JTable help

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Posts: 93

posted 19 years ago

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I have a table and when a row is selected I need to open another frame to display its detailed information, can someone pls. show me how to do it.
Moreover, the view detailed information frame needs to be displayed next to the selected row. One last thing I need to have this frame updated when a different row is selected instead of open another frame for the new selected row.
Pls. help!

Thanks!

Craig Wood

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Posts: 1535

posted 19 years ago

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import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
 
public class TableDetails implements ListSelectionListener
{
    JTable table;
    JLabel label;
    JDialog dialog;
 
    public TableDetails(Frame f)
    {
        label = new JLabel();
        label.setHorizontalAlignment(JLabel.CENTER);
        dialog = new JDialog(f, "details", false);
        dialog.getContentPane().add(label);
        dialog.setSize(240,140);
    }
 
    public void valueChanged(ListSelectionEvent e)
    {
        if(!e.getValueIsAdjusting())
        {
            int row = table.getSelectedRow();
            int cols = table.getColumnCount();
            String s = "<html>";
            for(int col = 0; col < cols; col++)
            {
                s += "details for " + (String)table.getValueAt(row, col);
                if(col < cols-1)
                    s += "<br>";
            }
            label.setText(s);
            updateLocation(row);
        }
    }
 
    private void updateLocation(int row)
    {
        Rectangle r = table.getCellRect(row, 0, true);
        int w = table.getWidth();
        Point p = new Point(w, r.y);
        SwingUtilities.convertPointToScreen(p, table);
        dialog.setLocation(p.x, p.y);
        if(!dialog.isVisible())
            dialog.setVisible(true);
        else
            dialog.toFront();
    }
 
    private JTable getTable()
    {
        String[] colNames = { "column 1", "column 2", "column 3" };
        int rows = 8, cols = 3;
        Object[][] data = new Object[rows][cols];
        for(int row = 0; row < rows; row++)
            for(int col = 0; col < cols; col++)
                data[row][col] = "item " + (row * cols + col + 1);
        DefaultTableModel model = new DefaultTableModel(data, colNames);
        table = new JTable(model);
        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        table.getSelectionModel().addListSelectionListener(this);
        return table;
    }
 
 
    public static void main(String[] args)
    {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        TableDetails td = new TableDetails(f);
        f.getContentPane().add(new JScrollPane(td.getTable()));
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
}

edit - remove unnecessary import statement
[ February 24, 2006: Message edited by: Craig Wood ]

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