jcombobox

My code is quite simple actually. I saw a simple and similar code was from this article . At first, I have 1 combobox . I have a listener on it called itemStateChanged() . My purpose to add into this listener is that; " to execute some code when user click (select) an item from its dropbox ". Cmb_ItemCategory = new javax.swing.JComboBox(); Cmb_ItemCategory.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Loading..." })); Cmb_ItemCategory.addItemListener(new java.awt.event.ItemListener() { public void itemStateChanged(java.awt.event.ItemEvent evt) { Cmb_ItemCategoryItemStateChanged

This is a fairly common problem, and the solution I've used is similar to what I searched and found later. One implements a ListCellRenderer with a JLabel that enables or disables itself based on the current selected index: public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) { setText(value.toString()); UIDefaults defaults = UIManager.getDefaults(); Color fc; if (index == 1) { setEnabled(false); fc = defaults.getColor("Label.disabledForeground"); setFocusable(false); } else { // fc = defaults.getColor("Label.foreground");

I have a JComboBox that contains three Items {"Personel", "Magasinier", "Fournisseur"} . I want this JComboBox to display the value "Choisir une option :" , which is a non-selectable value. I tried this code after initComponents(); : this.jComboBox1.setSelectedItem("Choisir une option :"); but it doesn't work. How can I do that ? You could override the selection code in your JComboBox model, with code such as the following SSCCE: public class JComboExample { private static JFrame frame = new JFrame(); private static final String NOT_SELECTABLE_OPTION = " - Select an Option - "; private static

I have read through the majority of the JTable/JComboBox responses to other questions of this ilk, but haven't yet found a solution to my problem. I have created a table that has JComboBox TableHeader elements. None of the JComboBox elements will open to display a list of items. How do I get the item lists for the individual JComboBox elements to display? Please note that a distinguishing element of this question is that the JComboBox is in the TableHeader, not embedded within a JTable cell. Any help is appreciated. SSCE import java.awt.Component; import java.awt.Dimension; import java.util

I have editable JComboBox and wish to add values to it from its input,e.s when I typing something in JComboBox and press enter I want that text appear in JComboBox list : public class Program extends JFrame implements ActionListener { private JComboBox box; public static void main(String[] args) { new Program().setVisible(true); } public Program() { super("Text DEMO"); setSize(300, 300); setLayout(new FlowLayout()); Container cont = getContentPane(); box = new JComboBox(new String[] { "First", "Second", "..." }); box.setEditable(true); box.addActionListener(this); cont.add(box); } @Override

In Java Swing, what's the best way for a JList and a JComboBox to be synchronized in terms of the data, i.e., to have the same list of items at any given point of time? Basically, if I add items to (or remove items from) one, the other should reflect the change automatically. I've tried doing the following, but it doesn't seem to work: JList list = new JList(); JComboBox comboBox = new JComboBox(); DefaultListModel listModel = new DefaultListModel(); // add items to listModel... list.setModel(listModel); comboBox.setModel(new DefaultComboBoxModel(listModel.toArray())); Your models - the