获取所有选中的复选框索引 [英] Get all selected index of Checkbox

问题描述

我是 Java Swing 的初学者.我有一个 3 列的表.第一列只有复选框.我想获取复选框的所有选定项的索引并将其存储在 ArrayList 中.我怎样才能做到这一点?

I am a beginner to Java Swing. I have a table with 3 columns. The first column has only check boxes. I wanted to get the index of all the selected items of the check box and store it in an ArrayList. How can I accomplish this?

推荐答案

当您使用 JTable 时，您正在为复选框列"使用 TableCellRenderer.只要将复选框添加到第 1 列，您就知道"复选框是在哪一行创建的.正如您所知道的 row(=index) ，您可以注册一个操作来收集复选框索引.

As you use a JTable you are using a TableCellRenderer for the "checkbox column". As long you add check boxes to column 1 you "know" in which row the checkbox is created. As you know the row(=index) you can register an action to collect together the checked boxes index.

(从头开始)

public class MyRenderer extends DefaultTableCellRenderer {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, final int row, int column) {
    if (column != 1) {
        return super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
    }
    JCheckBox cb = new JCheckBox();
    cb.addActionListener(new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent ae) {
            list.add(row); // whatever list is ...
        }

    });
    return cb;
}

}

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