A row header column with the TableColumnModel : Table Column « Swing JFC « Java

A row header column with the TableColumnModel

A row header column with the TableColumnModel

Java Swing, 2nd Edition
By Marc Loy, Robert Eckstein, Dave Wood, James Elliott, Brian Cole
ISBN: 0-596-00408-7
Publisher: O'Reilly 
// RowHeaderTable.java
//A simple application that demonstrates the use of the TableColumnModel
//class to build a row header column that scrolls with the regular data

import java.awt.BorderLayout;
import java.awt.Color;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JViewport;
import javax.swing.ScrollPaneConstants;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableColumnModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;

public class RowHeaderTable extends JFrame {

  public RowHeaderTable() {
    super("Row Header Test");
    setSize(300, 200);

    TableModel tm = new AbstractTableModel() {
      String data[] = { "", "a", "b", "c", "d", "e" };

      String headers[] = { "Row #", "Column 1", "Column 2", "Column 3",
          "Column 4", "Column 5" };

      public int getColumnCount() {
        return data.length;

      public int getRowCount() {
        return 1000;

      public String getColumnName(int col) {
        return headers[col];

      // Synthesize some entries using the data values & the row #
      public Object getValueAt(int row, int col) {
        return data[col] + row;

    // Create a column model for the main table. This model ignores the
    // first
    // column added, and sets a minimum width of 150 pixels for all others.
    TableColumnModel cm = new DefaultTableColumnModel() {
      boolean first = true;

      public void addColumn(TableColumn tc) {
        // Drop the first column . . . that'll be the row header
        if (first) {
          first = false;
        tc.setMinWidth(150); // just for looks, really...

    // Create a column model that will serve as our row header table. This
    // model picks a maximum width and only stores the first column.
    TableColumnModel rowHeaderModel = new DefaultTableColumnModel() {
      boolean first = true;

      public void addColumn(TableColumn tc) {
        if (first) {
          first = false;
        // Drop the rest of the columns . . . this is the header column
        // only

    JTable jt = new JTable(tm, cm);

    // Set up the header column and get it hooked up to everything
    JTable headerColumn = new JTable(tm, rowHeaderModel);

    // Make sure that selections between the main table and the header stay
    // in sync (by sharing the same model)

    // Make the header column look pretty

    // Put it in a viewport that we can control a bit
    JViewport jv = new JViewport();

    // With out shutting off autoResizeMode, our tables won't scroll
    // correctly (horizontally, anyway)

    // We have to manually attach the row headers, but after that, the
    // scroll
    // pane keeps them in sync
    JScrollPane jsp = new JScrollPane(jt);
    jsp.setCorner(ScrollPaneConstants.UPPER_LEFT_CORNER, headerColumn
    getContentPane().add(jsp, BorderLayout.CENTER);

  public static void main(String args[]) {
    RowHeaderTable rht = new RowHeaderTable();


Related examples in the same category

1.Combine TableModel and ColumModelCombine TableModel and ColumModel
2.JTable with a custom column modelJTable with a custom column model
3.Install Table Column to TableColumnModelInstall Table Column to TableColumnModel
4.Swing Table Column ToolTip SampleSwing Table Column ToolTip Sample
5.Table ColumnModel and TableColumnModelListenerTable ColumnModel and TableColumnModelListener
6.Table header: Label Header with iconTable header: Label Header with icon
7.Table Headerless SampleTable Headerless Sample
8.Multiline table headerMultiline table header
9.Row Number Table Header
10.Frozen Column Table Header
11.Packing a Column of a JTable Component according to the header text
12.Packing a Column of a JTable Component according to the row data
13.Set column width based on cell renderer
14.Set table column auto-resize off
15.Get the columns from TableColumnModel in the order that they appear in the view
16.Get column count
17.Returns the TableColumn associated with the specified column index in the model
18.Setting the Width of a Column in a JTable Component
19.Disable auto resizing, Set the first visible column to 100 pixels wide
20.Setting the Column Resize Mode of a JTable Component: Disable auto resizing
21.When the width of a column is changed, the width of the right-most column is changed
22.When the width of a column is changed, all columns to the right are resized
23.When the width of a column is changed, only the columns to the left and right of the margin change
24.When the width of a column is changed, the widths of all columns are changed
25.Locking the Width of a Column in a JTable Component
26.This program demonstrates how to work with rows and columns in a table.