Java JComboBox Item insertIntoCombo(JComboBox combo, Object item)

Description

Insert the given item into the combo box, and set it as first selected item.

License

Apache License

Parameter

Parameter	Description
combo	a parameter
item	a parameter

Declaration

public static void insertIntoCombo(JComboBox combo, Object item) 

Method Source Code

//package com.java2s;
/*// w  ww  . j av a 2 s.co m
 * Copyright 2008 Ayman Al-Sairafi ayman.alsairafi@gmail.com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License 
 *       at http://www.apache.org/licenses/LICENSE-2.0 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License.  
 */

import javax.swing.JComboBox;
import javax.swing.MutableComboBoxModel;

public class Main {
    /**
     * Insert the given item into the combo box, and set it as first selected
     * item.  If the item already exists, it is removed, so there are no
     * duplicates.
     * @param combo
     * @param item
     */
    public static void insertIntoCombo(JComboBox combo, Object item) {
        MutableComboBoxModel model = (MutableComboBoxModel) combo
                .getModel();
        if (model.getSize() == 0) {
            model.insertElementAt(item, 0);
            return;
        }

        Object o = model.getElementAt(0);
        if (o.equals(item)) {
            return;
        }
        model.removeElement(item);
        model.insertElementAt(item, 0);
        combo.setSelectedIndex(0);
    }
}

Related

1. fillCombo(JComboBox comboBox, Collection items)
2. findComboBoxItemForString(final JComboBox box, final String searchString)
3. getDataIndexFromComboBox(JComboBox cbb, String dta)
4. getItems(JComboBox box)
5. getItems(JComboBox comboBox)
6. items(JComboBox comboBox)
7. loadCombo(JComboBox cmb, List data)
8. loadInstances(JComboBox target, Class source, Class limit, Object defaultItem)
9. loadStaticItems(JComboBox target, Class source, Class limit, String defaultItem)