WebRoot/lib/zTree/v3/demo/cn/core/expand.html

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<!DOCTYPE html>
<HTML>
<HEAD>
	<TITLE> ZTREE DEMO - beforeExpand / onExpand && beforeCollapse / onCollapse</TITLE>
	<meta http-equiv="content-type" content="text/html; charset=UTF-8">
	<link rel="stylesheet" href="../../../css/demo.css" type="text/css">
	<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/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" src="../../../js/jquery.ztree.excheck-3.5.js"></script>
	  <script type="text/javascript" src="../../../js/jquery.ztree.exedit-3.5.js"></script>-->
	<SCRIPT type="text/javascript">
		<!--
		var setting = {
			view: {
				selectedMulti: false
			},
			data: {
				key: {
					title:"t"
				},
				simpleData: {
					enable: true
				}
			},
			callback: {
				beforeClick: beforeClick,
				beforeCollapse: beforeCollapse,
				beforeExpand: beforeExpand,
				onCollapse: onCollapse,
				onExpand: onExpand
			}
		};

		var zNodes =[
			{ id:1, pId:0, name:"可折腾的父节点 1", t:"我很普通，随便 展开/折叠 我吧", open:false},
			{ id:11, pId:1, name:"叶子节点 - 1", t:"我老爸很普通，随便折腾他吧"},
			{ id:12, pId:1, name:"可折腾的父节点 2", t:"我和我老爸都很普通，随便折腾我和他吧", open: false},
			{ id:121, pId:12, name:"父节点 - 121", t:"我老爸很普通，随便折腾他吧", open:true},
			{ id:1211, pId:121, name:"父节点 - 1211", t:"我老爸很普通，随便折腾他吧", open:false},
			{ id:1212, pId:1211, name:"叶子节点 - 1212", t:"我老爸很普通，随便折腾他吧"},
			{ id:1213, pId:121, name:"父节点 - 1213", t:"我老爸很普通，随便折腾他吧", open:false},
			{ id:1214, pId:1213, name:"叶子节点 - 1214", t:"我老爸很普通，随便折腾他吧"},
			{ id:123, pId:12, name:"叶子节点 - 23", t:"我老爸很普通，随便折腾他吧"},
			{ id:13, pId:1, name:"叶子节点 - 3", t:"我老爸很普通，随便折腾他吧"},
			{ id:2, pId:1, name:"无法折叠的父节点", t:"休想让我折叠起来...除非你用 expandAll 方法", open:false, collapse:false},
			{ id:21, pId:2, name:"叶子节点2 - 1", t:"哈哈哈，我老爸NB吧，不能折叠吧？"},
			{ id:22, pId:21, name:"叶子节点2 - 2", t:"哈哈哈，我老爸NB吧，不能折叠吧？"},
			{ id:23, pId:21, name:"叶子节点2 - 3", t:"哈哈哈，我老爸NB吧，不能折叠吧？"},
			{ id:3, pId:2, name:"无法展开的父节点", t:"就凭你也想展开我？难呀...嘿嘿, 除非你用 expandAll 方法", open:false, expand:true},
			{ id:31, pId:3, name:"叶子节点3 - 1", t:"居然让你看到了...莫非你用了全部节点展开？"},
			{ id:32, pId:31, name:"叶子节点3 - 2", t:"居然让你看到了...莫非你用了全部节点展开？"},
			{ id:33, pId:31, name:"叶子节点3 - 3", t:"居然让你看到了...莫非你用了全部节点展开？"},
			{ id:4, pId:3, name:"空空的父节点 1", t:"一无所有...除了我自己", isParent:true, open:false}
		];

		var log, className = "dark";
		function beforeClick(treeId, treeNode) {
			if (treeNode.isParent) {
				return true;