做赚钱的网站有哪些,徐州商城建站系统,彬县网约车,服务器租用收费标准为什么80%的码农都做不了架构师#xff1f; reference#xff1a; http://tips4java.wordpress.com/2008/12/12/table-stop-editing/ 当JTable的单元格处于编辑状态时#xff0c;如果用户触发以下事件#xff0c;表格就会退出编辑状态#xff0c;进而调用T… 为什么80%的码农都做不了架构师 reference http://tips4java.wordpress.com/2008/12/12/table-stop-editing/ 当JTable的单元格处于编辑状态时如果用户触发以下事件表格就会退出编辑状态进而调用TableModel的 public void setValueAt(Object aValue, int row, int column) 1. 回车确认 2. 使用方向键或tab移动到别的单元格 3. 鼠标点击别的单元格 但是如果用户点击了表格之外的控件表格中单元格还是处于编辑状态此时如果点击的是“保存”按钮由于单元格并没有接受用户的输入导致当前编辑的单元格的值为null用户输入的数据没有保存。 同时由于表格中的所有单元格是共用一个CellEditor当用户新建一行时通常会让光标移动到新建的行的某一个单元格此时原来正在编辑的单元格就会替换到新增加的行中而之前单元格的输入的内容没有保存。 因此在触发其他操作之前最好能够取消表格正在编辑的状态。 方法1. JTable table new JTable(...); table.putClientProperty(terminateEditOnFocusLost, Boolean.TRUE); 当其他控件获取焦点后表格会停止编辑但是点击最小化时没有效果。 方法2. if (table.isEditing()) table.getCellEditor().stopCellEditing(); 在需要取消表格编辑状态的按钮等控件的事件响应中根据具体情况来取消表格的编辑状态。 原文说点击表格的表头使用第一种方法表格不会退出编辑状态但是经测试也是会退出编辑状态的。 表格Model简单继承DefaultTableModel package com.aquar.table;import com.aquar.data.Movie;import javax.swing.table.DefaultTableModel;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Vector;/*** Created with IntelliJ IDEA.* User: Edison* Date: 13-8-16* Time: 下午10:46* A table model for movies.*/
public class TableModelMovie extends DefaultTableModel {private static final int COL_NAME 0;private static final int COL_PREMIERE COL_NAME 1;private static final int COL_DIRCTOR COL_PREMIERE 1;public TableModelMovie() {init();mockData();}private void init() {columnIdentifiers.add(Name);columnIdentifiers.add(Premiere);columnIdentifiers.add(Director);}/*** make some movies.*/private void mockData() {ListMovie list new ArrayList();list.add(new Movie(The Shawshank Redemption, new Date(), Frank Darabont));list.add(new Movie(The Godfather, new Date(), Francis Ford Coppola));list.add(new Movie(Pulp Fiction, new Date(), Quentin Tarantino));list.add(new Movie(The Dark Knight, new Date(), Frank Darabont));fillTableData(list);}private void fillTableData(ListMovie movies) {dataVector.clear();for (Movie movie : movies) {Vector rowVector new Vector();rowVector.add(movie);dataVector.add(rowVector);}fireTableDataChanged();}Overridepublic Object getValueAt(int row, int column) {Object ret ;if (row dataVector.size()) {return ret;}// Get one row data.Vector rowData (Vector) dataVector.elementAt(row);Movie movie (Movie) rowData.elementAt(0);switch (column) {case COL_NAME:ret movie.getName();break;case COL_PREMIERE:ret movie.getPremiere().toString();break;case COL_DIRCTOR:ret movie.getDirector();break;default:break;}return ret;}Overridepublic void setValueAt(Object aValue, int row, int column) {if (row dataVector.size()) {return ;}// Get one row data.Vector rowData (Vector) dataVector.elementAt(row);Movie movie (Movie) rowData.elementAt(0);switch (column) {case COL_NAME:movie.setName(aValue.toString());break;case COL_DIRCTOR:movie.setDirector(aValue.toString());break;default:break;}}Overridepublic boolean isCellEditable(int row, int column) {return column COL_NAME || column COL_DIRCTOR;}
} 数据对象 package com.aquar.data;import java.util.Date;
import java.util.List;/*** Created with IntelliJ IDEA.* User: Edison* Date: 13-8-16* Time: 下午10:30* To change this template use File | Settings | File Templates.*/
public class Movie {private String name;private Date premiere;private String publisher;private String director;private ListString starrings;public Movie(String movName, Date movPremiere, String movDirector) {this.name movName;this.premiere movPremiere;this.director movDirector;}public String getName() {return name;}public Date getPremiere() {return premiere;}public String getPublisher() {return publisher;}public String getDirector() {return director;}public ListString getStarrings() {return starrings;}public void setName(String name) {this.name name;}public void setPremiere(Date premiere) {this.premiere premiere;}public void setPublisher(String publisher) {this.publisher publisher;}public void setDirector(String director) {this.director director;}public void setStarrings(ListString starrings) {this.starrings starrings;}
} 程序入口和UI package com.aquar.main;import com.aquar.table.TableModelMovie;import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;/*** Created with IntelliJ IDEA.* User: Edison* Date: 13-7-14* Time: 下午11:55* To change this template use File | Settings | File Templates.*/
public class MainFrame {private final int width 800;private final int height 600;private JFrame mFrame;private JTable movTable;public MainFrame() {mFrame new JFrame();mFrame.setLayout(new BorderLayout(0, 0));mFrame.setSize(new Dimension(width, height));mFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);initUI();mFrame.setVisible(true);}private void initUI() {TableModelMovie modelMovie new TableModelMovie();movTable new JTable(modelMovie);movTable.setRowHeight(20);movTable.putClientProperty(terminateEditOnFocusLost, Boolean.TRUE);JScrollPane scrollPane new JScrollPane(movTable);mFrame.add(scrollPane, BorderLayout.CENTER);JPanel footPanel new JPanel();JButton newBtn new JButton(New);newBtn.addActionListener(new ActionListener() {Overridepublic void actionPerformed(ActionEvent e) {
// if (movTable.isEditing()) {
// movTable.getCellEditor().stopCellEditing();
// }}});footPanel.add(newBtn);mFrame.add(footPanel, BorderLayout.SOUTH);}public void show() {}public static void main(String[] args) {new MainFrame();}
} 转载于:https://my.oschina.net/aquar/blog/153242
