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here is my code to filter data in a table when the user type in the textfield

public class Frame extends javax.swing.JFrame {

    Connection conn = null;  
    ResultSet rs = null;
    PreparedStatement pst = null;
    public void updateTable(){
        String sql = "select * from employee";
        pst = conn.prepareStatement(sql);
        rs = pst.executeQuery();
        }catch(Exception e){
        JOptionPane.showMessageDialog(rootPane, e);
    public void sortTable(){
        MyTableModel tableModel ;
        TableRowSorter<mytablemodel> sorter;
        tableModel = new MyTableModel();
        sorter = new TableRowSorter<mytablemodel>(tableModel);
        txtFilter.getDocument().addDocumentListener(new DocumentListener() {

            public void insertUpdate(DocumentEvent e) {

            public void removeUpdate(DocumentEvent e) {

            public void changedUpdate(DocumentEvent e) {
    public void filterTable(){
         MyTableModel tableModel = new MyTableModel();
        TableRowSorter<mytablemodel> sorter = new TableRowSorter<mytablemodel>(tableModel);
      RowFilter<mytablemodel,> rf = null;
    //If current expression doesn't parse, don't update.
    try {
        rf = RowFilter.regexFilter(txtFilter.getText());
    } catch (java.util.regex.PatternSyntaxException e) {
    private void formWindowOpened(java.awt.event.WindowEvent evt) {                                  
        // TODO add your handling code here:
        conn = connect.connectDb();

    private void txtFilterKeyReleased(java.awt.event.KeyEvent evt) {                                      
     * @param args the command line arguments
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {

            public void run() {
                new Frame().setVisible(true);

But it's not even showing the table.

ps:MyTableSorter i created that that extends from the DefaultTableSorter class
Updated 2-Jan-13 2:16am

1 solution

First of all please rename your class to something different - Frame is taken by AWT, that can ruin your day to use that name.

You should read here: How to Use Tables in Swing[^] @ Oracle tutorials.

You have a data binding - or at least try to make one. Please check if you have a LabelProvider and if the Model you set from the DB data is valid.

Let your TableSorter also work that generic way - you add it to the table and define the sorting rules in the custom table sorter you create.
That's it, no need to set the model new like you seem to do in filterTables();
Share this answer
TorstenH. 2-Jan-13 8:33am    
That was way to much answers - my machine told me that it did not add the answer and I did so again and again.
One should be enough - please make your way along the tutorial and see where you come out.

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