配合Ajaxpro读取无限父子关系部门使用javascript生成的树形目录

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配合Ajaxpro读取无限父子关系部门使用javascript生成的树形目录

前台的js页面：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="displayDepartment.aspx.cs" Inherits="OASolution.Web.systemModule_displayDepartment" %>

<!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>无标题页</title>
<style type="text/css">

</style>
<link href="../css/css.css" rel="stylesheet" type="text/css">
    <script language=javascript type="text/javascript">
        function init()//初始化
        {
            var obj = document.getElementById('div1');
            getAll(obj,0);//0是父节点编号
        }
        function getAll(obj,e)//传入父容器，和父节点的编号
        {
            var ds = OASolution.Web.systemModule_displayDepartment.getAllChildDepartment(e).value;
            if(ds !=null && ds.Tables[0] != null && ds.Tables[0].Rows.length != 0)
            {
                var tb = ds.Tables[0];
                var length = tb.Rows.length;
                if(length != 0)
                {
                    for(var n = 0;n < length ; n++)
                    {
                        var divObj = document.createElement('div');
                        divObj.id =e + '_' + tb.Rows[n]['DepartmentID'];
//                        divObj.className = 'home_right';
                        divObj.innerHTML ='<hr style="color:#DAE1E9">' + createSpace(tb.Rows[n]['Grade'],tb.Rows[n]['DepartmentID']) +tb.Rows[n]['DepartmentName'] +'</a> <a href="editDepartment.aspx?departid='+tb.Rows[n]['DepartmentID']+'"><img border=0 alt="编辑" title="编辑" src="../images/edit.gif" /></a> ';

                        obj.appendChild(divObj);
                        if(tb.Rows[n]['Grade'] != 1)
                        {
                            divObj.style.display = 'none';
                        }
                        getAll(divObj,tb.Rows[n]['DepartmentID']);
                    }
                }
            }
            {
                return ;
            }
        }
        function createSpace(grade,departID)//显示空格。传入级别和部门编号
        {
            var space = OASolution.Web.systemModule_displayDepartment.createLine(grade,departID).value;
            return space;
        }
        function clickNode()//点击事件（要注意点击的元素对象）
        {
            changePic();
            var aObj = event.srcElement;
            var obj;
            if(aObj.tagName == 'A')
            {
                obj = aObj.parentElement;
            }
            else if(aObj.tagName == 'IMG')
            {
                obj = aObj.parentElement.parentElement;
            }
            var parentID = obj.id;
            var temp = parentID.lastIndexOf('_');
            var tempParentID = parentID.substr(temp + 1);
            var childObj = obj.getElementsByTagName('div');
            var length = childObj.length;
            if(length != 0)
            {
                for(var n = 0; n < length ;n++)
                {
                    var childID = childObj[n].id;
                    var temp = childID.lastIndexOf('_');
                    var pID = childID.substr(0,temp);
                   if(tempParentID == pID )
                   {
                        if(childObj[n].style.display == 'none')
                        {
                            childObj[n].style.display = 'block';
                        }
                        else
                        {
                             for(var n = 0; n < length ;n++)
                             {
                                childObj[n].style.display = 'none';
                             }
                             changePicToPlus(childObj);
                        }
                   }
                }
            }
            else
            {
                return ;
            }
        }
        function changePic()//切换加减图片的显示注意点击的元素对象
        {
            var picObj;
            var aObj = event.srcElement;
             if(aObj.tagName == 'A')
            {
                picObj = aObj.getElementsByTagName('img');
                if(picObj.length != 0)
                {
                    var pic = picObj[0].src;
                    var temp = pic.lastIndexOf('/');
                    var picname = pic.substr(temp + 1);
                    if(picname == 'plus.gif')
                    {
                        picObj[0].src = '../images/minus.gif';
                    }
                    else
                    {
                        picObj[0].src = '../images/plus.gif';
                    }
                }
            }
            else if(aObj.tagName == 'IMG')
            {
                picObj = aObj;
                var pic = picObj.src;
                var temp = pic.lastIndexOf('/');
                var picname = pic.substr(temp + 1);
                if(picname == 'plus.gif')
                {
                     picObj.src = '../images/minus.gif';
                }
                else
                {
                     picObj.src = '../images/plus.gif';
                }
            }

        }
        function changePicToPlus(divObj)//收缩的时候把所有子子节点的减号改为加号图片
        {
            if(divObj.length != 0)
            {
                for(var n = 0;n < divObj.length ; n++)
                {
                    var picObj = divObj[n].getElementsByTagName('img');
                    if(picObj.length != 0)
                    {
                        var pic = picObj[0].src;
                        var temp = pic.lastIndexOf('/');
                        var picname = pic.substr(temp + 1);
                        picObj[0].src = '../images/plus.gif';
                    }
                }
            }
            else
            {

            }
        }
    </script>
</head>
<body onload="init()">
    <form id="form1" runat="server">
    <table width="92%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
    <td width="25%" class="right_name" style="padding-top:15px; padding-left:10px; padding-bottom:5px"><img src="../images/name/name_fsxx.gif" width="35" height="35" align="absmiddle">
        部门信息
    </td>
    <td class="font" style="padding-top:15px; padding-bottom:5px"><div align="right">
    <a href=DepartMent.aspx><img border=0 src="../images/button/add.gif" width="83" height="24" /></a>　
    <a href="javascript:save()"><img src="../images/button/modify.gif" width="83" height="24" border=0></a>
    </div></td>
</tr>
</table>
<table width="92%" border="0" align="center" cellpadding="0" cellspacing="0" style="font-size: 12pt">
<tr>
    <td height=400px class="table" align=left valign=top><div id="div1" style="font-size: 12px; color: #475A78; margin-left:20px; margin-top:20px;" align=left> </div></td>
</tr>

</table>


    </form>
</body>
</html>
后台的cs代码：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using AjaxPro;

namespace OASolution.Web
{
    public partial class systemModule_displayDepartment : PageBase
    {
        public OASolution.BLL.SystemModle SM = new OASolution.BLL.SystemModle();
        protected void Page_Load(object sender, EventArgs e)
        {
            AjaxPro.Utility.RegisterTypeForAjax(typeof(systemModule_displayDepartment));
        }

        /// <summary>
        /// 输入部门编号得到该部门的所以子部门
        /// </summary>
        /// <param name="parentID"></param>
        //public void getAllChildDepartment(int parentID)
        //{
        //    DataSet ds = SM.GetDepartMentList(parentID);

        //    if (ds.Tables[0].Rows.Count == 0 || ds.Tables[0] == null || ds == null)
        //    {
        //        return;
        //    }
        //    for (int n = 0; n < ds.Tables[0].Rows.Count; n++)
        //    {
        //        ListItem li = new ListItem();
        //        li.Value = ds.Tables[0].Rows[n][0].ToString();
        //        li.Text = createLine(int.Parse(ds.Tables[0].Rows[n][7].ToString().Trim())) + ds.Tables[0].Rows[n][3].ToString().Trim();
        //        this.ddlDepartMent.Items.Add(li);
        //        getAllChildDepartment(int.Parse(ds.Tables[0].Rows[n][0].ToString()));
        //    }
        //}

        /// <summary>
        /// 生成父子部门的划线
        /// </summary>
        /// <param name="grade"></param>
        /// <returns></returns>
        [AjaxPro.AjaxMethod]
        public string createLine(int grade,int departID)
        {
            string line = String.Empty;
            int count = GetChildCount(departID);
            if (grade == 1)
            {
                if (count == 0)
                {
                    return "     <a style='cursor:hand;' onclick='clickNode()' id='" + departID + "'>";
                }
                else
                {
                    return " <a style='cursor:hand;' onclick='clickNode()' id='" + departID + "'><img src='../images/plus.gif' />";
                }
            }
            else
            {
                for (int n = 1; n < grade; n++)
                {
                    line += "<a color='#475A78'>--------</a>";
                }
                line += "<a style='cursor:hand;' onclick='clickNode()' id='" + departID + "'>";
            }
            if(count != 0)
            {
                line += "<img src='../images/plus.gif' />";
            }
            return line;
        }



        [AjaxPro.AjaxMethod]
        public DataSet getAllChildDepartment(int parentID)
        {
            DataSet ds = SM.GetDepartMentList(parentID);
            return ds;
        }
        [AjaxPro.AjaxMethod]
        public DataSet GetChildDepartmentID(string departID)
        {
            DataSet ds = SM.GetChildDepartmenID(int.Parse(departID));
            return ds;
        }

        [AjaxPro.AjaxMethod]
        public int GetChildCount(int departID)
        {
            return SM.GetChildCount(departID);
        }
    }
}

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原文地址：https://www.cnblogs.com/zjypp/p/2319510.html