EasyUI Tree+Asp.net实现权限树或目录树导航

来源：互联网发布：navicat for mysql教程编辑：程序博客网时间：2024/05/08 06:15

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Main.aspx.cs" Inherits="Manage_Main" %><!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>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />    <title>网站后台通用管理系统，<%=adminname%>，您好！</title>    <link href="Css/default.css" rel="stylesheet" type="text/css" />    <!--easyui-->    <link rel="stylesheet" type="text/css" href="easyui/themes/default/easyui.css" />    <link rel="stylesheet" type="text/css" href="easyui/themes/default/tree.css" />    <link rel="stylesheet" type="text/css" href="easyui/themes/icon.css" />    <script type="text/javascript" src="easyui/jquery-1.8.0.min.js"></script>    <script type="text/javascript" src="easyui/jquery.easyui.min.js"></script>    <script type="text/javascript" src='EasyUI/JQLoader.js'> </script>    <script type="text/javascript" src='EasyUI/outlook.js'> </script>    <script type="text/javascript">        $(function () {            $('#lefttree').tree({                animate: true,                checkbox: false,                url: 'GetTreeDataFromDB.ashx?father=0',                onClick: function (node) {                    if (node.attributes != "") {                        addTab(node.text, node.attributes, node.id);                    }                },                onLoadSuccess: function (node, data) {                    $('#lefttree').show();                }            });            $('#loginOut').click(function () {                $.messager.confirm('系统提示', '您确定要退出本次登录吗?', function (r) {                    if (r) {                        location.href = 'LoginExit.ashx';                    }                });            })        });    </script>    </head>    <body class="easyui-layout" style="overflow-y: hidden"  scroll="no">    <form id="form1" runat="server">      <noscript>      <div style=" position:absolute; z-index:100000; height:2046px;top:0px;left:0px; width:100%; background:white; text-align:center;"> <img src="images/noscript.gif" alt='抱歉，请开启脚本支持！' /> </div>      </noscript>      <div region="north" split="true" border="false" style="overflow: hidden; height: 60px;        background: url(images/layout-browser-hd-bg.gif) #7f99be repeat-x center 50%;        line-height: 20px;color: #fff; font-family: Verdana, 微软雅黑,黑体">        <div style="float:right;padding-top:5px;padding-right:20px;text-align:right;"> <span class="head">       </span>          <div style=" margin-top:6px;" class="head"> <span class="icon icon-quit"> </span><a href="#" id="loginOut">安全退出</a> </div>        </div>        <span style="padding-left:10px; font-size: 16px; "><img src="images/blocks.gif" width="20" height="20" align="absmiddle" />网站后台通用管理系统 V1.0</span> </div>      <div region="south" split="true" style="height: 30px; background: #D2E0F2; ">        <div class="footer"> 网站后台通用管理系统 <%=adminname%>，您好！ 版权所有@2012</div>      </div>      <div region="west" hide="true" split="true" title="导航菜单" style="width:180px;" id="west">        <div id="nav" class="easyui-accordion" fit="true" border="false">           <!--  导航内容 -->          <div id="lefttree" style="margin:5px;"></div>        </div>      </div>      <div id="mainPanle" region="center" style="background: #eee; overflow-y:hidden">        <div id="tabs" class="easyui-tabs"  fit="true" border="false" >          <div title="欢迎使用" style="padding:20px;overflow:hidden; " > <span style="font-size:18px;">欢迎进入系统</span> </div>        </div>      </div>      <div id="mm" class="easyui-menu" style="width:150px;">        <div id="mm-tabupdate">刷新</div>        <div class="menu-sep"></div>        <div id="mm-tabclose">关闭</div>        <div id="mm-tabcloseall">全部关闭</div>        <div id="mm-tabcloseother">除此之外全部关闭</div>        <div class="menu-sep"></div>        <div id="mm-tabcloseright">当前页右侧全部关闭</div>        <div id="mm-tabcloseleft">当前页左侧全部关闭</div>        <div class="menu-sep"></div>        <div id="mm-exit">退出</div>      </div>    </form></body></html>

<%@ WebHandler Language="C#" Class="GetTreeDataFromDB" %>using System;using System.Web;using System.Configuration;using System.Data;using System.Text;using System.Collections.Generic;//addusing System.Web.Script.Serialization;public class GetTreeDataFromDB : IHttpHandler{    public void ProcessRequest(HttpContext context)    {        context.Response.ContentType = "text/plain";        //获取数据库中的分类数据        string fatherid = context.Request.QueryString["father"];        DataTable dt = createDT();        string json = GetTreeJsonByTable(dt, "module_id", "module_name","module_url", "module_fatherid", "0");        context.Response.Write(json);        context.Response.End();            }    #region 根据DataTable生成EasyUI Tree Json树结构    StringBuilder result = new StringBuilder();    StringBuilder sb = new StringBuilder();        /// <summary>    /// 根据DataTable生成EasyUI Tree Json树结构    /// </summary>    /// <param name="tabel">数据源</param>    /// <param name="idCol">ID列</param>    /// <param name="txtCol">Text列</param>    /// <param name="url">节点Url</param>    /// <param name="rela">关系字段</param>    /// <param name="pId">父ID</param>    private string GetTreeJsonByTable(DataTable tabel, string idCol, string txtCol, string url, string rela, object pId)    {        result.Append(sb.ToString());        sb.Clear();        if (tabel.Rows.Count > 0)        {            sb.Append("[");            string filer = string.Format("{0}='{1}'", rela, pId);            DataRow[] rows = tabel.Select(filer);            if (rows.Length > 0)            {                foreach (DataRow row in rows)                {                    sb.Append("{\"id\":\"" + row[idCol] + "\",\"text\":\"" + row[txtCol] + "\",\"attributes\":\"" + row[url] + "\",\"state\":\"open\"");                    if (tabel.Select(string.Format("{0}='{1}'", rela, row[idCol])).Length > 0)                    {                        sb.Append(",\"children\":");                        GetTreeJsonByTable(tabel, idCol, txtCol,url, rela, row[idCol]);                        result.Append(sb.ToString());                        sb.Clear();                    }                    result.Append(sb.ToString());                    sb.Clear();                    sb.Append("},");                }                sb = sb.Remove(sb.Length - 1, 1);            }            sb.Append("]");            result.Append(sb.ToString());            sb.Clear();        }        return result.ToString();    }    #endregion     #region 创建数据    protected static DataTable createDT()    {        DataTable dt = new DataTable();        dt.Columns.Add("module_id");        dt.Columns.Add("module_name");        dt.Columns.Add("module_fatherid");        dt.Columns.Add("module_url");        dt.Columns.Add("module_order");        dt.Rows.Add("C1", "全国", "0", "1.aspx", "1");        dt.Rows.Add("M01", "广东", "C1", "2.aspx", "1");        dt.Rows.Add("M0101", "深圳", "M01", "3.aspx", "100");        dt.Rows.Add("M010101", "南山区", "M0101", "4.aspx", "1000");        dt.Rows.Add("M010102", "罗湖区", "M0101", "", "1001");        dt.Rows.Add("M010103", "福田区", "M0101", "", "1002");        dt.Rows.Add("M010104", "宝安区", "M0101", "", "1003");        dt.Rows.Add("M010105", "龙岗区", "M0101", "", "1004");        dt.Rows.Add("M01010301", "上梅林", "M010103", "", "1002001");        dt.Rows.Add("M01010302", "下梅林", "M010103", "", "1002002");        dt.Rows.Add("M01010303", "车公庙", "M010103", "", "1002003");        dt.Rows.Add("M01010304", "竹子林", "M010103", "", "1002004");        dt.Rows.Add("M01010305", "八卦岭", "M010103", "", "1002005");        dt.Rows.Add("M01010306", "华强北", "M010103", "", "1002006");        dt.Rows.Add("M0102", "广州", "M01", "", "101");        dt.Rows.Add("M010201", "越秀区", "M0102", "", "1105");        dt.Rows.Add("M010202", "海珠区", "M0102", "", "1106");        dt.Rows.Add("M010203", "天河区", "M0102", "", "1107");        dt.Rows.Add("M010204", "白云区", "M0102", "", "1108");        dt.Rows.Add("M010205", "黄埔区", "M0102", "", "1109");        dt.Rows.Add("M010206", "荔湾区", "M0102", "", "1110");        dt.Rows.Add("M010207", "罗岗区", "M0102", "", "1111");        dt.Rows.Add("M010208", "南沙区", "M0102", "", "1112");        return dt;    }    #endregion    public bool IsReusable    {        get        {            return false;        }    }}

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