POS - Enter product price all times

This code snippet is intented to implement a way to enter the price manually when selecting any product.

This code has been copied from this forum thread.

1. Login as Administrator and go to Maintenance-->Resources and select Ticket.Buttons resource.
2. Add a new line:

   <event key="ticket.addline" code="event.addline"/>

3. Create new resource event.addline with this content:

 
 import javax.swing.JOptionPane;
 
 value = javax.swing.JOptionPane.showInputDialog("Price", "");
 
 try {
  Double newPrice = new Double(value);
  line.setPrice(newPrice);
 
 } catch (NumberFormatException e) {
  JOptionPane.showMessageDialog(null, "Not valid number: " + value, "Error", JOptionPane.PLAIN_MESSAGE);
 
 }

4. Save changes and restart the application.