Jtable 显示和隐藏列并保存配置。

Jtable show and hide column and save the configuration.

我正在使用 JXTable,它有一个 setColumnControlVisible(true),它在滚动上方的右上角显示一个按钮,我们可以通过按下它来显示和隐藏列。我想记住应用程序关闭时的更改,但还无法弄清楚,这是我到目前为止所尝试的。我检查了JxTable 的src,但没有如何获取隐藏的列索引或列号。

package paractice;

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.table.AbstractTableModel;

import org.jdesktop.swingx.JXTable;

public class TableTest extends JFrame{

    private static final long serialVersionUID = 1L;
    private JXTable table;

    public TableTest() {
        setLayout(new BorderLayout());
        table = new JXTable(new model());
        //add(table.getTableHeader(), BorderLayout.NORTH);
        add(new JScrollPane(table), BorderLayout.CENTER);
        table.setColumnControlVisible(true);
        setSize(700, 700);


    }

    public class model extends AbstractTableModel{

        String[] columns = {"column1", "column2", "column3", "column4", "column5"};

        @Override
        public String getColumnName(int column) {
            return columns[column];
        }

        @Override
        public boolean isCellEditable(int arg0, int arg1) {
            return super.isCellEditable(arg0, arg1);
        }

        @Override
        public void setValueAt(Object arg0, int row, int col) {
            super.setValueAt(arg0, row, col);
            fireTableCellUpdated(row, col);
        }

        public int getColumnCount() {
            return columns.length;
        }

        public int getRowCount() {
            return 0;
        }

        public Object getValueAt(int arg0, int arg1) {
            return null;
        }

    }

    public static void main(String args[]) {
        TableTest test = new TableTest();
        test.setVisible(true);
    }

}

but didn't how to get the column index or column number which is hidden.

比较 TableModel 和 JTableHeader。

只需创建一个简单的循环来检查 TableModel 的所有列名称,看看 table 是否包含该列。类似于:

for (int i = 0; i < model.getColumnCount(); i++)
{
    Object name = model.getColumnName();

    TableColumn column = table.getColumn( name );

    if (column == null)
        // column is hidden do your processing
}

然后下次显示table时就可以得到所有隐藏列的名称然后使用:

table.removeColumn( table.getColumn( name ) );