Question

我在图像中显示了2个日期选择器。

首先我选择已发布，然后返回日期选择器会显示在isuue日期之后的日期。返回datepicker

时，发布到后缀日期不可见

datepicker的代码......

JLabel lblIssueDate = new JLabel("Issue Date"); lblIssueDate.setBounds(85, 47, 137, 14); issuePanel.add(lblIssueDate); issueDate = new JXDatePicker(); java.util.Date utilDate=new Date(); java.sql.Date sqldate=new java.sql.Date(utilDate.getTime()); issueDate.setDate(sqldate); issueDate.setBounds(232, 44, 184, 20); issuePanel.add(issueDate); JLabel lblReturnDate = new JLabel("Return Date"); lblReturnDate.setBounds(85, 113, 137, 14); issuePanel.add(lblReturnDate); returnDate = new JXDatePicker(); returnDate.setBounds(232, 110, 184, 20); issuePanel.add(returnDate);

Answer 1

基本上，您可以通过JXMonthView设置日期选择器的上下可接受范围。这将限制用户可以选择的日期

例如......

DatePicker

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Date;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import org.jdesktop.swingx.JXDatePicker;

public class TestDatePicker {

    public static void main(String[] args) {
        new TestDatePicker();
    }

    public TestDatePicker() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                }

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setLayout(new BorderLayout());
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        private JXDatePicker issueDate;
        private final JXDatePicker returnDate;

        public TestPane() {
            setLayout(new GridBagLayout());
            GridBagConstraints gbc = new GridBagConstraints();
            gbc.gridx = 0;
            gbc.gridy = 0;

            JLabel lblIssueDate = new JLabel("Issue Date");
            add(lblIssueDate, gbc);

            issueDate = new JXDatePicker();
            returnDate = new JXDatePicker();

            issueDate.addPropertyChangeListener("date", new PropertyChangeListener() {
                @Override
                public void propertyChange(PropertyChangeEvent evt) {
                    System.out.println("date");
                    Date selectedDate = issueDate.getDate();
                    returnDate.getMonthView().setLowerBound(selectedDate);
                }
            });
            java.util.Date utilDate = new Date();
            java.sql.Date sqldate = new java.sql.Date(utilDate.getTime());
            issueDate.setDate(sqldate);
            gbc.gridx++;
            add(issueDate, gbc);

            gbc.gridx = 0;
            gbc.gridy++;
            JLabel lblReturnDate = new JLabel("Return Date");
            add(lblReturnDate, gbc);

            gbc.gridx++;
            add(returnDate, gbc);
        }
    }

}

现在，如果您希望能够在IssueDate之前选择日期，则可以改为使用setUpperBound。

如果您还要排除所选日期，则需要使用Calendar并按所需方向将其滚动一天以包含它...

我还强烈建议使用适当的布局管理器，因为它们将处理系统之间的各种差异以及字体渲染的方式等等。

Swing也可以与布局管理器一起使用，所以选择忽略它们会产生很多有趣的副作用......

查看Laying Out Components Within a Container

如何在其他日期选择器中选择日期时如何禁用日期选择器中的日期

1 个答案: