我正在试图从 DefaultTreeModel 中删除节点。 如果我试图删除一个节点, 它不会从 GUI 中删除。 如果我删除了两个节点, 只有一个节点被删除, 等等 。
我正在使用 removeNodefrop Parrent( 节点); 来删除节点 。
谁能帮我解决这个问题吗?
听起来你的树没有检测到 nodeswerereremoved 事件,而该事件应该由 removeNodeFromParent( 节点); 方法触发。
您是否使用标准的 DefaultTreeModel 和 JTree 对象? 如果使用, 它们在清除时应该自动刷新。 如果您写了任一类的习惯, 您可能不会处理 nodeswereremoved 事件( 在您的自定义 < code> JTree 中), 或者您不会再次触发事件( 在您的自定义 DefaultTree 中) 。
如果您再次使用标准对象, 请尝试在删除节点后拨打 JTree. revalidate (; 和 JTree. repaint (); , 以迫使树从模型更改中重新涂色 。
最后一项建议是,你是否尝试过 removeXXX () 方法中的任何一种 JTree 方法?
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