I have made a combobox as cell editor of a column. I want when i create a new row the cell in that column should not have the combobox as the cell editor and should retain JTextField as the cell editor. Here is what i have done so far.
addRow(mainWindow.salesTable);
final TableColumn items = mainWindow.salesTable.getColumnModel().getColumn(0);
final JTextField tfield = new JTextField();
DefaultCellEditor editorqty = new DefaultCellEditor(tfield);
items.setCellEditor(editorqty);
private static void addRow(JTable table) {
DefaultTableModel model = (DefaultTableModel) table.getModel();
Vector row = new Vector();
row.add("");
row.add("");
row.add("");
row.add("");
row.add("");
row.add("");
row.add("");
row.add("");
model.addRow(row);
}
Overriding the getCellEditor(...) method of JTble is one approach:
import java.awt.*;
import java.util.List;
import java.util.ArrayList;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.table.*;
public class TableComboBoxByRow extends JPanel
{
List<String[]> editorData = new ArrayList<String[]>(3);
public TableComboBoxByRow()
{
setLayout( new BorderLayout() );
// Create the editorData to be used for each row
editorData.add( new String[]{ "Red", "Blue", "Green" } );
editorData.add( new String[]{ "Circle", "Square", "Triangle" } );
editorData.add( new String[]{ "Apple", "Orange", "Banana" } );
// 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)
{
JComboBox<String> comboBox1 = new JComboBox<String>( editorData.get(row));
return new DefaultCellEditor( comboBox1 );
}
else
return super.getCellEditor(row, column);
}
};
JScrollPane scrollPane = new JScrollPane( table );
add( scrollPane );
}
private static void createAndShowUI()
{
JFrame frame = new JFrame("Table Combo Box by Row");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add( new TableComboBoxByRow() );
frame.setSize(200, 200);
frame.setLocationByPlatform( true );
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
Related
I've created a custom combo box that displays possible changes in state for orders. I did it with the help of this post, using MadProgrammer's code as base line:
Changing Dropdown content in a JTable Column in Swing
It worked, partially.
Even though after clicking the combo box is activated and it shows the proper state options for the user, it has the following problem.
After the user selects the option, the combo box doesn't set the selected value in the table. However if the user changes the combo box of another order, the change does take place. It also works if you click other part of the selected row that isn't the combo box cell.
I suspect that this is because the cell only changes to be a combo box when is clicked, so it doesn't behave like a combo box does. Yet I'm a bit lost in how to fix it.
Any help is greatly appreciated.
Here are the relevant parts of my code:
EDIT: Following Andrew Thompson's advice, i replaced the code with a reproducible example. I'll be working on MadProgrammer's suggested solution and update it later.
package test;
import java.awt.Component;
import java.awt.EventQueue;
import java.util.ArrayList;
import java.util.List;
import javax.swing.AbstractCellEditor;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellEditor;
public class TestCellEditor {
public static void main(String[] args) {
new TestCellEditor();
}
public TestCellEditor() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
List<String> values = new ArrayList<>(5);
values.add("B");
values.add("A");
values.add("O");
values.add("G");
values.add("P");
ComboBoxTableCellEditor editor = new ComboBoxTableCellEditor(values);
DefaultTableModel model = new DefaultTableModel(new Object[]{"Status"}, 5);
JTable table = new JTable(model);
table.getColumnModel().getColumn(0).setCellEditor(editor);
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new JScrollPane(table));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class ComboBoxTableCellEditor extends AbstractCellEditor implements TableCellEditor {
private JComboBox editor;
private List<String> masterValues;
public ComboBoxTableCellEditor(List<String> masterValues) {
this.editor = new JComboBox();
this.masterValues = masterValues;
}
#Override
public Object getCellEditorValue() {
return editor.getSelectedItem();
}
#Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
DefaultComboBoxModel model = new DefaultComboBoxModel(masterValues.toArray(new String[masterValues.size()]));
for (int index = 0; index < table.getRowCount(); index++) {
}
editor.setModel(model);
editor.setSelectedItem(value);
return editor;
}
}
}
This approach will only override the getTableCellEditorComponent(...) method of the DefaultCellEditor to reset the model of the combo box based on a value in the current row that is being edited.
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import javax.swing.table.*;
public class StateCellEditor extends DefaultCellEditor
{
private int lookupColumn;
private HashMap<Object, DefaultComboBoxModel<?>> map;
public StateCellEditor(JComboBox<?> comboBox, int lookColumn, HashMap<Object, DefaultComboBoxModel<?>> map)
{
super(comboBox);
this.lookupColumn = lookupColumn;
this.map = map;
}
#Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column)
{
Component c = super.getTableCellEditorComponent(table, value, isSelected, row, column);
JComboBox<?> comboBox = (JComboBox<?>)c;
Object lookup = table.getModel().getValueAt(row, lookupColumn);
DefaultComboBoxModel model = map.get( lookup );
comboBox.setModel( model );
return comboBox;
}
private static void createAndShowUI()
{
HashMap<Object, DefaultComboBoxModel<?>> map = new HashMap<>();
map.put("Color", new DefaultComboBoxModel<Object>( new String[]{ "Red", "Blue", "Green" } ));
map.put("Shape", new DefaultComboBoxModel<Object>( new String[]{ "Circle", "Square", "Triangle" } ));
map.put("Fruit", new DefaultComboBoxModel<Object>( new String[]{ "Apple", "Orange", "Banana" } ));
JPanel panel = new JPanel( new BorderLayout() );
panel.setLayout( new BorderLayout() );
// Create the table with default data
Object[][] data =
{
{"Color", "Red"},
{"Shape", "Square"},
{"Fruit", "Banana"}
};
String[] columnNames = {"Type","Value"};
DefaultTableModel model = new DefaultTableModel(data, columnNames);
JTable table = new JTable(model);
DefaultCellEditor dce = new StateCellEditor(new JComboBox<Object>(), 0, map);
table.getColumnModel().getColumn(1).setCellEditor(dce);
JScrollPane scrollPane = new JScrollPane( table );
panel.add( scrollPane );
JFrame frame = new JFrame("Table Combo Box by Row");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(panel, BorderLayout.CENTER);
frame.setSize(200, 200);
frame.setLocationByPlatform( true );
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowUI();
}
});
}
}
Following the suggestion of #camickr i managed to implement an easier solution.
I put this on the method that populates the table:
table.getColumnModel().getColumn(5).setCellEditor(getCellEditor(status));
public List<TableCellEditor> TableComboBoxByRow(){
// Create the editors to be used for each row
List<TableCellEditor> editors = new ArrayList<TableCellEditor>(3);
String[] items1 = { "I", "C", "F" };
JComboBox comboBox1 = new JComboBox( items1 );
DefaultCellEditor dce1 = new DefaultCellEditor( comboBox1 );
editors.add( dce1 );
String[] items2 = { "E" };
JComboBox comboBox2 = new JComboBox( items2 );
DefaultCellEditor dce2 = new DefaultCellEditor( comboBox2 );
editors.add( dce2 );
String[] items3 = { "ET" };
JComboBox comboBox3 = new JComboBox( items3 );
DefaultCellEditor dce3 = new DefaultCellEditor( comboBox3 );
editors.add( dce3 );
String[] items4 = { "F" };
JComboBox comboBox4 = new JComboBox( items4 );
DefaultCellEditor dce4 = new DefaultCellEditor( comboBox4 );
editors.add( dce4 );
return editors;
}
public TableCellEditor getCellEditor(String status)
{
if(estado.equals("I") || estado.equals("C")){
return TableComboBoxByRow().get(0);
}
else if(estado.equals("E"))
{
return TableComboBoxByRow().get(1);}
else if(estado.equals("ET"))
{
return TableComboBoxByRow().get(2);
}else{
return TableComboBoxByRow().get(3);
}
}
Thank you so much!
public static void table2() {
Object num[] = new Object[1];
for (int q = 0; q < MyDto.userList.size(); q++) {
try {
//ImageIcon i2 = new ImageIcon(new ImageIcon(MyDto.userList.get(q).getMyImg()).getImage()
// .getScaledInstance(150, 120, Image.SCALE_SMOOTH));
ImageIcon i2 = new ImageIcon("/Users/junseok/Desktop/1.png");
JLabel lbImage1 = new JLabel(i2);
lbImage1.setIcon(i2);
num[0] = lbImage1;
model2.addRow(num);
System.out.println(num[0].toString());
} catch (Exception e) {
e.printStackTrace();
}
}
}
why doesnt show image? why write only toString()??
why write only toString()??
The default renderer just invokes the toString() method of the object in the TableModel.
why doesnt show image?
You need to add an Icon to the TableModel (not a JLabel). Then you need to tell the table the Icon is stored in the column so the table can choose the appropriate renderer to paint the Icon.
This is done by overriding the getColumnClass(...) method of the TableModel:
import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableIcon extends JPanel
{
public TableIcon()
{
Icon aboutIcon = new ImageIcon("about16.gif");
Icon addIcon = new ImageIcon("add16.gif");
Icon copyIcon = new ImageIcon("copy16.gif");
String[] columnNames = {"Picture", "Description"};
Object[][] data =
{
{aboutIcon, "About"},
{addIcon, "Add"},
{copyIcon, "Copy"},
};
DefaultTableModel model = new DefaultTableModel(data, columnNames)
{
// Returning the Class of each column will allow different
// renderers to be used based on Class
#Override
public Class getColumnClass(int column)
{
return getValueAt(0, column).getClass();
}
};
JTable table = new JTable( model );
table.setPreferredScrollableViewportSize(table.getPreferredSize());
JScrollPane scrollPane = new JScrollPane( table );
add( scrollPane );
}
private static void createAndShowGUI()
{
JFrame frame = new JFrame("Table Icon");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TableIcon());
frame.setLocationByPlatform( true );
frame.pack();
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}
I have a JTable that includes items from an ArrayList, however whenever I try to remove the contents of deleted row from the ArrayList I get an IndexOutOfBoundsException depending on the amount of rows I wanted to delete and their location. How would I go about solving this issue?
Runnable Code: http://pastebin.com/Nnrnxzdg
remove.addActionListener( e -> {
int k = 0;
int[] rows = table.getSelectedRows();
TableModel tm= table.getModel();
while(rows.length>0)
{
while(k<rows.length)
{
al.remove(table.getSelectedRow() + k);
k++;
}
((DefaultTableModel)tm).removeRow(table.convertRowIndexToModel(rows[0]));
rows = table.getSelectedRows();
}
table.clearSelection();
});
Basically, the moment you remove a row, all the indices change. So what you need to do, is make a copy of all the selected rows, but NOT the index, but the actual row value...
JTable table = getTable();
if (table.getSelectedRowCount() > 0) {
List<Vector> selectedRows = new ArrayList<>(25);
DefaultTableModel model = getModel();
Vector rowData = model.getDataVector();
for (int row : table.getSelectedRows()) {
int modelRow = table.convertRowIndexToModel(row);
Vector rowValue = (Vector) rowData.get(modelRow);
selectedRows.add(rowValue);
}
Now with this, you can calculate the indexOf any given object with the model and remove it...
for (Vector rowValue : selectedRows) {
int rowIndex = rowData.indexOf(rowValue);
model.removeRow(rowIndex);
}
}
without caring what the index of the value was.
The indexes change if you remove the rows from the start of the model.
One solution is to remove one row at a time, ten all the selected indexes are reset so you are always removing the proper index:
Here is an example showing how you might do this for a JList and a JTable:
import java.awt.*;
import java.awt.event.*;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.swing.*;
import javax.swing.table.*;
public class ItemDeletion extends JPanel
{
private JList<String> list;
private JTable table;
public ItemDeletion()
{
setLayout( new BorderLayout(5, 5) );
String[] items =
{
"One",
"Two",
"Three",
"Four",
"Five",
"Six",
"Seven",
"Eight",
"Nine",
"Ten"
};
// Add the list
DefaultListModel<String> listModel = new DefaultListModel<String>();
for (String item: items)
listModel.addElement( item );
list = new JList<String>( listModel );
JButton listDelete = new JButton( "Delete From List" );
listDelete.addActionListener( new ActionListener()
{
#Override
public void actionPerformed(ActionEvent e)
{
DefaultListModel model = (DefaultListModel)list.getModel();
int row = list.getSelectedIndex();
while (row != -1)
{
model.removeElementAt( row );
row = list.getSelectedIndex();
}
}
});
JPanel listPanel = new JPanel( new BorderLayout(5, 5) );
listPanel.add(new JScrollPane( list ), BorderLayout.CENTER);
listPanel.add(listDelete, BorderLayout.PAGE_END);
// Add the table
DefaultTableModel tableModel = new DefaultTableModel(0, 1);
List<String> tableItems = Arrays.asList( items );
Collections.shuffle( tableItems );
for (String item: tableItems)
{
System.out.println( item );
tableModel.addRow( new String[]{item} );
}
table = new JTable( tableModel );
table.setAutoCreateRowSorter(true);
((DefaultRowSorter)table.getRowSorter()).toggleSortOrder(0);
JButton tableDelete = new JButton( "Delete From Table" );
tableDelete.addActionListener( new ActionListener()
{
#Override
public void actionPerformed(ActionEvent e)
{
DefaultTableModel model = (DefaultTableModel)table.getModel();
int row = table.getSelectedRow();
while (row != -1)
{
int modelRow = table.convertRowIndexToModel( row );
model.removeRow( modelRow );
row = table.getSelectedRow();
}
}
});
JPanel tablePanel = new JPanel( new BorderLayout(5, 5) );
tablePanel.add(new JScrollPane( table ), BorderLayout.CENTER);
tablePanel.add(tableDelete, BorderLayout.PAGE_END);
add(listPanel, BorderLayout.LINE_START);
add(tablePanel, BorderLayout.LINE_END);
}
private static void createAndShowGUI()
{
JFrame frame = new JFrame("Multiple Item Deletion");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new ItemDeletion(), BorderLayout.NORTH);
frame.setLocationByPlatform( true );
frame.pack();
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}
I have written this simple program:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
public class JcomboboxJtableDemo extends JPanel
implements ActionListener {
private DefaultTableModel tableModel;
JTable table = new JTable (tableModel);
private JScrollPane scrollpaneTable = new JScrollPane( table );
private JPanel PaneBottoniTabella = new JPanel( );
public JcomboboxJtableDemo() {
super(new BorderLayout());
String[] petStrings = { "Bird", "Cat", "Dog", "Rabbit", "Pig" };
JComboBox comboBox = new JComboBox(petStrings);
comboBox.setSelectedIndex(4);
tableModel = CreateTableModel();
tableModel.insertRow( 0, new Object[] {"Header col1", ""} );
tableModel.insertRow( 0, new Object[] {petStrings[0], ""} );
tableModel.insertRow( 0, new Object[] {petStrings[1], ""} );
tableModel.insertRow( 0, new Object[] {petStrings[2], ""} );
tableModel.insertRow( 0, new Object[] {petStrings[3], ""} );
tableModel.setValueAt("Header col2", 0, 1);
DefaultCellEditor editor = new DefaultCellEditor(comboBox);
table.getColumnModel().getColumn(0).setCellEditor(editor);
table.getColumnModel().getColumn(1).setCellEditor(editor);
//Lay out the demo.
add(comboBox, BorderLayout.PAGE_START);
add(table, BorderLayout.PAGE_END);
setBorder(BorderFactory.createEmptyBorder(20,20,20,20));
}
private final DefaultTableModel CreateTableModel () {
DefaultTableModel modello = new DefaultTableModel( new Object[] { "Col1","Col2" }, 0 ) {
#Override
public boolean isCellEditable(int row, int column) {
return true;
}
};
table.setModel(modello);
return modello;
}
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("ComboBoxDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//Create and set up the content pane.
JComponent newContentPane = new JcomboboxJtableDemo();
newContentPane.setOpaque(true); //content panes must be opaque
frame.setContentPane(newContentPane);
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
}
I you try to run it you will see that there is a problem in showing correctly the JComboBox components in the second column, in the first column the are correctly shown and you can see each selected item as set in the code, instead in the second column there are some problems: none on the relative cell.
Could you tell me why? How can I solve the problem?
Thanks
You're using the same JComboBox component for both ColumnModel columns which in turn share the same ComboBoxModel. Any change in the selected item from one column will be reflected in the other column. Create a second combobox
JComboBox comboBox2 = new JComboBox(petStrings);
...
table.getColumnModel().getColumn(1).setCellEditor(editor2);
so that any changes can occur independently in either column.
I am trying to add unique JComboBoxes to a column in a JTable. I know it is possible to add a JComboBox to an entire column using
TableColumn col = table.getColumnModel().getColumn(columnNumber);
col.setCellEditor(new MyComboBoxEditor(values));
but I need each JComboBox to be different and have different Strings inside it. Any ideas?
Override the getCellEditor(...) method. For example;
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);
}
}
Try this:
...
final Object[] obj = {"test1", "test2", "test3"};
JTable jTable = new JTable();
TableColumn column = jTable.getColumnModel().getColumn(1);
column.setCellEditor(new AutoCompletionComboBoxEditor(obj));
...
public static class AutoCompletionComboBoxEditor extends AbstractCellEditor implements TableCellEditor {
JComboBox cbx;
public AutoCompletionComboBoxEditor(Object[] items) {
cbx = new JComboBox(items);
}
public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column) {
return cbx;
}
public Object getCellEditorValue() {
return cbx.getSelectedItem();
}
}
try tell me the effect :)
-Saligh