how to put jcheckbox to table cell?

Question

Hello, I cannot put jChceckBox to jTable cell. More likely I can put checkBox to table, but when I run module with that table, the cell where should be checkBox shows text "true" or "false". The behaviors of that cell are the same like checkbox, but it shows text value instead of checkbox.

Here is the code.

DefaultTableModel dm = new DefaultTableModel();
dm.setDataVector(new Object[][]{{"dd", "Edit", "Delete"},
                                {"dd","Edit", "Delete"}},
                 new Object[]{"Include","Component", "Ekvi"});
jTable1 = new javax.swing.JTable();

jTable1.setModel(dm);


JCheckBox chBox=new JCheckBox();
jTable1.getColumn("Include").setCellEditor(new DefaultCellEditor(chBox));
jScrollPane1.setViewportView(jTable1);

Answer 1

The cell editor defines how the data inside your table behave according to editing its value, what you need is the right TableCellRenderer to properly display the checkbox inside the cell:

final JCheckBox checkBox = new JCheckBox();
jTable1.getColumn("Include").setCellRenderer(new DefaultTableCellRenderer() {
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
    {
      check.setSelected(((Boolean)value).booleanValue()) ;
      return check;
    }
});

Answer 2

Read the JTable API and follow the link to the Swing tutorial on "How to Use Table" for a working example.

Basically you store Boolean values in the TableModel, then you override the getColumnClass() method to return the class of each colulmn and the table will choose the appriate renderer and editor.