在Java GUI中更新JTree [英] updating JTree in java GUI

问题描述

我在GUI中使用了JTree并将其添加到JFrame中.当我想更新它并在程序的另一部分中更改它的节点时(在程序运行时，作为执行的操作)，我尝试添加新节点或删除节点.但是我的界面没有改变.请给我建议解决方案.

I used a JTree in my GUI and added it to a JFrame. When I want to update it and change it's nodes in another part of my program (while program is running, as an action performed) I try to add new nodes, or remove nodes to it; But my interface doesn't change. Please suggest me a solution.

致谢

推荐答案

除了insertNodeInto建议之外，您还可以使用:

In addition to the insertNodeInto suggestion you can also use:

DefaultTreeModel model = (DefaultTreeModel)tree.getModel();
DefaultMutableTreeNode root = (DefaultMutableTreeNode)model.getRoot();
root.add(new DefaultMutableTreeNode("another_child"));
model.reload(root);

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