如何防止正在编辑的单元格？
我正在使用DefaultTable模型
package TableModels;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.table.DefaultTableModel;
/**
*
* @author DELL
*/
public class TableModels extends javax.swing.JFrame {
/** Creates new form TableModels */
DefaultTableModel dtm;
String name;
String age;
String gender;
public TableModels()
{
initTables();
initComponents();
initListener();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
table = new javax.swing.JTable();
lbl_name = new javax.swing.JLabel();
lbl_age = new javax.swing.JLabel();
lbl_gender = new javax.swing.JLabel();
txt_name = new javax.swing.JTextField();
txt_age = new javax.swing.JTextField();
txt_gender = new javax.swing.JTextField();
btn_add = new javax.swing.JButton();
btn_remove = new javax.swing.JButton();
btn_update = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
table.setModel(dtm);
table.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
tableMouseClicked(evt);
}
});
jScrollPane1.setViewportView(table);
lbl_name.setText("Name");
lbl_age.setText("Age");
lbl_gender.setText("Gender");
btn_add.setText("Add");
btn_remove.setText("Remove");
btn_update.setText("Update");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(37, 37, 37)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lbl_name)
.addComponent(lbl_age)
.addComponent(lbl_gender))
.addGap(58, 58, 58)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(txt_name, javax.swing.GroupLayout.DEFAULT_SIZE, 191, Short.MAX_VALUE)
.addComponent(txt_age)
.addComponent(txt_gender)
.addGroup(layout.createSequentialGroup()
.addComponent(btn_add)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(btn_update)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(btn_remove))))
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 375, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(15, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(25, 25, 25)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(lbl_name)
.addComponent(txt_name, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(lbl_age)
.addComponent(txt_age, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(lbl_gender)
.addComponent(txt_gender, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btn_add)
.addComponent(btn_remove)
.addComponent(btn_update))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 18, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 113, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
pack();
}// </editor-fold>
private void tableMouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
txt_name.setText(dtm.getValueAt(table.getSelectedRow(), 0).toString());
txt_age.setText(dtm.getValueAt(table.getSelectedRow(), 1).toString());
txt_gender.setText(dtm.getValueAt(table.getSelectedRow(), 2).toString());
}
/**
* @param args the command line arguments
*/
public void initTables()
{
dtm=new DefaultTableModel(0,0);
dtm.addColumn("Name");
dtm.addColumn("Age");
dtm.addColumn("Gender");
}
public void initListener()
{
ActionListener al=new ActionListener()
{
public void actionPerformed(ActionEvent ae)
{
if(ae.getSource()==btn_add)
{
name=txt_name.getText();
age=txt_age.getText();
gender=txt_gender.getText();
Object data[]=new Object[3];
data[0]=name;
data[1]=age;
data[2]=gender;
dtm.addRow(data);
}
if(ae.getSource()==btn_update)
{
name=txt_name.getText();
age=txt_age.getText();
gender=txt_gender.getText();
Object data[]=new Object[3];
data[0]=name;
data[1]=age;
data[2]=gender;
dtm.setValueAt(data[0], table.getSelectedRow(), 0);
dtm.setValueAt(data[1], table.getSelectedRow(), 1);
dtm.setValueAt(data[2], table.getSelectedRow(), 2);
}
if(ae.getSource()==btn_remove)
{
dtm.removeRow(table.getSelectedRow());
}
}
};
btn_add.addActionListener(al);
btn_update.addActionListener(al);
btn_remove.addActionListener(al);
}
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new TableModels().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton btn_add;
private javax.swing.JButton btn_remove;
private javax.swing.JButton btn_update;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JLabel lbl_age;
private javax.swing.JLabel lbl_gender;
private javax.swing.JLabel lbl_name;
private javax.swing.JTable table;
private javax.swing.JTextField txt_age;
private javax.swing.JTextField txt_gender;
private javax.swing.JTextField txt_name;
// End of variables declaration
}
Q1.i看了很多评论
public boolean isCellEditable ( int row, int column )
{
return editable;
}
但它如何在netbeans中使用它？
Q2.Another review saw
table.setEnabled(false);
但是使用此设置会禁用整行，不会单独选择行吗？
答案 0 :(得分：2)
在initTables方法中，当您创建DefaultTableModel的实例时，只需创建一个匿名类并覆盖isCellEditable
public void initTables() {
dtm=new DefaultTableModel(0,0) {
@Override
public boolean isCellEditable(int row, int col) {
return false; // every cell is not editable
}
};
dtm.addColumn("Name");
dtm.addColumn("Age");
dtm.addColumn("Gender");
}