您可以在组合框测试运行中复制搜索，并在选择过滤器后仍然获得原始值。 您可以看到我的代码并完成数据过滤后帮助我收到的数据，超过一周的搜索但无法完成。希望你能帮忙。非常感谢你
Form.java：
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.JTextField;
public class Form implements Runnable {
private static JFrame frame;
private static DetailedComboBox combo;
private static JTextField textField;
private static DetailedComboBox comboLop;
private static JTextField textField2;
/**
* @wbp.parser.entryPoint
*/
@Override
public void run() {
// TODO Auto-generated method stub
List<List<?>> tableData = new ArrayList<List<?>>();
tableData.add(new ArrayList<String>(
Arrays.asList("0","Nam", "Phan Nam", "1")));
tableData.add(new ArrayList<String>(
Arrays.asList( "1","Long", "Dinh Hoang Long", "2")));
tableData.add(new ArrayList<String>(
Arrays.asList( "3","Luc", "Phan Cong Luc", "4")));
tableData.add(new ArrayList<String>(
Arrays.asList( "4","Hoang", "Tran Hoang", "5")));
String[] columns = new String[]{"ID","Name", "Full Name", "Capital"};
int[] widths = new int[]{0,80, 200, 100};
combo = new DetailedComboBox(columns, widths, 0);
combo.setEditable(true);
// comboNhanVien.setEditable(true);
combo.setBounds(58, 50, 154, 23);
combo.setTableData(tableData);
combo.setSelectedIndex(-1);
combo.setPopupAlignment(DetailedComboBox.Alignment.LEFT);
combo.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
showDetails();
}
});
/* combo.getEditor().getEditorComponent().addFocusListener(new FocusAdapter() {
@Override
public void focusGained(FocusEvent arg0) {
combo.showPopup();
combo.hidePopup();
}
@Override
public void focusLost(FocusEvent arg0) {
//combo.hidePopup();
}
});*/
combo.getEditor().getEditorComponent().addKeyListener(new KeyAdapter() {
@Override
public void keyReleased(KeyEvent e) {
System.out.print(e.getKeyCode());
String value= combo.getEditor().getItem().toString();
if (value.trim().length() == 0 && e.getKeyCode() != 40) {
combo.hidePopup();
// System.out.print(e.getKeyCode());
}else {
combo.showPopup();
//System.out.print("X: "+e.getKeyCode());
}
}
});
List<List<?>> tableDataLop = new ArrayList<List<?>>();
tableDataLop.add(new ArrayList<String>(
Arrays.asList("0","Class A")));
tableDataLop.add(new ArrayList<String>(
Arrays.asList("1","Class B")));
String[] columnsLop = new String[]{"ID","Class"};
int[] widthsLop = new int[]{0,100};
comboLop = new DetailedComboBox(columnsLop, widthsLop, 0);
comboLop.setEditable(true);
// comboNhanVien.setEditable(true);
comboLop.setBounds(58, 50, 154, 23);
comboLop.setTableData(tableDataLop);
comboLop.setSelectedIndex(-1);
comboLop.setPopupAlignment(DetailedComboBox.Alignment.LEFT);
comboLop.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
showDetailsLop();
}
});
comboLop.getEditor().getEditorComponent().addKeyListener(new KeyAdapter() {
@Override
public void keyReleased(KeyEvent e) {
System.out.print(e.getKeyCode());
String value= comboLop.getEditor().getItem().toString();
if (value.trim().length() == 0 && e.getKeyCode() != 40) {
comboLop.hidePopup();
// System.out.print(e.getKeyCode());
}else {
comboLop.showPopup();
//System.out.print("X: "+e.getKeyCode());
}
}
});
comboLop.setEditable(true);
comboLop.setBounds(58, 94, 154, 23);
JPanel p = new JPanel();
p.setLayout(null);
p.add(combo);
p.add(comboLop);
frame = new JFrame();
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(p, BorderLayout.CENTER);
p.add(getTextField());
p.add(getTextField2());
//frame.getContentPane().setLayout(null);
//frame.getContentPane().add(comboNhanVien);
//frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
/**
* Launch the application.
*/
/**
* Create the application.
*/
private static void showDetails()
{
List<? extends Object> rowData = combo.getSelectedRow();
textField.setText(rowData.get(1).toString());
// capital.setText(rowData.get(2).toString());
}
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Form());
}
private JTextField getTextField() {
if (textField == null) {
textField = new JTextField();
textField.setBounds(234, 52, 86, 20);
textField.setColumns(10);
}
return textField;
}
private JTextField getTextField2() {
if (textField2 == null) {
textField2 = new JTextField();
textField2.setColumns(10);
textField2.setBounds(234, 96, 86, 20);
}
return textField2;
}
private static void showDetailsLop()
{
List<? extends Object> rowData = comboLop.getSelectedRow();
textField2.setText(rowData.get(1).toString());
// capital.setText(rowData.get(2).toString());
}
}
和DetailedComboBox.java
import java.awt.Dimension;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.plaf.basic.*;
import javax.swing.plaf.metal.*;
import javax.swing.table.*;
/**
* A JComboBox that has a JTable as a drop-down instead of a JList
*/
@SuppressWarnings({ "rawtypes", "serial" })
public class DetailedComboBox extends JComboBox
{
public static enum Alignment {LEFT, RIGHT}
private List<List<? extends Object>> tableData;
private String[] columnNames;
private int[] columnWidths;
private Alignment popupAlignment = Alignment.LEFT;
/**
* Construct a TableComboBox object
*/
public DetailedComboBox(String[] colNames, int[] colWidths,
int displayColumnIndex)
{
super();
this.columnNames = colNames;
this.columnWidths = colWidths;
setUI(new TableComboBoxUI());
setEditable(false);
}
/**
* Set the type of alignment for the popup table
*/
public void setPopupAlignment(Alignment alignment)
{
popupAlignment = alignment;
}
/**
* Populate the combobox and drop-down table with the supplied data.
* If the supplied List is non-null and non-empty, it is assumed that
* the data is a List of Lists to be used for the drop-down table.
* The combobox is also populated with the column data from the
* column defined by <code>displayColumn</code>.
*/
@SuppressWarnings("unchecked")
public void setTableData(List<List<? extends Object>> tableData)
{
this.tableData = (tableData == null ?
new ArrayList<List<? extends Object>>() : tableData);
// even though the incoming data is for the table, we must also
// populate the combobox's data, so first clear the previous list.
removeAllItems();
// then load the combobox with data from the appropriate column
Iterator<List<? extends Object>> iter = this.tableData.iterator();
while (iter.hasNext())
{
List<? extends Object> rowData = iter.next();
// System.out.print(rowData.get(1));
addItem(rowData.get(1));
// addItem(rowData.get(displayColumn));
}
}
public List<? extends Object> getSelectedRow()
{
List<? extends Object> data = null;
if(tableData.get(getSelectedIndex()) != null){
data=tableData.get(getSelectedIndex());
}
System.out.println(data);
return data;
}
/**
* The handler for the combobox's components
*/
private class TableComboBoxUI extends MetalComboBoxUI
{
/**
* Create a popup component for the ComboBox
*/
@Override
protected ComboPopup createPopup()
{
return new TableComboPopup(comboBox, this);
}
/**
* Return the JList component
*/
public JList getList()
{
return listBox;
}
}
/**
* The drop-down of the combobox, which is a JTable instead of a JList.
*/
private class TableComboPopup extends BasicComboPopup
implements ListSelectionListener, ItemListener
{
/**
*
*/
private static final long serialVersionUID = 1L;
private final JTable table;
private TableComboBoxUI comboBoxUI;
private PopupTableModel tableModel;
private JScrollPane scroll;
// private JList list = new JList();
// private ListSelectionListener selectionListener;
// private ItemListener itemListener;
private void selectRow()
{
int index = comboBox.getSelectedIndex();
if (index != -1)
{
int idc=table.getRowCount();
if(idc>0){
//System.out.println("idc "+idc);
//table.setRowSelectionInterval(index, index);
//table.scrollRectToVisible(table.getCellRect(index, 0, true));
}
}
}
/**
* Construct a popup component that's a table
*/
public TableComboPopup(JComboBox combo, TableComboBoxUI ui)
{
super(combo);
this.comboBoxUI = ui;
tableModel = new PopupTableModel();
table = new JTable(tableModel);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.getTableHeader().setReorderingAllowed(false);
TableColumnModel tableColumnModel = table.getColumnModel();
tableColumnModel.setColumnSelectionAllowed(false);
for (int index = 0; index < table.getColumnCount(); index++)
{
TableColumn tableColumn = tableColumnModel.getColumn(index);
tableColumn.setPreferredWidth(columnWidths[index]);
}
table.removeColumn(table.getColumnModel().getColumn(0));
scroll = new JScrollPane(table);
scroll.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
selectionModel.addListSelectionListener(this);
combo.addItemListener(this);
table.addMouseListener(new MouseAdapter()
{
public void mousePressed(MouseEvent event)
{
// java.awt.Point p = event.getPoint();
// int row = table.rowAtPoint(p);
//int row = table.convertRowIndexToModel(table.getEditingRow());
//System.out.println("row 2: "+row);
/// comboBox.setSelectedIndex(row);
//comboBox.getEditor().setItem("Text Has Changed");
hide();
}
});
table.setBackground(UIManager.getColor("ComboBox.listBackground"));
table.setForeground(UIManager.getColor("ComboBox.listForeground"));
}
/**
* This method is overridden from BasicComboPopup
*/
@Override
public void show()
{
if (isEnabled())
{
super.removeAll();
int scrollWidth = table.getPreferredSize().width +
((Integer) UIManager.get("ScrollBar.width")).intValue() + 1;
int scrollHeight = comboBoxUI.getList().
getPreferredScrollableViewportSize().height;
scroll.setPreferredSize(new Dimension(scrollWidth, scrollHeight));
super.add(scroll);
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.removeListSelectionListener(this);
selectRow();
selectionModel.addListSelectionListener(this);
int scrollX = 0;
int scrollY = comboBox.getBounds().height;
if (popupAlignment == Alignment.RIGHT)
{
scrollX = comboBox.getBounds().width - scrollWidth;
}
show(comboBox, scrollX, scrollY);
// table.setRowSelectionInterval(0, 0);
comboBox.getEditor().getEditorComponent().addKeyListener(new KeyAdapter() {
@Override
public void keyReleased(KeyEvent e) {
String value= comboBox.getEditor().getItem().toString();
//System.out.println("value: " +value);
TableRowSorter<TableModel> rowSorter
= new TableRowSorter<>(table.getModel());
table.setRowSorter(rowSorter);
if (value.trim().length() == 0) {
rowSorter.setRowFilter(null);
table.setRowSelectionInterval(0, 0);
}else {
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)" + value,1));
int index = comboBox.getSelectedIndex();
if (index != -1)
{
int idc=table.getRowCount();
if(idc>0){
//System.out.println("idc "+idc);
//table.setRowSelectionInterval(index, index);
//table.scrollRectToVisible(table.getCellRect(index, 0, true));
}
}
}
}
});
}
}
/**
* Implemention of ListSelectionListener
*/
public void valueChanged(ListSelectionEvent event)
{
int index = table.getSelectedRow();
int row = table.convertRowIndexToView(table.getEditingRow());
System.out.println("B "+row);
if (index != -1)
{
//System.out.print("B "+index);
comboBox.setSelectedIndex(table.getSelectedRow());
}
}
@Override
public void itemStateChanged(ItemEvent arg0) {
// TODO Auto-generated method stub
}
}
/**
* A model for the popup table's data
*/
private class PopupTableModel extends AbstractTableModel
{
/**
* Return the # of columns in the drop-down table
*/
public int getColumnCount()
{
return columnNames.length;
}
/**
* Return the # of rows in the drop-down table
*/
public int getRowCount()
{
return tableData == null ? 0 : tableData.size();
}
/**
* Determine the value for a given cell
*/
public Object getValueAt(int row, int col)
{
if (tableData == null || tableData.size() == 0)
{
return "";
}
return tableData.get(row).get(col);
}
/**
* All cells in the drop-down table are uneditable
*/
@Override
public boolean isCellEditable(int row, int col)
{
return false;
}
/**
* Pull the column names out of the tableInfo object for the header
*/
@Override
public String getColumnName(int column)
{
String columnName = null;
if (column >= 0 && column < columnNames.length)
{
columnName = columnNames[column].toString();
}
return (columnName == null) ? super.getColumnName(column) : columnName;
}
}
}
答案 0 :(得分：1)
您需要了解组合框，表和模型之间的模型/视图索引关系。
您的组合框将始终包含所有条目，因此其索引等同于模型索引。
表可能已过滤或未过滤，因此您需要将其索引转换为模型索引，以便设置组合框索引。
如果我了解您尝试执行的操作，那么这是我对您的valueChanged()方法所做的更改：
public void valueChanged(ListSelectionEvent event)
{
int index = table.getSelectedRow();
if (index != -1)
{
int row = table.convertRowIndexToModel(index);
comboBox.setSelectedIndex(row);
}
}