java - JTable 的特定行中的 Celleditor (JComboBox)

Question

我不知道如何在特定行中设置 jcombobox...现在我已经为所有行设置了这个 jcombobox，但我希望它只在一行中:

JComboBox cc = new JComboBox();
cc.addItem(jComboBox5.getSelectedItem()+"/"+jComboBox6.getSelectedItem()+"/"+jComboBox7.getSelectedItem()+" "+jComboBox1.getSelectedItem()+"."+jComboBox2.getSelectedItem());
jTable1.getColumnModel().getColumn(3).setCellEditor(new DefaultCellEditor(cc));
DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
    renderer.setToolTipText("CLICCA PER LE DATE");
jTable1.getColumnModel().getColumn(3).setCellRenderer(renderer);

Answer 1

but I want it in only one row:

重写 getCellEditor(...) 方法以返回给定行的特定编辑器:

import java.awt.*;
import java.awt.event.*;
import java.util.List;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.*;

public class TableComboBoxByRow extends JFrame
{
    List<TableCellEditor> editors = new ArrayList<TableCellEditor>(3);

    public TableComboBoxByRow()
    {
        // Create the editors to be used for each row

        String[] items1 = { "Red", "Blue", "Green" };
        JComboBox comboBox1 = new JComboBox( items1 );
        DefaultCellEditor dce1 = new DefaultCellEditor( comboBox1 );
        editors.add( dce1 );

        String[] items2 = { "Circle", "Square", "Triangle" };
        JComboBox comboBox2 = new JComboBox( items2 );
        DefaultCellEditor dce2 = new DefaultCellEditor( comboBox2 );
        editors.add( dce2 );

        String[] items3 = { "Apple", "Orange", "Banana" };
        JComboBox comboBox3 = new JComboBox( items3 );
        DefaultCellEditor dce3 = new DefaultCellEditor( comboBox3 );
        editors.add( dce3 );

        //  Create the table with default data

        Object[][] data =
        {
            {"Color", "Red"},
            {"Shape", "Square"},
            {"Fruit", "Banana"},
            {"Plain", "Text"}
        };
        String[] columnNames = {"Type","Value"};
        DefaultTableModel model = new DefaultTableModel(data, columnNames);

        JTable table = new JTable(model)
        {
            //  Determine editor to be used by row
            public TableCellEditor getCellEditor(int row, int column)
            {
                int modelColumn = convertColumnIndexToModel( column );

                if (modelColumn == 1 && row < 3)
                    return editors.get(row);
                else
                    return super.getCellEditor(row, column);
            }
        };

        JScrollPane scrollPane = new JScrollPane( table );
        getContentPane().add( scrollPane );
    }

    public static void main(String[] args)
    {
        TableComboBoxByRow frame = new TableComboBoxByRow();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.pack();
        frame.setVisible(true);
    }
}