JTable 删除或隐藏或禁用特定单元格？

Question

I am wondering if the following is possible and if it is how to do it. I would like to remove or hide or disable selection of the "empty" cell from my table:

The following is the code that sets the table model, after this code I just populate the table with data:

myTable.setModel(new javax.swing.table.DefaultTableModel(
        new Object[][]{
            {null, null, null},
            {null, null, null},
            {null, null, null},
            {null, null, null},
            {null, null, null},
            {null, null, null},
            {null, null, null}
        },
        new String[]{
            null, null, null
        }) {
    Class[] types = new Class[]{
        java.lang.String.class, java.lang.String.class, java.lang.String.class
    };
    boolean[] canEdit = new boolean[]{
        false, false, false
    };

    @Override
    public Class getColumnClass(int columnIndex) {
        return types[columnIndex];
    }

    @Override
    public boolean isCellEditable(int rowIndex, int columnIndex) {
        return canEdit[columnIndex];
    }
}); 

Answer 1

okay after a bit of hacking i think i have a possible solution for you.

table.setCellSelectionEnabled(true);
table.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
table.setDefaultRenderer(Object.class, new Renderer());

---

public class Renderer extends DefaultTableCellRenderer {

public Component getTableCellRendererComponent(JTable table, Object value,
        boolean isSelected, boolean hasFocus, int row, int column) {

    if (table.getValueAt(row, column) == null && isSelected) {
        table.clearSelection();

        return super.getTableCellRendererComponent(table, value, false, false,
                row, column);
    } else {
        return  super.getTableCellRendererComponent(table, value, isSelected,
                hasFocus, row, column);
    }
}

}

this of cause only works if you have

table.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

enabled. and the empty cell still has the focus. but it may be good enough for your requirements