我有一棵树，我采用了zTree的样本形式，但是我无法从这棵树中获取选定的值。尽管我已经更改了原始代码，但是在这里我发布了官方Ztree Demo的原始代码。任何帮助！！
<SCRIPT type="text/javascript">
var setting = {
data: {
simpleData: {
enable: true
}
}
};
数组来存储树的节点
var zNodes =[
{ id:1, pId:0, name:"pNode 1", open:true},
{ id:11, pId:1, name:"pNode 11"},
{ id:111, pId:11, name:"leaf node 111"},
{ id:12, pId:1, name:"pNode 12"},
{ id:121, pId:12, name:"leaf node 121"},
{ id:13, pId:1, name:"pNode 13 - no child", isParent:true},
{ id:2, pId:0, name:"pNode 2"},
{ id:21, pId:2, name:"pNode 21", open:true},
{ id:211, pId:21, name:"leaf node 211"},
{ id:22, pId:2, name:"pNode 22"},
{ id:221, pId:22, name:"leaf node 221"},
{ id:23, pId:2, name:"pNode 23"},
{ id:231, pId:23, name:"leaf node 231"},
{ id:3, pId:0, name:"pNode 3 - no child", isParent:true}
];
该数组的树初始化
$(document).ready(function(){
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});
</SCRIPT>
在此，树以id treeDemo在Div中显示。在这里，我想从此树中提醒警报框中的选定值。
<BODY>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul id="treeDemo" class="ztree"></ul>
</div>
</div>
</BODY>
最佳答案
在zTree v3.x上，
您需要两件事：
1）在设置中，添加一个回调
var setting = {
...
callback: {
onCheck: zTreeOnCheck
}
};
2）在回调中使用ztreeOnCheck，您可以通过每次检查/取消选中所有选定的节点来获得。样品
function zTreeOnCheck(event, treeId, treeNode) {
var treeObj = $.fn.zTree.getZTreeObj("treeDemo");
var nodes = treeObj.getCheckedNodes(true);
console.log(nodes); //Here are all of the selected nodes
};