfo messageBox = new MessageBoxLayoutInfo();
MainWindow.contentControl.Content = ChangeToControl(previousControl, message);
try
{
MainWindow.CardUid = await MainWindow.MFRC522ReaderWriter.ReadUIDAsync();
#region Checking card balance
if (previousControl == MainWindow.POSMainMenuView)
{
CheckCardBalance();
}
#endregion Checking card balance
if (previousControl == MainWindow.PaymentMethodUserControl)
{
MainWindow.contentControl.Content = MainWindow.CardReadingUserControl.ChangeToControl(this, message);
if (MainWindow.CardUid != null)
{
ExecuteTransaction();
messageBox.Message = "Payment started. Please take your card and pay at the cash payment point. Your card will be activated after payment is completed.";
MainWindow.contentControl.Content = MainWindow.POSMainMenuView;
messageBox.ShowDialog();
}
else
{
messageBox.Message = "PAYMENT CANCELED\n TRY AGAIN";
messageBox.MessageBoxContent.Background = new SolidColorBrush(Color.FromRgb(211, 105, 105));
MainWindow.contentControl.Content = previousControl;
messageBox.ShowDialog();
}
}
}
catch (NullReferenceException e)
{
messageBox.Message = e.Message;
MainWindow.contentControl.Content = previousControl;
messageBox.ShowDialog();
}
catch (Exception e)
{
messageBox.Message = e.Message;
MainWindow.contentControl.Content = previousControl;
messageBox.ShowDialog();
}
}
