CODEWITHSUNDEEP
javaswingjfilechooser
Pravesh Bansal
Pravesh Bansal

Reputation: 33

Files are showing selected file after opening the dialog box in jfilechooser multi file chooser enabled

I am dealing with this swing component JfileChooser . I am selecting multiple file and then clicked ok . After that if i again open to select the file it is showing me the previous selected file which i dont want . I want previous directory to be maintained but not the previous files .It gives very Bad User experience .

Here is the code Snippet what i have written.

    JFileChooser fileopen = new JFileChooser();   
        private void fileButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_fileButtonActionPerformed
            fileopen.setMultiSelectionEnabled(true);
            int ret = fileopen.showDialog(null, "Open file");
            if (ret == JFileChooser.APPROVE_OPTION) {
                File[] file = fileopen.getSelectedFiles();
                fileText.setText(file[0].getAbsolutePath());
                for( int i =1;i < file.length;i++)
                {
                    fileText.append("||");       
                    fileText.append(file[i].getAbsolutePath());
                }
            }else {
                log.info("File access cancelled by user.");
        }       

    }//GEN-LAST:event_fileButtonActionPerformed

I tried with those setcurrentdirecotory and all . Any help will be appreciated.

Upvotes: 1

Views: 502

Answers (1)

MadProgrammer
MadProgrammer

Reputation: 347194

Either create a new instance of JFileChooser each time you need it or call setSelectedFiles and pass it null

Updated

So, I had a quick look at the setSelectedFile and setSelectedFiles methods and they should be clearing the selection and the "file name" field, but it doesn't seem to be working for me on Mac OS, so it's likely a look and feel issue.

What I tend to do is cheat. I store the last directory value in the Preferences API, I do this because it's super easy and it also means that the value persists across executions, super helpful. If you don't want to persist it across executions, you could use a Map or Properties or some other variable, that's up to you

public class TestPane extends JPanel {

    public TestPane() {
        setLayout(new GridBagLayout());
        JButton btn = new JButton("...");
        add(btn);
        btn.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JFileChooser fileopen = new JFileChooser();
                String path = Preferences.userNodeForPackage(TestPane.class).get("FileAccess.lastSelectedDirectory", null);
                if (path != null) {
                    File filePath = new File(path);
                    if (filePath.exists() && filePath.isDirectory()) {
                        fileopen.setCurrentDirectory(filePath);
                    }
                }
                fileopen.setMultiSelectionEnabled(true);
                int ret = fileopen.showDialog(null, "Open file");
                if (ret == JFileChooser.APPROVE_OPTION) {
                    File[] file = fileopen.getSelectedFiles();
                    System.out.println("You selected " + file.length + " files");
                    Preferences.userNodeForPackage(TestPane.class).put("FileAccess.lastSelectedDirectory", fileopen.getCurrentDirectory().getAbsolutePath());
                } else {
                    System.out.println("File access cancelled by user.");
                }
            }
        });
    }

    @Override
    public Dimension getPreferredSize() {
        return new Dimension(200, 200);
    }

}

Upvotes: 1

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