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2，最简单的树（自定义图标）
-----后台
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
public string GetzNodes()
{
StringBuilder sb = new StringBuilder();
sb.Append("<script>");
sb.Append("var zNodes =[");
//*****************************************加入遍历代码
for (int i = 0; i < 50; i++)
{
if (i == 0)
{
//父节点
sb.Append(SetParametes(i.ToString(), "-1", "a", true, true));
}
else if(i<10)
//子节点
sb.Append(SetParametes(i.ToString(), "0", "b", false));
else
//父节点
sb.Append(SetParametes(i.ToString(), "-1", "a", true));
}
//********************************************************
sb.Append("];");
sb.Append("</script>");
return sb.ToString();
}
/// <summary>
/// 设置节点
/// </summary>
/// <param name="id">id</param>
/// <param name="pid">父级id</param>
/// <param name="name">名称</param>
/// <param name="parent">是否是父节点？</param>
/// <param name="open">是否展开？</param>
/// <returns>返回节点</returns>
private string SetParametes(string id, string pid, string name, bool parent, bool open = false)
{
//父节点的展开图标
string Popenpath = "../img/1_open.png";
//父节点的关闭图标
string Pclosepath = "../img/1_close.png";
//子节点的图标
string Cclosepath = "../img/2.png";
StringBuilder sb = new StringBuilder();
sb.Append("{");
sb.AppendFormat("id:{0},", id);
sb.AppendFormat("pId:{0},", pid);
sb.AppendFormat("name:\"{0}\",", name);
if (open)
{
sb.AppendFormat("open: true,");
}
if (parent)
{
sb.AppendFormat("iconOpen: \"{0}\",", Popenpath);
sb.AppendFormat("iconClose: \"{0}\"", Pclosepath);
}
else
{
sb.AppendFormat("icon:\"{0}\"", Cclosepath);
}
sb.Append("},");
return sb.ToString();
}
}-----前台
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link href="http://www.mamicode.com/css/demo_new.css" rel="stylesheet" type="text/css" />
<link href="http://www.mamicode.com/css/zTreeStyle/zTreeStyle.css" rel="stylesheet" type="text/css" />
<script src="http://www.mamicode.com/js/jquery-1.4.4.min.js" type="text/javascript"></script>
<script src="http://www.mamicode.com/js/jquery.ztree.core-3.5.js" type="text/javascript"></script>
</head>
<%=GetzNodes()%>
<script type="text/javascript">
var setting = { data: { simpleData: { enable: true} }, callback: { onClick: zTreeOnClick} };
$(document).ready(function () {
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});
//显示div
function showdiv() {
$("#zhezhao").fadeIn(300);
$("#treeDemodiv").fadeIn(300);
}
//隐藏div
function closediv() {
$("#zhezhao").fadeOut(300);
$("#treeDemodiv").fadeOut(300);
}
//展示zTree
function showZTree() {
var w = document.documentElement.clientWidth;
var h = document.documentElement.clientHeight;
var l = document.documentElement.clientWidth / 2 - $("#treeDemodiv").width() / 2;
var t = document.documentElement.clientHeight / 2 - $("#treeDemodiv").height() / 2;
$("#zhezhao").css({ "width": w + "px", "height": h + "px", "filter": "alpha(opacity=25)", "-moz-opacity": "0.25", "-khtml-opacity": "0.25", "opacity": "0.25" });
$("#treeDemodiv").css({ "left": l + "px", "top": t + "px" });
showdiv();
}
//点击触发事件
function zTreeOnClick(event, treeId, treeNode) {
alert(treeNode.id + "," + treeNode.name);
closediv();
}
</script>
<body>
<form id="form1" runat="server">
<input type="button" value="http://www.mamicode.com/显示" onclick="showZTree()">
<!------------------Treediv--------------------->
<div id="treeDemodiv" style="top:0px;left:0px;padding:0px;display:none;margin:0px;;height:470px;width:230px;;position:fixed;z-index:100" class="zTreeDemoBackground left">
<ul style="padding:0px;margin:0px;background:#3498DB;height:20px;top:0px;left:0px;"><li style="height:20px;float:right;padding:0px;margin:0px;"><img style="width:19px;;height:19px;z-index:100;cursor:pointer" onclick="$(‘#treeDemodiv‘).fadeOut(300);$(‘#zhezhao‘).fadeOut(300);" src="http://www.mamicode.com/img/yzfalse.png" /></li></ul>
<ul id="treeDemo" style="padding:0px;margin:0px;height:448px;width:228px;z-index:100;background:#fff" class="ztree"></ul>
</div>
<div id="zhezhao" style="top:0px;left:0px;display:none;filter:alpha(opacity=25);-moz-opacity:0.25;-khtml-opacity: 0.25;opacity: 0.25;position:fixed;background:#000;z-index:9"></div>
<!------------------Treediv--------------------->
</form>
</body>
</html>
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本文出自 “程序猿的家--Hunter” 博客，请务必保留此出处http://962410314.blog.51cto.com/7563109/1596027
2，最简单的树（自定义图标）
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