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ppgo_job/static/zTree3/api/cn/treeNode.open.html
2018-07-13 17:53:34 +08:00

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<div class="apiDetail">
<div>
<h2><span>Boolean</span><span class="path">treeNode.</span>open</h2>
<h3>概述<span class="h3_info">[ 依赖 <span class="highlight_green">jquery.ztree.core</span> 核心 js ]</span></h3>
<div class="desc">
<p></p>
<div class="longdesc">
<p>记录 treeNode 节点的 展开 / 折叠 状态</p>
<p class="highlight_red">1初始化节点数据时如果设定 treeNode.open = true则会直接展开此节点</p>
<p class="highlight_red">2叶子节点 treeNode.open = false</p>
<p class="highlight_red">3为了解决部分朋友生成 json 数据出现的兼容问题, 支持 "false","true" 字符串格式的数据</p>
<p class="highlight_red">4非异步加载模式下无子节点的父节点设置 open=true 可显示为展开状态但异步加载模式下不会生效v3.5.15+ </p>
<p>默认值false</p>
</div>
</div>
<h3>Boolean 格式说明</h3>
<div class="desc">
<p> true 表示节点为 展开 状态</p>
<p> false 表示节点为 折叠 状态</p>
</div>
<h3>treeNode 举例</h3>
<h4>1. 查看当前被选中的节点的 展开 / 折叠 状态</h4>
<pre xmlns=""><code>var treeObj = $.fn.zTree.getZTreeObj("tree");
var sNodes = treeObj.getSelectedNodes();
if (sNodes.length > 0) {
var isOpen = sNodes[0].open;
}
</code></pre>
</div>
</div>