如何在jsTree中获取所选节点的ID？ [英] How do I get the id of the selected node in jsTree?

问题描述

如何在 jsTree 中获取所选节点的ID？

How can I get the id of the selected node in a jsTree?

function createNewNode() {
  alert('test');
  var tree = $.tree.reference("#basic_html");
  selectedNodeId = xxxxxxxxx; //insert instruction to get id here
  tree.create({ data : "New Node Name" }, selectedNodeId);
}

推荐答案

jsTree中的节点基本上是包裹的列出项目。这将为您提供第一个参考。

Nodes in jsTree are essentially wrapped list items. This will get you a reference to the first one.

var n = $.tree.focused().get_node('li:eq(0)')

您可以替换 $。tree.focused （）如果你有对树的引用。

You can replace $.tree.focused() if you have a reference to the tree.

要获取id，请取第一个匹配的元素

To get the id, take the first matched element

if (n.length)
    id = n[0].id

或者您可以使用jQuery attr函数，该函数适用于集合中的第一个元素

or you can use the jQuery attr function, which works on the first element in the set

id = n.attr('id');

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