private void TaxExemption()
{
string result =
PosDialogWindow.PromptKeyboard(Types.Strings.EnterTaxExemptionId,
SelectedTicket.TaxExemptId);
if (result == null)
{
return;
}
if (String.IsNullOrEmpty(result))
{
result = null;
}
SelectedTicket.SetTaxExemptId(result);
SelectedTicket.Update();
// Update the tax on the payment control
paymentControl.SelectedTicket = SelectedTicket;
}