如何在表格单元格中添加复选框和combobox？
我正在创建一个包含表格和一些按钮的表单。
一张图片胜过千言万语：
如何将复选框和combobox放入表中？
我正在使用NetBeans。 我尝试使用拖放但没有工作。
这是我的表单代码。
public class HttpOutput extends javax.swing.JPanel { HttpElements current_Http_EleObject; /** * Creates new form HttpOutput */ public HttpOutput(HttpElements httpelements) { initComponents(); current_Http_EleObject=httpelements; TableColumn includeColumn = jTable1.getColumnModel().getColumn(0); includeColumn.setCellEditor(new DefaultCellEditor(new JCheckBox())); } 这是组合单元格插件复制演示：
import java.awt.*; import java.awt.event.*; import java.util.EventObject; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public class ComboCellInsetsDemo { public JComponent makeUI() { String[] columnNames = {"Name", "Check", "Condition"}; Object[][] data = { {"bbb", false, "="}, {"aaa", true, "<"} }; DefaultTableModel model = new DefaultTableModel(data, columnNames) { @Override public Class getColumnClass(int column) { return getValueAt(0, column).getClass(); } }; JTable table = new JTable(model); table.setRowHeight(36); table.setAutoCreateRowSorter(true); TableColumn column = table.getColumnModel().getColumn(2); column.setCellRenderer(new ComboBoxCellRenderer()); column.setCellEditor(new ComboBoxCellEditor()); return new JScrollPane(table); } public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { createAndShowGUI(); } }); } public static void createAndShowGUI() { JFrame f = new JFrame(); f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); f.getContentPane().add(new ComboCellInsetsDemo().makeUI()); f.setSize(320, 240); f.setLocationRelativeTo(null); f.setVisible(true); } } class ComboBoxPanel extends JPanel { private String[] m = new String[] {">", "<", "=", "<="}; protected JComboBox comboBox = new JComboBox (m) { @Override public Dimension getPreferredSize() { Dimension d = super.getPreferredSize(); return new Dimension(40, d.height); } }; public ComboBoxPanel() { super(); setOpaque(true); comboBox.setEditable(true); add(comboBox); } } class ComboBoxCellRenderer extends ComboBoxPanel implements TableCellRenderer { public ComboBoxCellRenderer() { super(); setName("Table.cellRenderer"); } @Override public Component getTableCellRendererComponent( JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { setBackground(isSelected?table.getSelectionBackground() :table.getBackground()); if(value!=null) { comboBox.setSelectedItem(value); } return this; } } class ComboBoxCellEditor extends ComboBoxPanel implements TableCellEditor { public ComboBoxCellEditor() { super(); comboBox.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { fireEditingStopped(); } }); addMouseListener(new MouseAdapter() { @Override public void mousePressed(MouseEvent e) { fireEditingStopped(); } }); } @Override public Component getTableCellEditorComponent( JTable table, Object value, boolean isSelected, int row, int column) { this.setBackground(table.getSelectionBackground()); comboBox.setSelectedItem(value); return this; } //Copid from DefaultCellEditor.EditorDelegate @Override public Object getCellEditorValue() { return comboBox.getSelectedItem(); } @Override public boolean shouldSelectCell(EventObject anEvent) { if(anEvent instanceof MouseEvent) { MouseEvent e = (MouseEvent)anEvent; return e.getID() != MouseEvent.MOUSE_DRAGGED; } return true; } @Override public boolean stopCellEditing() { if(comboBox.isEditable()) { comboBox.actionPerformed(new ActionEvent(this, 0, "")); } fireEditingStopped(); return true; } //Copid from AbstractCellEditor //protected EventListenerList listenerList = new EventListenerList(); transient protected ChangeEvent changeEvent = null; @Override public boolean isCellEditable(EventObject e) { return true; } @Override public void cancelCellEditing() { fireEditingCanceled(); } @Override public void addCellEditorListener(CellEditorListener l) { listenerList.add(CellEditorListener.class, l); } @Override public void removeCellEditorListener(CellEditorListener l) { listenerList.remove(CellEditorListener.class, l); } public CellEditorListener[] getCellEditorListeners() { return listenerList.getListeners(CellEditorListener.class); } protected void fireEditingStopped() { // Guaranteed to return a non-null array Object[] listeners = listenerList.getListenerList(); // Process the listeners last to first, notifying // those that are interested in this event for(int i = listeners.length-2; i>=0; i-=2) { if(listeners[i]==CellEditorListener.class) { // Lazily create the event: if(changeEvent == null) changeEvent = new ChangeEvent(this); ((CellEditorListener)listeners[i+1]).editingStopped(changeEvent); } } } protected void fireEditingCanceled() { // Guaranteed to return a non-null array Object[] listeners = listenerList.getListenerList(); // Process the listeners last to first, notifying // those that are interested in this event for(int i = listeners.length-2; i>=0; i-=2) { if(listeners[i]==CellEditorListener.class) { // Lazily create the event: if(changeEvent == null) changeEvent = new ChangeEvent(this); ((CellEditorListener)listeners[i+1]).editingCanceled(changeEvent); } } } }
includeColumn.setCellEditor(new DefaultCellEditor(new JCheckBox()));
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没有理由在
JTable使用或编写JCheckBoxRenderer和Editor，把它放在true/false，因为JTable对JCheckbox的内置支持也是Renderer和Editor -
覆盖正确的
column，returns Boolean.Class -
让
JComboBox读取使用combobox作为编辑器 -
每个数据都存储在XxxTableModel中 ，并且使用
DefaultTableModel会在JTablesJTables view自动显示事件 -
必须在Event Dispatch Thread上完成对XxxTableModel的所有更新