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<< Click to Display Table of Contents >> Closing Event - Java |
  
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<< Click to Display Table of Contents >> Closing Event - Java |
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[GUI version only]
VPE requests confirmation from your application, if the preview can be closed.
public void Closing(
CancelEvent e
)
CancelEvent e
The cancel event is defined as:
public class CancelEvent extends java.util.EventObject {
private boolean cancel = false;
public boolean getCancel() {
return cancel;
}
public void setCancel(boolean cancel) {
this.cancel = cancel;
}
public CancelEvent(VpeControl source) {
super(source);
}
}
You can call e.setCancel(true) if you want to cancel the event, i.e. deny that the preview is closed
Example:
public void Closing(CancelEvent e) {
if (!myDataIsSaved) {
e.setCancel(true);
JOptionPane.showMessageDialog(frame, "You must save first.");
}
else {
e.setCancel(false);
JOptionPane.showMessageDialog(frame, "Goodbye.");
}
}