Tag: jcombobox jtree

JTree选择问题

我有一个由JLabel和JComboBox组成的节点的JTree。 我想要的是，当点击时，所选的JComboBox将展开，但似乎第一次点击是由JTree本身（？）消耗的，所以我必须点击它两次。 这是我的代码： import java.awt.*; import java.awt.event.*; import java.util.*; import javax.swing.*; import javax.swing.UIManager.LookAndFeelInfo; import javax.swing.plaf.ColorUIResource; import javax.swing.tree.*; public class JComboBoxJTree extends JPanel { final JTree entitiesTree; public JComboBoxJTree() { entitiesTree = createTree(); JScrollPane entitiesTreeScrollPane = new JScrollPane(entitiesTree); this.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); c.gridx = 0; c.gridy = 1; c.weightx = 1.0; c.weighty = […]