zTree学习

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1.zTree 是一个依靠 jQuery 实现的多功能 “树插件”。优异的性能、灵活的配置、多种功能的组合是 zTree 最大优点,可以参考http://www.treejs.cn/v3/main.php#_zTreeInfo

2.使用zTree,首先要下载相应的js,jquery,css文件,“`

<link href="css/demo.css" rel="stylesheet" />    <link href="css/ztreestyle/ztreestyle.css" rel="stylesheet" />    <script src="js/jquery-1.4.4.min.js"></script>    <script src="js/jquery.ztree.core-3.5.js"></script>    <script src="js/jquery.ztree.all-3.5.js"></script>    <script src="js/jquery.ztree.excheck-3.5.js"></script>    <script src="js/jquery.ztree.exedit-3.5.js"></script>

3.初始化zTree

 //初始化树    function InitTree() {        var setting = {            //check: {            //    enable: true  //设置 zTree 的节点上是否显示 checkbox / radio 默认false            //},            view: {                fontCss: getFontCss, //个性化文字样式，只针对 zTree 在节点上显示的<A>对象                dblClickExpand: false,//双击节点时，是否自动展开父节点的标识 默认true                showLine: false  //设置ztree是否显示节点之间的连线  默认true            },             data: {                key: {                    title: "t"                },                simpleData: {                    enable: true  //是否使用简单数据模式                }            },            callback: {                onClick: onClick   //用于捕获节点被点击的事件回调函数//如果设置了 setting.callback.beforeClick 方法，且返回 false，将无法触发 onClick 事件回调函数。            }        };        //请求树状数据，初始化树//var zNodes = [            {                id: 1, pId: 0, name: "父节点1 - 展开", open: true, iconOpen: "css/ztreestyle/img/diy/1_open.png", iconClose: "css/ztreestyle/img/diy/1_close.png"            },            { id: 11, pId: 1, name: "父节点11 - 折叠",icon:"css/ztreestyle/img/diy/4.png"},            { id: 111, pId: 11, name: "叶子节点111" ,icon:"css/ztreestyle/img/diy/2.png" },            { 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, open: true },            { id: 2, pId: 0, name: "父节点2 - 折叠", iconOpen: "css/ztreestyle/img/diy/1_open.png", iconClose: "css/ztreestyle/img/diy/1_close.png" },            { 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, iconOpen: "css/ztreestyle/img/diy/1_open.png", iconClose: "css/ztreestyle/img/diy/1_close.png" }        ];        //$(document).ready(function () {            //$.fn.zTree.init($("#treeDemo"), setting, zNodes);        //});//返回的数据格式        $.ajax({            type: 'Get',            url: '?rootid=0',            dataType: "json", //可以是text，如果用text，返回的结果为字符串；如果需要json格式的，可是设置为json            success: function (data) {                $.fn.zTree.init($("#leftTree"), setting, data);            },            error: function (msg) {                alert(" 数据加载失败！" + msg);            }        });    }

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