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- <div class="apiDetail">
- <div>
- <h2><span>Function()</span><span class="path">treeNode.</span>getPreNode</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>获取与 treeNode 节点相邻的前一个节点。</p>
- <p class="highlight_red">初始化节点数据时,由 zTree 增加此属性,请勿提前赋值</p>
- </div>
- </div>
- <h3>Function 参数说明</h3>
- <div class="desc">
- <h4><b>返回值</b><span>JSON</span></h4>
- <p>与 treeNode 节点相邻的前一个节点。</p>
- <p class="highlight_red">如果 treeNode 是第一个节点,返回 null 。</p>
- </div>
- <h3>treeNode 举例</h3>
- <h4>1. 获取当前被选中的节点的前一个节点</h4>
- <pre xmlns=""><code>var treeObj = $.fn.zTree.getZTreeObj("tree");
- var sNodes = treeObj.getSelectedNodes();
- if (sNodes.length > 0) {
- var node = sNodes[0].getPreNode();
- }
- </code></pre>
- </div>
- </div>
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