如何在JTable/JXTable中设置列宽？

我的应用程序由几个JTables组成。 JXTables。目标是存储列宽并在启动时重新加载它们。如何在JTable/JXTable中设置列宽？

但是，下面的代码不会对表的列宽没有什么变化：

tblTasks.getColumn(1).setWidth(36);

而且这个什么也不做：

tblTasks.getColumn(1).setPreferredWidth(36);

任何想法？

来源

2013-03-01 salocinx

但下面的代码确实在表的列宽没有什么变化：
tblTasks.getColumn(1).setWidth(36); 
而且这个什么也不做：
tblTasks.getColumn(1).setPreferredWidth(36); 
任何想法？

。

适当构造函数是JTable.getColumnModel().getColumn(0).setPreferredWidth(36);

例如

enter image description here

import java.awt.BorderLayout; 
import java.awt.EventQueue; 
import java.awt.Font; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.util.Stack; 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.JPanel; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.WindowConstants; 
import javax.swing.table.DefaultTableModel; 
import javax.swing.table.TableColumn; 
import javax.swing.table.TableColumnModel; 

public class TableRowHeight { 

    private static final long serialVersionUID = 1L; 
    private JFrame frame = new JFrame("p*s*s*s*s*t*t"); 
    private String[] columnNames = {"one", "two", "Playing with", "four", "five",}; 
    private String[][] data = { 
     {"aaaaaa", "bbbbbb", "cccccc", "dddddd", "eeeeeee",}, 
     {"bbbbbb", "cccccc", "dddddd", "eeeeeee", "aaaaaa",}, 
     {"cccccc", "dddddd", "eeeeeee", "aaaaaa", "bbbbbb",}, 
     {"dddddd", "eeeeeee", "aaaaaa", "bbbbbb", "cccccc",}, 
     {"eeeeeee", "aaaaaa", "bbbbbb", "cccccc", "dddddd",}}; 
    private JTable table = new JTable(new DefaultTableModel(data, columnNames)); 
    private TableColumnModel tcm = table.getColumnModel(); 
    private Stack<TableColumn> colDeleted = new Stack<TableColumn>(); 
    private JButton restoreButton = new JButton("Restore Column Size"); 
    private JButton hideButton = new JButton("Set Column Size to Zero"); 
    private JButton deleteButton = new JButton("Delete Column"); 
    private JButton addButton = new JButton("Restore Column"); 

    public TableRowHeight() { 
     table.setRowMargin(4); 
     table.setRowHeight(30); 
     table.setFont(new Font("SansSerif", Font.BOLD + Font.PLAIN, 20)); 
     JScrollPane scrollPane = new JScrollPane(table); 
     for (int i = 0; i < (tcm.getColumnCount()); i++) { 
      tcm.getColumn(i).setPreferredWidth(150); 
     } 
     table.setPreferredScrollableViewportSize(table.getPreferredSize()); 
     restoreButton.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       tcm.getColumn(2).setPreferredWidth(100); 
      } 
     }); 
     hideButton.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       tcm.getColumn(2).setPreferredWidth(000); 
      } 
     }); 
     deleteButton.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       if (table.getColumnCount() > 0) { 
        TableColumn colToDelete = table.getColumnModel().getColumn(table.getColumnCount() - 1); 
        table.removeColumn(colToDelete); 
        table.validate(); 
        colDeleted.push(colToDelete); 
        addButton.setEnabled(true); 
       } else { 
        deleteButton.setEnabled(false); 
       } 
      } 
     }); 
     addButton.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       if (colDeleted.size() > 0) { 
        table.addColumn(colDeleted.pop()); 
        table.validate(); 
        deleteButton.setEnabled(true); 
       } else { 
        addButton.setEnabled(false); 
       } 
      } 
     }); 
     JPanel btnPanel = new JPanel(); 
     btnPanel.add(hideButton); 
     btnPanel.add(restoreButton); 
     btnPanel.add(deleteButton); 
     btnPanel.add(addButton); 
     frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); 
     frame.add(scrollPane, BorderLayout.CENTER); 
     frame.add(btnPanel, BorderLayout.SOUTH); 
     frame.pack(); 
     frame.setLocation(150, 150); 
     frame.setVisible(true); 
    } 

    public static void main(String[] args) { 
     EventQueue.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       TableRowHeight frame = new TableRowHeight(); 
      } 
     }); 
    } 
}

来源

2013-03-01 13:19:03 mKorbel

table.getColumn("Column Name").setMinWidth(36);

来源

2014-08-09 10:13:35 Anak1n

table.getColumn("Column Name").setMaxWidth(36);

来源

2014-09-09 14:04:14 user4023220

这个工作对我来说！ – 2017-08-31 09:59:19

我所做的是将最小宽度设置为每列的值。对于最后一列的首选宽度，我选择Integer.MAX_VALUE，将所有其他列都推到最小大小。

这是我的项目的代码段：

ruleTable.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN); 
ruleTable.getColumnModel().getColumn(0).setMinWidth(25); 
ruleTable.getColumnModel().getColumn(1).setMinWidth(125); 
ruleTable.getColumnModel().getColumn(2).setMinWidth(175); 
ruleTable.getColumnModel().getColumn(2).setMaxWidth(Integer.MAX_VALUE);

希望它会帮助你或者其他人......对你来说可能是有点晚了;-P

来源

2016-08-10 19:31:53 Stefan

是的，但无论如何感谢:-)！ – salocinx 2016-08-10 19:40:25

如何在JTable/JXTable中设置列宽？

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