单击GXT 3中的树的处理程序？ [英] Click Handlers for Trees in GXT 3?

问题描述

我一直在查看 GXT3的树 API ，以便在单击或双击某个节点时执行某个操作树，我似乎找不到任何可以工作的东西。

I've been looking through GXT3's Tree API for some way to execute an action when I click or double click on a node in a tree, and I can't seem to find anything that would work.

我知道 TreeGrid 有一个 CellClickHandler 和 CellDoubleClick 处理程序，但似乎没有什么类似的 Tree 。有从 Widget 继承的通用 addHandler 方法，但这似乎适用于整个树，而不是特定的节点

I know TreeGrid has a CellClickHandler and CellDoubleClick handler, but there doesn't seem to be anything similar for Tree. There's the generic addHandler method inherited from Widget but this seems like it would apply to the whole tree, not a specific node.

有没有什么我可以俯瞰，还是一个不同的/更好的方法呢？

Is there something I'm overlooking, or a different / better way to do this?

推荐答案

另一个选项是覆盖Tree的onDoubleClick（或onClick）方法：

Another option is to override Tree's onDoubleClick (or onClick) method:

Tree tree = new Tree<MyModel, String>(store, valueProvider){            
    @Override
    protected void onDoubleClick(Event event) {
        TreeNode<MyModel> node = findNode(event.getEventTarget().<Element> cast());
        Info.display("Double Click", "You double clicked this node!");
        super.onDoubleClick(event);
   }
};

这篇关于单击GXT 3中的树的处理程序？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！