Question

我有一个JTable我想要左键单击并右键单击JPopupMenu。 Normaly通过左键单击JTable可以选择一行。我想通过右键单击并显示弹出菜单来执行相同的操作。 有人知道怎么做吗？

table.addMouseListener(new MouseAdapter() {
       @Override
       public void mouseClicked(MouseEvent e) {
           if (SwingUtilities.isRightMouseButton(e)) {
               //this line gives wrong result because table.getSelectedRow() stay alwase on the same value
               codeModel.setSelectedFileName(table.getValueAt(table.getSelectedRow(), 0).toString());
               JPopupMenu popup = createRightClickPopUp();
               popup.show(e.getComponent(), e.getX(), e.getY());
           }else{
               codeModel.setSelectedFileName(table.getValueAt(table.getSelectedRow(), 0).toString());
               codeTextArea.setText(codeModel.getCodeContents());
           }
       }
   });

Answer 1

table.addMouseListener(new MouseAdapter() {
   @Override
   public void mouseClicked(MouseEvent e) { //or mouseReleased(MouseEvent e)
       if (SwingUtilities.isRightMouseButton(e)) {
           //-- select a row
           int idx = table.rowAtPoint(e.getPoint());
           table.getSelectionModel().setSelectionInterval(idx, idx);
           //---
           codeModel.setSelectedFileName(table.getValueAt(table.getSelectedRow(), 0).toString());
           JPopupMenu popup = createRightClickPopUp();
           popup.show(e.getComponent(), e.getX(), e.getY());
       }else{
           codeModel.setSelectedFileName(table.getValueAt(table.getSelectedRow(), 0).toString());
           codeTextArea.setText(codeModel.getCodeContents());
       }
   }
});

Answer 2

请阅读我的问题JTable with JPopupMenu
最重要的是ListSelectionModel的类型
对你的问题很轻微，但两个答案都是正确的，很好的

Answer 3

您可以使用鼠标侦听器中的JTable.rowAtPoint（event.getPoint（））轻松确定单击的行。

如何在JTable上右键单击java中的左键单击操作？

3 个答案: