blocks|key|4079195|text|决定很简单:我们应该使用Swing+EventQueue：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4079196|final+int+selectedRow+=+0;
//+Save+selected+row+table
tableList.getSelectionModel().addListSelectionListener(new+ListSelectionListener()+{
++++@Override
++++public+void+valueChanged(ListSelectionEvent+e)+{
++++++++selectedRow+=+e.getFirstIndex();
++++}
});

//+Restore+selected+raw+table
model.addTableModelListener(new+TableModelListener()+{++++++
++++@Override
++++public+void+tableChanged(TableModelEvent+e)+{
++++++++SwingUtilities.invokeLater(new+Runnable()+{
++++++++++++@Override
++++++++++++public+void+run()+{
++++++++++++++++if+(selectedRow+>=+0)+{
++++++++++++++++++++++++++++tableList.addRowSelectionInterval(index,+index);
++++++++++++++++}
+++++++++++++}
++++++++});
++++}
});|code-block|syntax|javascript|4079197|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Decision is simple: we should use Swing EventQueue:

<pre><code>final int selectedRow = 0;
// Save selected row table
tableList.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
 @Override
 public void valueChanged(ListSelectionEvent e) {
 selectedRow = e.getFirstIndex();
 }
});

// Restore selected raw table
model.addTableModelListener(new TableModelListener() { 
 @Override
 public void tableChanged(TableModelEvent e) {
 SwingUtilities.invokeLater(new Runnable() {
 @Override
 public void run() {
 if (selectedRow &gt;= 0) {
 tableList.addRowSelectionInterval(index, index);
 }
 }
 });
 }
});
</code></pre>

blocks|key|2180323|text|第一个答案中的示例显示了基本解决方案，但不能开箱即用。不可能更改最后的"selectedRow“。所以应该使用可变的整数(例如AtomicInteger)。tamleModelListener将任务分派到swing，因此稍后会调用它-在大多数情况下，是在表更改已经删除了选择之后。因此，在大多数情况下，selectedRow将为-1。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2180324|我对上面的例子做了一些修改(增加了单元格选择，但它也适用于整行)：|2180325|++++final+AtomicInteger+selectedRow=new+AtomicInteger(-1);
++++final+AtomicInteger+selectedCol=new+AtomicInteger(-1);
++++tblZeiten.getSelectionModel().addListSelectionListener(new+ListSelectionListener()+{
++++++++@Override
++++++++public+void+valueChanged(ListSelectionEvent+e)
++++++++{
++++++++++++selectedRow.set(tblZeiten.getSelectedRow());
++++++++++++selectedCol.set(tblZeiten.getSelectedColumn());
++++++++}
++++});
++++tblZeiten.getModel().addTableModelListener(new+TableModelListener()+{++++++
++++++++@Override
++++++++public+void+tableChanged(TableModelEvent+e)
++++++++{
++++++++++++TableCellEditor+editor=tblZeiten.getCellEditor();
++++++++++++if+(editor!=null)+editor.cancelCellEditing();

++++++++++++final+int+row=selectedRow.get();
++++++++++++final+int+col=selectedCol.get();
++++++++++++if+(row<0%7C%7Ccol<0)+return;

++++++++++++SwingUtilities.invokeLater(new+Runnable()+{
++++++++++++++++@Override
++++++++++++++++public+void+run()+{
++++++++++++++++++++//+http://book.javanb.com/the-java-developers-almanac-1-4/egs/javax.swing.table/Sel.html
++++++++++++++++++++tblZeiten.changeSelection(row,col,+false,+false);
+++++++++++++++++}
++++++++++++});
++++++++}
++++});|code-block|syntax|javascript|2180326|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The example from the first answer shows the basic solution but won't work out of the box. It's not possible to change the final "selectedRow". So a mutable integer (e.g. AtomicInteger) should be used.
The tamleModelListener dispatches to task to swing, so it gets invoked later - in most cases after the table change has already removed the selection. So selectedRow will in most cases be -1.

I have changed the above example a bit (and added single cell selection but it also works for full rows):

<pre><code> final AtomicInteger selectedRow=new AtomicInteger(-1);
 final AtomicInteger selectedCol=new AtomicInteger(-1);
 tblZeiten.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
 @Override
 public void valueChanged(ListSelectionEvent e)
 {
 selectedRow.set(tblZeiten.getSelectedRow());
 selectedCol.set(tblZeiten.getSelectedColumn());
 }
 });
 tblZeiten.getModel().addTableModelListener(new TableModelListener() { 
 @Override
 public void tableChanged(TableModelEvent e)
 {
 TableCellEditor editor=tblZeiten.getCellEditor();
 if (editor!=null) editor.cancelCellEditing();

 final int row=selectedRow.get();
 final int col=selectedCol.get();
 if (row&lt;0||col&lt;0) return;

 SwingUtilities.invokeLater(new Runnable() {
 @Override
 public void run() {
 // http://book.javanb.com/the-java-developers-almanac-1-4/egs/javax.swing.table/Sel.html
 tblZeiten.changeSelection(row,col, false, false);
 }
 });
 }
 });
</code></pre>

blocks|key|2180348|text|这是第一个答案的更新版本。您可以使用字段来存储行，因为它可以被内部类访问。我在这个解决方案中遇到了一些麻烦，因为我使用了周期性线程来更新表。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2180349|private+int+selectedRow+=+-1;

public+void+mymethod()+{
//put+code+to+create+the+table+here...
++++JTable+tableList+=+new+JTable();


//+Save+selected+row+table
++++tableList.getSelectionModel().addListSelectionListener(new+ListSelectionListener()+{
++++++++@Override
++++++++public+void+valueChanged(ListSelectionEvent+e)+{
++++++++++++selectedRow+=+e.getFirstIndex();
++++++++}
++++});

//+Restore+selected+raw+table
model.addTableModelListener(new+TableModelListener()+{++++++
++++@Override
++++public+void+tableChanged(TableModelEvent+e)+{
++++++++SwingUtilities.invokeLater(new+Runnable()+{
++++++++++++@Override
++++++++++++public+void+run()+{
++++++++++++++++if+(selectedRow+>=+0)+{
++++++++++++++++++++++++++++tableList.addRowSelectionInterval(index,+index);
++++++++++++++++}
+++++++++++++}
++++++++});
++++}
++++});
}|code-block|syntax|javascript|2180350|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is an updated version of the first answer. You can use a field to store the row as it can be accessed by inner classes. I had some trouble with this solution tough because I used a periodic thread to update the table. 

<pre><code>private int selectedRow = -1;

public void mymethod() {
//put code to create the table here...
 JTable tableList = new JTable();


// Save selected row table
 tableList.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
 @Override
 public void valueChanged(ListSelectionEvent e) {
 selectedRow = e.getFirstIndex();
 }
 });

// Restore selected raw table
model.addTableModelListener(new TableModelListener() { 
 @Override
 public void tableChanged(TableModelEvent e) {
 SwingUtilities.invokeLater(new Runnable() {
 @Override
 public void run() {
 if (selectedRow &gt;= 0) {
 tableList.addRowSelectionInterval(index, index);
 }
 }
 });
 }
 });
}
</code></pre>

How to preserve table row selecetion after table mode update (fireTableDataChanes)? I know that I should save selection before fire and restore it after (from <a href="https://stackoverflow.com/questions/254212/preserve-jtable-selection-across-tablemodel-change">there</a>). But when I try to restore selection in TableModelListener it doesn't work. So where should I restore selection?

Update:
Now I try to restore selection in this way:
 table.setModel(model);

<pre><code> model.addTableModelListener(new TableModelListener() {

 @Override
 public void tableChanged(TableModelEvent e) {
 table.addRowSelectionInterval(1, 1);
 }
 });
</code></pre>

but it doesn't work.

JTable row selection after TableModel update

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

如何在表模式更新(fireTableDataChanes)后保留表行选择？我知道我应该在着火之前保存选择，并在(从)之后恢复它。但是，当我尝试在TableModelListener中恢复选择时，它不起作用。那么我应该在哪里恢复选择呢？更新:现在我尝试用这种方式恢复选择:table.setModel(模型)；    mo...

问TableModel更新后的JTable行选择
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问TableModel更新后的JTable行选择EN