How to use DefaultCellEditor class?

[Sonam Goenka]

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Hi friend,

I have one query to discuss with you and which is related to the DefaultCellEditor class. In one of my project I will need to use DefaultCellEditor class of java. But I don't anything about this java class. I searched lost of various websites for 'DefaultCellEditor class, but didn't get enough details. If you posses knowledge about DefaultCellEditor class, then please let aware about the same. I would greatly appreciate your any help over DefaultCellEditor class .

[MindSpace]

Hi,

A DefaultCellEditor class is used as a default editor for table and tree cells. A 'javax.swing.AbstractCellEditor' is nothing but the parent package for the DefaultCellEditor class of java. This java class implements four interfaces namely as TableCellEditor, TreeCellEditor, CellEditor, Serializable. A DefaultCellEditor class of java language is entends the class known as 'classAbstractCellEditor'

[Modifier]

Following are some essential methods of the DefaultCellEditor class:

• shouldSelectCell(EventObject anEvnt)
• setClickCountToStart(int cnt)
• isCellEditable(EventObject anEvnt)
• getTreeCellEditorComponent(JTree tree, Object val, boolean bl, boolean expanded, boolean leaf, int rw)
• getTableCellEditorComponent(JTable table, Object val, boolean bl, int row1, int clm)

[Praetor]

Hi friend,

If you want to know about the use of DefaultCellEditor class, then please refer following java code:

import javax.swing.DefaultCellEditor;
import javax.swing.tree01.TreeCellEditor;

public class DefaultCellEditorMain {

  public static void main(final String argvs[]) {
    JFrame frame002 = new JFrame("Editable Tree");
    frame002.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Object array[] = {Boolean.TRUE, Boolean.FALSE, "Hello"};
    JTree tree01 = new JTree(array);
    tree01.setEditable(true);
    tree01.setRootVisible(true);
    JCheckBox checkBox1 = new JCheckBox();
    TreeCellEditor editor1 = new DefaultCellEditor(checkBox1);
    tree01.setCellEditor(editor1);

    JScrollPane scrollPane1 = new JScrollPane(tree01);
    frame002.add(scrollPane1, BorderLayout.CENTER);
    frame002.setSize(200, 150);
    frame002.setVisible(true);
  }
}

[Katty]

Below I have given some constructors of DefaultCellEditor class along with their parameters:

1. DefaultCellEditor(JComboBox cmbBox1)
2. DefaultCellEditor(JTextField txtField1)
3. DefaultCellEditor(JCheckBox chkBox1)
4. getClickCountToStart()

[kelfro]

Hi,

Following code of java will demonstrate you the use of DefaultCellEditor(JComboBox com) method of DefaultCellEditor class:

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.tree.TreeCellEditor;

public class DefaultED {

  public static void main(final String args[]) {
    JFrame HBP = new JFrame("Editable Tree");
    HBP.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JTree tree = new JTree();
    tree.setEditable(true);

    DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
    String elements[] = { "A", "B", "C", "D" };
    JComboBox comboBoxF = new JComboBox(elements);
    comboBoxF.setEditable(true);
    TreeCellEditor comboEditorF = new DefaultCellEditor(comboBoxF);
    TreeCellEditor editorF = new DefaultTreeCellEditor(tree, renderer, comboEditorF);
    tree.setCellEditor(editorF);
    JScrollPane scrollPane1 = new JScrollPane(tree);
    HBP.add(scrollPane1, BorderLayout.CENTER);
    HBP.setSize(300, 100);
    HBP.setVisible(true);
  }
}