Z-Tree用法
今天同事给我介绍了一个Z-Tree。之前树都是自己写,样式很一般,出树后对树进行操作代码量也很大。通过同事介绍的这个Z-Tree
仔细研究了一下,发现还可以,用着挺方便的,自己写了个demo进行测试,很完美
下面我就对自己写的demo进行一下演示讲解:
原文地址:http://www.cnblogs.com/sixiangqimeng/p/3344024.html
首先介绍一下Z-Tree的源文件采用的是3.5.14版本,里面包括四个文件夹(第一个帮助文档,用来查看树里面的一些方法。第二个和第四个是我们用到的css和js。第三个是示例)
我们主要从第三个入手(示例里面包括中文版(cn)和英文版(en)),我们打开cn。我想大家一看目录就知道要打开哪个了吧。打开index
![](http://images0.cnblogs.com/blog/477677/201309/28161331-136ec730fea245cd991fe39a5e628035.jpg)
打开后如下图:这个图左面是不同的树类型,右面是树的效果。左面有各种各样的树可以选择,如果选择好用哪种,就找到右面的文件路径例如(core/noline.html)这里就是源码。
![](http://images0.cnblogs.com/blog/477677/201309/28161439-123656b244c048ff9e1edfd42e82e74e.jpg)
我们打开源码
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<!DOCTYPE html> <HTML> <HEAD> <TITLE> ZTREE DEMO - noIcon </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: { showIcon: showIconForTree }, data: { simpleData: { enable: true } } }; var zNodes =[ { id:1, pId:0, name:"父节点1 - 展开", open:true}, { id:11, pId:1, name:"父节点11 - 折叠"}, { id:111, pId:11, name:"叶子节点111"}, { id:112, pId:11, name:"叶子节点112"}, { id:113, pId:11, name:"叶子节点113"}, { id:114, pId:11, name:"叶子节点114"}, { id:12, pId:1, name:"父节点12 - 折叠"}, { id:121, pId:12, name:"叶子节点121"}, { id:122, pId:12, name:"叶子节点122"}, { id:123, pId:12, name:"叶子节点123"}, { id:124, pId:12, name:"叶子节点124"}, { id:13, pId:1, name:"父节点13 - 没有子节点", isParent:true}, { id:2, pId:0, name:"父节点2 - 折叠"}, { id:21, pId:2, name:"父节点21 - 展开", open:true}, { id:211, pId:21, name:"叶子节点211"}, { id:212, pId:21, name:"叶子节点212"}, { id:213, pId:21, name:"叶子节点213"}, { id:214, pId:21, name:"叶子节点214"}, { id:22, pId:2, name:"父节点22 - 折叠"}, { id:221, pId:22, name:"叶子节点221"}, { id:222, pId:22, name:"叶子节点222"}, { id:223, pId:22, name:"叶子节点223"}, { id:224, pId:22, name:"叶子节点224"}, { id:23, pId:2, name:"父节点23 - 折叠"}, { id:231, pId:23, name:"叶子节点231"}, { id:232, pId:23, name:"叶子节点232"}, { id:233, pId:23, name:"叶子节点233"}, { id:234, pId:23, name:"叶子节点234"}, { id:3, pId:0, name:"父节点3 - 没有子节点", isParent:true} ]; function showIconForTree(treeId, treeNode) { return !treeNode.isParent; }; $(document).ready(function(){ $.fn.zTree.init($("#treeDemo"), setting, zNodes); }); //--> </SCRIPT> </HEAD> <BODY> <h1>不显示节点图标的树</h1> <h6>[ 文件路径: core/noicon.html ]</h6> <div class="content_wrap"> <div class="zTreeDemoBackground left"> <ul id="treeDemo" class="ztree"></ul> </div> <div class="right"> <ul class="info"> <li class="title"><h2>1、setting 配置信息说明</h2> <ul class="list"> <li>此 Demo 利用 Function 设置了使父节点不显示图标的规则</li> <li class="highlight_red">是否显示节点图标请设置 setting.view.showIcon 属性,详细请参见 API 文档中的相关内容</li> </ul> </li> <li class="title"><h2>2、treeNode 节点数据说明</h2> <ul class="list"> <li>是否显示图标,不需要 treeNode 节点数据提供特殊设置,但如果用户需要根据不同节点动态设置,可以对节点数据增加特殊属性,用于判别</li> </ul> </li> </ul> </div> </div> </BODY> </HTML>
下面我将用代码举例完成一棵树
原文地址:http://www.cnblogs.com/sixiangqimeng/p/3344024.html
根据我的业务需求,我要出一颗所有知识点的树,这段代码是从数据库取数据(访问数据库代码就不写了,这是根据我的业务逻辑写的)后赋值给一个方法,把数据序列号成json数据返回到前台
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
public ActionResult GetKpMenu() { string quesBankID = Session["CurUser"] == null ? "" : (Session["CurUser"] as CurUser).QuesBankID.ToString(); string strJson = "["; DataTable dt = new QuesInformation().GetKpMenu(quesBankID, "1"); if (dt.Rows.Count > 0) { new MenuInfo().GetKpMenu(dt, "0", ref strJson); } strJson += "]"; return Content(strJson); }
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
/// <summary> /// 知识点DataTable转换为Json树 /// </summary> /// <param name="dt">知识点</param> /// <param name="parentId">父节点ID(默为:0)</param> /// <param name="_strJsonTME">ref传入,返回json字符串</param> public void GetKpMenu(DataTable dt, string parentId, ref string _strJsonTME) { for (int i = 0; i < dt.Rows.Count; i++) { if (dt.Rows[i]["ParentNodeID"].ToString() == parentId) { _strJsonTME += "{\"name\":\"" + dt.Rows[i]["NodeTitle"].ToString() + "\",\"id\":\"" + dt.Rows[i]["KpNodeID"] + "\""; if (Convert.ToBoolean(dt.Rows[i]["HasChild"])) { _strJsonTME += ",\"children\":["; string KpNodeID = dt.Rows[i]["KpNodeID"].ToString(); GetKpMenu(dt, KpNodeID, ref _strJsonTME); _strJsonTME += "]},"; } else { _strJsonTME += "},"; } } if (i == dt.Rows.Count - 1) { _strJsonTME = _strJsonTME.Trim(','); } } }
由此即可出来一颗树如图: