🚀 go-pugleaf

The best way to do this is to install a VetoableChangeListener to the
internalFrame.
Something like the following code may work to you.

 internalFrame.addetoableChangeListener(new VetoableChangeListener() {
   public
   void vetoableChange(PropertyChangeEvent evt)
    throws PropertyVetoException
   {
    if (evt.getPropertyName().equals(JInternalFrame.IS_CLOSED_PROPERTY)) {

      if (new MessageDialog()) this.setVisible(false);
      else {
      throw new PropertyVetoException("Cannot Close", evt);
    }

     }
    }
 );


Michael H�rtig wrote:

> Hi all
>
> I have a problem with my JInternalFrame. If the user select Close from
> System-Menu (X) I want to ask if he is sure or not. I added a
> InternalFrameListener and set the DefaultCloseOperation. But how can I
> say NO, don't close???? The Frame always closes.
>
> Here my code..
>
> public MyInternalFrame(){
>   ...
>   this.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
>   this.addInternalFrameListener(new InternalFrameAdapter(){
>     public void internalFrameClosing(InternalFrameEvent ev){
>       //Here is a call of a Dialog that returns true (Yes, close) or
> false (No, not close)
>       if (new MessageDialog()) this.setVisible(false);
>       else return; //Doesnt work
>     }
>   });
>   ...
> }
>
> Hoping for help
>
> Michael
> --
>            ////
>           (o o)
> +-----ooO--(_)--Ooo---------------------------------------+
> |                                                         |
> | Michael H�rtig                 Neumann & Partner        |
> |                                Informationssysteme GmbH |
> | Softwareentwicklung            An der Hohen Stra�e 1    |
> |                                08393 Meerane            |
> |                                                         |
> +------------Oooo-----------------------------------------+
>         oooO (  )
>         (  )  (_)
>          (_)

--

Saludos.
Rodolfo Botto.


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