Java 使用JTable+错误显示数据;focusLost()
当从多个表中选择任何行时,我希望在文本框中正确显示数据Java 使用JTable+错误显示数据;focusLost(),java,swing,jtable,jpopupmenu,focuslistener,Java,Swing,Jtable,Jpopupmenu,Focuslistener,当从多个表中选择任何行时,我希望在文本框中正确显示数据 当我右键单击表1的任何一行时,我会得到表1:1。如果我点击表2的任何一行,我也会得到table1:1(但应该是table2:1) 当我左键单击表1或表2,然后右键单击时,我没有得到任何结果。 import java.awt.BorderLayout; import java.awt.EventQueue; import java.awt.Point; import javax.swing.JFrame; import javax.swin
- 当我右键单击表1的任何一行时,我会得到
。如果我点击表2的任何一行,我也会得到表1:1
(但应该是table1:1
)table2:1
- 当我左键单击表1或表2,然后右键单击时,我没有得到任何结果。
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Point;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JMenuItem;
import javax.swing.JPopupMenu;
import javax.swing.JTextField;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class FocusTable extends JFrame {
private JPanel contentPane;
private JTextField textField; //Show selected row data here
private JTable table1;
private JTable table2;
private JTable table3;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
FocusTable frame = new FocusTable();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public FocusTable() {
setTitle("Test Focus Lost Table");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
contentPane.setLayout(new BorderLayout(0, 0));
setContentPane(contentPane);
textField = new JTextField();
contentPane.add(textField, BorderLayout.SOUTH);
textField.setColumns(10);
JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
contentPane.add(tabbedPane, BorderLayout.CENTER);
//----------------Create JPopupMenu-----------------
JPopupMenu popupMenu = new JPopupMenu();
JMenuItem menuItemOpen = new JMenuItem("Show!");
popupMenu.add(menuItemOpen);
//---------------------------------------------------
table1 = new JTable();
table1.setComponentPopupMenu(popupMenu);
//Show menu by pressing the right button
table1.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
if (SwingUtilities.isRightMouseButton( e )) {
Point point = e.getPoint();
int column = table1.columnAtPoint(point);
int row = table1.rowAtPoint(point);
table1.changeSelection(row, column, false, false);
}
}
});
//Clear selected row
table1.addFocusListener(new FocusAdapter() {
@Override
public void focusLost(FocusEvent e) {
//textField.setText("Focus Lost table 1");
table1.clearSelection();
}
});
//Default model of Table 1
table1.setModel(new DefaultTableModel(
new Object[][] {
{"table1: 1", null, null, null, null},
{"table1: 2", null, null, null, null},
{"table1: 3", null, null, null, null},
{"table1: 4", null, null, null, null},
{"table1: 5", null, null, null, null},
{"table1: 6", null, null, null, null},
{"table1: 7", null, null, null, null},
{"table1: 8", null, null, null, null},
{"table1: 9", null, null, null, null},
},
new String[] {
"New column", "New column", "New column", "New column", "New column"
}
)
@Override
public boolean isCellEditable(int row, int column) {
//all cells false
return false;
}
});
tabbedPane.addTab("TabTable1", null, table1, null);
table2 = new JTable();
table2.setComponentPopupMenu(popupMenu);
//Show menu by pressing the right button
table2.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
if (SwingUtilities.isRightMouseButton( e )) {
Point point = e.getPoint();
int column = table2.columnAtPoint(point);
int row = table2.rowAtPoint(point);
table2.changeSelection(row, column, false, false);
}
}
});
//Clear selected row
table2.addFocusListener(new FocusAdapter() {
@Override
public void focusLost(FocusEvent e) {
//textField.setText("Focus Lost table 2");
table2.clearSelection();
}
});
//Default model of Table 2
table2.setModel(new DefaultTableModel(
new Object[][] {
{null, "table2: 1", null, null, null},
{null, "table2: 2", null, null, null},
{null, "table2: 3", null, null, null},
{null, "table2: 4", null, null, null},
{null, "table2: 5", null, null, null},
{null, "table2: 6", null, null, null},
{null, "table2: 7", null, null, null},
{null, "table2: 8", null, null, null},
{null, "table2: 9", null, null, null},
},
new String[] {
"New column", "New column", "New column", "New column", "New column"
}
){
@Override
public boolean isCellEditable(int row, int column) {
//all cells false
return false;
}
});
tabbedPane.addTab("TabTable2", null, table2, null);
table3 = new JTable();
//Clear selected row when focus lost
table3.addFocusListener(new FocusAdapter() {
@Override
public void focusLost(FocusEvent e) {
table2.clearSelection();
}
});
//Show menu by pressing the right button
table3.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
if (SwingUtilities.isRightMouseButton( e )) {
Point point = e.getPoint();
int column = table3.columnAtPoint(point);
int row = table3.rowAtPoint(point);
table3.changeSelection(row, column, false, false);
}
}
});
//Default model of Table 3
table3.setModel(new DefaultTableModel(
new Object[][] {
{null, null, "table 3: 1", null, null},
{null, null, "table 3: 2", null, null},
{null, null, "table 3: 3", null, null},
{null, null, "table 3: 4", null, null},
{null, null, "table 3: 5", null, null},
{null, null, "table 3: 6", null, null},
{null, null, "table 3: 7", null, null},
{null, null, "table 3: 8", null, null},
{null, null, "table 3: 9", null, null},
},
new String[] {
"New column", "New column", "New column", "New column", "New column"
}
){
@Override
public boolean isCellEditable(int row, int column) {
//all cells false
return false;
}
});
table3.setComponentPopupMenu(popupMenu);
tabbedPane.addTab("TabTable3", null, table3, null);
//---------------------------Checking the selected table-------------------------------
menuItemOpen.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(table1.getSelectedRow()!=-1){
textField.setText(table1.getValueAt(table1.getSelectedRow(), 0).toString());
}else if(table2.getSelectedRow()!=-1){
textField.setText(table2.getValueAt(table2.getSelectedRow(), 1).toString());
}else if(table3.getSelectedRow()!=-1){
textField.setText(table3.getValueAt(table3.getSelectedRow(), 2).toString());
}
}
});
}
}
不要和FocusListener玩。无需清除表格选择。用户不希望在从一个选项卡移动到另一个选项卡时,行选择消失。因此,摆脱FocusListener,保持行选择不变 相反,您可以通过执行以下操作来获取当前关注的表:
menuItemOpen.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
JMenuItem mi = (JMenuItem)e.getSource();
JPopupMenu popup = (JPopupMenu)mi.getParent();
JTable table = (JTable)popup.getInvoker();
if (table.equals(table1))
{
textField.setText(table1.getValueAt(table1.getSelectedRow(), 0).toString());
}
else if (table.equals(table2))
{
textField.setText(table2.getValueAt(table2.getSelectedRow(), 1).toString());
}
else if (table.equals(table3))
{
textField.setText(table3.getValueAt(table3.getSelectedRow(), 2).toString());
}
}
});
不要和FocusListener玩。无需清除表格选择。用户不希望在从一个选项卡移动到另一个选项卡时,行选择消失。因此,摆脱FocusListener,保持行选择不变 相反,您可以通过执行以下操作来获取当前关注的表:
menuItemOpen.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
JMenuItem mi = (JMenuItem)e.getSource();
JPopupMenu popup = (JPopupMenu)mi.getParent();
JTable table = (JTable)popup.getInvoker();
if (table.equals(table1))
{
textField.setText(table1.getValueAt(table1.getSelectedRow(), 0).toString());
}
else if (table.equals(table2))
{
textField.setText(table2.getValueAt(table2.getSelectedRow(), 1).toString());
}
else if (table.equals(table3))
{
textField.setText(table3.getValueAt(table3.getSelectedRow(), 2).toString());
}
}
});
不要和FocusListener玩。无需清除表格选择。用户不希望在从一个选项卡移动到另一个选项卡时,行选择消失。因此,摆脱FocusListener,保持行选择不变 相反,您可以通过执行以下操作来获取当前关注的表:
menuItemOpen.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
JMenuItem mi = (JMenuItem)e.getSource();
JPopupMenu popup = (JPopupMenu)mi.getParent();
JTable table = (JTable)popup.getInvoker();
if (table.equals(table1))
{
textField.setText(table1.getValueAt(table1.getSelectedRow(), 0).toString());
}
else if (table.equals(table2))
{
textField.setText(table2.getValueAt(table2.getSelectedRow(), 1).toString());
}
else if (table.equals(table3))
{
textField.setText(table3.getValueAt(table3.getSelectedRow(), 2).toString());
}
}
});
不要和FocusListener玩。无需清除表格选择。用户不希望在从一个选项卡移动到另一个选项卡时,行选择消失。因此,摆脱FocusListener,保持行选择不变 相反,您可以通过执行以下操作来获取当前关注的表:
menuItemOpen.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
JMenuItem mi = (JMenuItem)e.getSource();
JPopupMenu popup = (JPopupMenu)mi.getParent();
JTable table = (JTable)popup.getInvoker();
if (table.equals(table1))
{
textField.setText(table1.getValueAt(table1.getSelectedRow(), 0).toString());
}
else if (table.equals(table2))
{
textField.setText(table2.getValueAt(table2.getSelectedRow(), 1).toString());
}
else if (table.equals(table3))
{
textField.setText(table3.getValueAt(table3.getSelectedRow(), 2).toString());
}
}
});
你好。在转储代码之前,请尝试询问您的问题。此外,您肯定应该缩小这里的代码范围。找出哪些特定功能(或行)是问题的根源。我还删除了您问题中的噪音,例如
帮助我
。我们知道你需要帮助,这就是你为什么问的原因。你一定要澄清你的问题。什么文本框数据?我不会读你的数百行来理解它是什么。我们明显缺乏背景。@Félix Gagnon Grenier:嗨,Felix!谢谢你的提示!我想展示一个可行的代码会很好。嘿,托马斯!是的,你是对的,展示一些代码是个好主意。但老实说,看看你的问题,试着想象自己是我。我对你的项目一无所知。在不分析代码的情况下,我怎么能理解你的问题呢?谁知道要花多长时间才能弄清楚到底发生了什么?如果你想让人回答你的问题,请确保它是可以回答的。现在,除了做你自己和/或花费大量时间,这有点难…@Félix Gagnon Grenier:好的,我理解你。我在这段代码上花了很长时间,决定在这里写。看起来有相关经验的人确实花了时间回答你:)别误会:我期待你继续使用这个网站。嘿。在转储代码之前,请尝试询问您的问题。此外,您肯定应该缩小这里的代码范围。找出哪些特定功能(或行)是问题的根源。我还删除了您问题中的噪音,例如帮助我
。我们知道你需要帮助,这就是你为什么问的原因。你一定要澄清你的问题。什么文本框数据?我不会读你的数百行来理解它是什么。我们明显缺乏背景。@Félix Gagnon Grenier:嗨,Felix!谢谢你的提示!我想展示一个可行的代码会很好。嘿,托马斯!是的,你是对的,展示一些代码是个好主意。但老实说,看看你的问题,试着想象自己是我。我对你的项目一无所知。在不分析代码的情况下,我怎么能理解你的问题呢?谁知道要花多长时间才能弄清楚到底发生了什么?如果你想让人回答你的问题,请确保它是可以回答的。现在,除了做你自己和/或花费大量时间,这有点难…@Félix Gagnon Grenier:好的,我理解你。我在这段代码上花了很长时间,决定在这里写。看起来有相关经验的人确实花了时间回答你:)别误会:我期待你继续使用这个网站。嘿。在转储代码之前,请尝试询问您的问题。此外,您肯定应该缩小这里的代码范围。找出哪些特定功能(或行)是问题的根源。我还删除了您问题中的噪音,例如帮助我
。我们知道你需要帮助,这就是你为什么问的原因。你一定要澄清你的问题。什么文本框数据?我不会读你的数百行来理解它是什么。我们明显缺乏背景。@Félix Gagnon Grenier:嗨,Felix!谢谢你的提示!我想展示一个可行的代码会很好。嘿,托马斯!是的,你是对的,展示一些代码是个好主意。但老实说,看看你的问题,试着想象自己是我。我对你的项目一无所知。在不分析代码的情况下,我怎么能理解你的问题呢?谁知道要花多长时间才能弄清楚到底发生了什么?如果你想让人回答你的问题,请确保它是可以回答的。现在,除了做你自己和/或花费大量时间,这有点难…@Félix Gagnon Grenier:好的,我理解你。我在这段代码上花了很长时间,决定在这里写。看起来有相关经验的人确实花了时间回答你:)别误会:我期待你继续使用这个网站。嘿。在转储代码之前,请尝试询问您的问题。此外,您肯定应该缩小这里的代码范围。找出哪些特定功能(或行)是问题的根源。我还从你的问题中去除了噪音,例如