zTree实现访问到第一节点在相同水平当前所选节点数目

zTree实现访问到第一节点在相同水平当前所选节点数目

1、实现源代码

<!DOCTYPE html>
<html>
<head>
	<title>zTree实现基本树</title>
	<meta http-equiv="content-type" content="text/html; charset=UTF-8">
	<link rel="stylesheet" type="text/css" href="../../../css/demo.css">
	<link rel="stylesheet" type="text/css" href="../../../css/zTreeStyle/zTreeStyle.css">
	<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
	<script type="text/javascript" src="../../../js/jquery.ztree.core-3.5.js"></script>
	<script type="text/javascript">
		<!--
		var setting = {
			data: {
				simpleData: {
					enable: true
				}
			}
		};

		var zNodes =[
			{ id:1, pId:0, name:"湖北省", open:true},
			{ id:11, pId:1, name:"武汉市", open:true},
			{ id:111, pId:11, name:"汉口"},
			{ id:112, pId:11, name:"汉阳"},
			{ id:113, pId:11, name:"武昌"},
			{ id:12, pId:1, name:"黄石市"},
			{ id:121, pId:12, name:"黄石港区"},
			{ id:122, pId:12, name:"西塞山区"},
			{ id:123, pId:12, name:"下陆区"},
			{ id:124, pId:12, name:"铁山区"},
			{ id:13, pId:1, name:"黄冈市"},
			{ id:131, pId:13, name:"黄州区"},
			{ id:132, pId:13, name:"麻城市"},
			{ id:133, pId:13, name:"武穴市"},
			{ id:134, pId:13, name:"团风县"},
			{ id:135, pId:13, name:"浠水县"},
			{ id:136, pId:13, name:"罗田县"},
			{ id:137, pId:13, name:"英山县"},
			{ id:2, pId:0, name:"湖南省", open:true},
			{ id:21, pId:2, name:"长沙市", open:true},
			{ id:211, pId:21, name:"芙蓉区"},
			{ id:212, pId:21, name:"天心区"},
			{ id:213, pId:21, name:"岳麓区"},
			{ id:214, pId:21, name:"开福区"},
			{ id:22, pId:2, name:"株洲市"},
			{ id:221, pId:22, name:"天元区"},
			{ id:222, pId:22, name:"荷塘区"},
			{ id:223, pId:22, name:"芦淞区"},
			{ id:224, pId:22, name:"石峰区"}
		];

		$(document).ready(function(){
			$.fn.zTree.init($("#baseTree"), setting, zNodes);
		});

		/**
		 * 获取当前选中的第一个节点在同级节点中的序号
		 */
		function indexNodes()
		{
		    var treeObj = $.fn.zTree.getZTreeObj("baseTree");
		    //获取选中的节点
			var nodes = treeObj.getSelectedNodes();
			if (nodes.length>0)
			{
			    for(var i=0;i<nodes.length;i++)
			    {
			        var index = treeObj.getNodeIndex(nodes[i]);
			        alert("获取当前选中的第一个节点在同级节点中的序号："+index);
			    }
			}
		}
		//-->
	</script>
 </head>

<body>
<div class="content_wrap">
	<div class="zTreeDemoBackground left">
		<ul id="baseTree" class="ztree" style="height: 300px; width:200px; overflow-y: auto"></ul>
		<input type="button" id="btn" onclick="indexNodes()" value="获取当前选中的第一个节点在同级节点中的序号"/>
	</div>
</div>
</body>
</html>

2、实现结果

（1）初始化

（2）选择“汉口”时

（3）选择“汉阳”时

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3、源代码说明

var index = treeObj.getNodeIndex(nodes[i]);
alert("获取当前选中的第一个节点在同级节点中的序号："+index);

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