[英]java: dialog with 2 button for event “click on Jtable cell”?
I have a jtable with "data" in my java project: 我的java项目中有一个带有“data”的jtable:
DefaultTableModel model=(DefaultTableModel)jTablePolicyView.getModel();
for(Policy policy : sngltn.GetPerPolicies(cstmr.getPer()))
{
model.addRow(new Object[] {String.valueOf(policy.getPolicyId()),...,....});
}
I want that : 我要那个 :
So what I'm asking? 那我在问什么?
Is it possible? 可能吗?
Example code, greatly help me... 示例代码,对我有很大帮助......
Thank! 谢谢!
i try this code for my first mission(for clicking on each cell in my jtable)... but it's didnt work, why? 我尝试这个代码用于我的第一个任务(点击我的jtable中的每个单元格)......但它没有用,为什么?
my code: 我的代码:
public class UpdateCstmrForm extends javax.swing.JFrame
{
......
public UpdateCstmrForm(long person_id) throws Exception
{
DefaultTableModel model=(DefaultTableModel)jTablePolicyView.getModel();
.....
initComponents();
.....
for(Policy policy : sngltn.GetPerPolicies(cstmr.getPer()))
{
model.addRow(new Object[] {......});
}
jTablePolicyView.addMouseListener(new MouseAdapter()
{
public void mouseClicked(MouseEvent e)
{
if (e.getClickCount() == 2)
{
JTable target = (JTable)e.getSource();
int row = target.getSelectedRow();
int column = target.getSelectedColumn();
System.out.println(model.getValueAt(row, column));
}
}
}
.....
}
}
You need to use a custom editor. 您需要使用自定义编辑器。 The following example should get you started:
以下示例可以帮助您入门:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
/*
* The editor button that brings up the dialog.
*/
//public class TablePopupEditor extends AbstractCellEditor
public class TablePopupEditor extends DefaultCellEditor
implements TableCellEditor
{
private PopupDialog popup;
private String currentText = "";
private JButton editorComponent;
public TablePopupEditor()
{
super(new JTextField());
setClickCountToStart(1);
// Use a JButton as the editor component
editorComponent = new JButton();
editorComponent.setBackground(Color.white);
editorComponent.setBorderPainted(false);
editorComponent.setContentAreaFilled( false );
// Make sure focus goes back to the table when the dialog is closed
editorComponent.setFocusable( false );
// Set up the dialog where we do the actual editing
popup = new PopupDialog();
}
public Object getCellEditorValue()
{
return currentText;
}
public Component getTableCellEditorComponent(
JTable table, Object value, boolean isSelected, int row, int column)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
popup.setText( currentText );
// popup.setLocationRelativeTo( editorComponent );
Point p = editorComponent.getLocationOnScreen();
popup.setLocation(p.x, p.y + editorComponent.getSize().height);
popup.show();
fireEditingStopped();
}
});
currentText = value.toString();
editorComponent.setText( currentText );
return editorComponent;
}
/*
* Simple dialog containing the actual editing component
*/
class PopupDialog extends JDialog implements ActionListener
{
private JTextArea textArea;
public PopupDialog()
{
super((Frame)null, "Change Description", true);
textArea = new JTextArea(5, 20);
textArea.setLineWrap( true );
textArea.setWrapStyleWord( true );
KeyStroke keyStroke = KeyStroke.getKeyStroke("ENTER");
textArea.getInputMap().put(keyStroke, "none");
JScrollPane scrollPane = new JScrollPane( textArea );
getContentPane().add( scrollPane );
JButton cancel = new JButton("Cancel");
cancel.addActionListener( this );
JButton ok = new JButton("Ok");
ok.setPreferredSize( cancel.getPreferredSize() );
ok.addActionListener( this );
JPanel buttons = new JPanel();
buttons.add( ok );
buttons.add( cancel );
getContentPane().add(buttons, BorderLayout.SOUTH);
pack();
getRootPane().setDefaultButton( ok );
}
public void setText(String text)
{
textArea.setText( text );
}
/*
* Save the changed text before hiding the popup
*/
public void actionPerformed(ActionEvent e)
{
if ("Ok".equals( e.getActionCommand() ) )
{
currentText = textArea.getText();
}
textArea.requestFocusInWindow();
setVisible( false );
}
}
private static void createAndShowUI()
{
String[] columnNames = {"Item", "Description"};
Object[][] data =
{
{"Item 1", "Description of Item 1"},
{"Item 2", "Description of Item 2"},
{"Item 3", "Description of Item 3"}
};
JTable table = new JTable(data, columnNames);
table.getColumnModel().getColumn(1).setPreferredWidth(300);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
JScrollPane scrollPane = new JScrollPane(table);
// Use the popup editor on the second column
TablePopupEditor popupEditor = new TablePopupEditor();
table.getColumnModel().getColumn(1).setCellEditor( popupEditor );
JFrame frame = new JFrame("Popup Editor Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new JTextField(), BorderLayout.NORTH);
frame.add( scrollPane );
frame.pack();
frame.setLocationRelativeTo( null );
frame.setVisible(true);
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
It demonstrates how to use a JTextArea as an editor for a cell. 它演示了如何使用JTextArea作为单元格的编辑器。
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