private void BtnWithdraw_Click(object sender, RoutedEventArgs e)
{
if (decimal.TryParse(TxtAmount.Text, out decimal bedrag))
{
try
{
ActiveAccount.Withdraw(bedrag);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
catch (InvalidOperationException ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
UpdateGUI();
}
else
{
MessageBox.Show("Invalid amount entered.", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
TxtAmount.Focus();
TxtAmount.Select(0, TxtAmount.Text.Length);
}
}
private void TxtAmount_TextChanged(object sender, TextChangedEventArgs e)
{
if (decimal.TryParse(TxtAmount.Text.Replace(",", "").Replace(".", "").TrimStart('0'), out decimal result))
{
result /= 100;
amount = result;
TxtAmount.TextChanged -= TxtAmount_TextChanged;
TxtAmount.Text = result.ToString("N2", nfi);
TxtAmount.TextChanged += TxtAmount_TextChanged;
TxtAmount.Select(TxtAmount.Text.Length, 0);
}
}