如何获取所选单元格（JComboBox）在JTable中的当前位置

Question

private JPanel contentPane;
private JTable table;
private JComboBox<String> jcbtest;
private DefaultTableModel tablemodel;

    jcbtest=new JComboBox<String>();
    jcbtest.addItem("item1");
    jcbtest.addItem("item2");
    jcbtest.addItem("item3");
    jcbtest.addActionListener(new ActionListener(){
        public void actionPerformed(ActionEvent e){
            int curi=table.getSelectedRow();
            int curj=table.getSelectedColumn();
            JOptionPane.showMessageDialog(null, "actionListener:"+curi+"    "+curj);

        }
    });

    jcbtest.addItemListener(new ItemListener(){
        public void itemStateChanged (ItemEvent e){
            int curi=table.getSelectedRow();
            int curj=table.getSelectedColumn();
            JOptionPane.showMessageDialog(null, "itemstateChanged:"+curi+"  "+curj);               
        }
    });

    table = new JTable();String title[]={"姓名", "部门", "职位"};
    tablemodel=new DefaultTableModel(title, 3);
    table = new JTable(tablemodel){
        private static final long serialVersionUID=1L;
        public boolean isCellEditable( int rowIndex, int columnIndex){
            if( rowIndex == getRowCount() - 1 ){
                DefaultTableModel dtm=(DefaultTableModel)dataModel;
                dtm.addRow(new String[]{"","",""});
            }
            return true;
        }
    };
    table.getColumnModel().getColumn(1).setCellEditor(new DefaultCellEditor(jcbtest));

    scrollPane.setViewportView(table);

First time to select, it shows no selected cell

After that, it gave me the position of previous operation

How to get current selected cell position?

Answer 1

Construct a DefaultCellEditor with a JComboBox<String> , as illustrated here , and use it as a cell editor . When applied to an editable cell, each cell's current selection will be stored in the TableModel .

What should I do to get the selected-cell's position?

The JComboBox is used only as a cell editor , and it's selection index is meaningless except when in use as an editor. At all other times, the chosen value in stored in the TableModel . Given a particular value, you can use the getIndexOf() method of the editor's DefaultComboBoxModel to determine the position it had when in use as an editor.