JTree在更新树时避免崩溃节点 [英] JTree avoid collapse node when update the tree

问题描述

我正在使用树表对象(该示例取自sun站点)..我会在更新模型时防止树节点崩溃，因为每次我需要重新展开所有节点时，这很无聊更新它. 你能帮助我吗? 谢谢！

I'm using a tree table object (the example taken from the sun site)..I would prevent the collapse of the tree nodes when I update the model, because it's boring to re-expand all the nodes everytime I need to update it. Can you help me? Thank you!

推荐答案

在没有看到模型的情况下，并且不知道更新模型"到底是什么意思，只有几个事实

Without seeing the model and without knowing what exactly you mean by "update the model", just a couple of facts

• 结构更改:不可能，树无法知道/何时/哪些节点与以前相同
• 插入/删除:请勿触摸不相关节点的扩展状态
• valueChanged:完全不应该接触扩展状态

检查您的模型实现是否总是触发最窄的事件.然后检查它在普通的JTree中的行为:如果可以的话，则TreeTable有故障(顺便说一句:SwingX有较新的版本:-)

Check your model implementation if it always fires the most narrow event possible. Then check how it behaves in a plain ol' JTree: if it's okay there, then the TreeTable has a glitch (BTW: SwingX has a newer version :-)

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