二级联动菜单

<% ... @ Control Language="C#" AutoEventWireup="true" CodeBehind="LeftMenu.ascx.cs" Inherits="SXT.iPowerKit.HairHouse.Web.WebControls.LeftMenu"  %>
<% ... @ Register TagPrefix="sxt" Namespace="SXT.Common.Web.UI" Assembly="SXT.Common.Web.UI"  %>

< script  language ="javascript" > ...
    function outliner(flag)
    ...{            
        var child = document.all[event.srcElement.getAttribute("child",false)];                
        for(i=1;i<=<%=Num %>;i++)
        ...{
            var v=(i+flag);
            if(document.getElementById(v))
                document.getElementById(v).className="collapsed";
        }        
        if (null != child)
        ...{
            if(child.className == "collapsed")
            ...{
                child.className = "expanded";
                return;
            }        
        }
    }
</ script >

< table  cellspacing ="0"  cellpadding ="0"  width ="100%" >
     < tr  style ="height:5px" >< td ></ td ></ tr >
     < tr >
         < td  valign ="top" >
             < table  width ="95%"  border ="0"  align ="center"  cellpadding ="0"  cellspacing ="0" >
             < tr >
               < td  id ="Td1"  width ="100%"  valign ="top"  runat ="server" >               
                   < sxt:RepeaterEx  ID ="rptSystemList"  runat ="server" >                     
                     < ItemTemplate >  
                         <% ... --<div style='display:<%# GetAdminStyle(Eval("systemID").ToString())%>'>--%>
                        <div style='display:block'>
                        <table width="100%" border="0" cellspacing="0" cellpadding="0">
                          <tr>
                            <td width="100%" height="22" background="image/left_menu_bg.GIF"  style="border:1px solid #dfeaf0">
                                <table width="97%" height="22" border="0" align="center" cellpadding="0" cellspacing="0">
                                    <tr>
                                      <td width="19%"><img src="/image/LeftMenu/left_menu_dot1.gif" width="31" height="22" /></td>
                                      <td width="81%"><font style="font-size:14px; color:#3d7699;font-weight:bold;CURSOR: hand" onclick="outliner('ALL')" child='<%#Eval("Num") %>ALL'><%#Eval("ModuleName")%></font></td>
                                    </tr>
                                </table>                    
                            </td>
                          </tr>
                        </table>
                        <div class='<%# Convert.ToInt32(Eval("Num"))>1?"collapsed":"expanded" %>' id='<%#Eval("Num") %>ALL'>
                           <div style="height:178px">
                              <table width="144" border="0" align="center" cellpadding="0" cellspacing="0">
                                    <sxt:RepeaterEx ID="rptChildList" runat="server" datasource='<%# ChildSystemDataSource(Eval("moduleID"))%>'>
                                        <ItemTemplate>
                                            <tr>
                                              <td width="14" height="20">
                                                  <table width="100%" border="0" cellspacing="0" cellpadding="0">
                                                      <tr>
                                                        <td width="14" height="20"><img src="image/gscontent_dot1.GIF" width="6" height="6" /></td>
                                                      </tr>
                                                  </table>
                                               </td>
                                               <td width="130">&nbsp;<a href='<%# Eval("ModuleUrl") %>' class="content"><%# Eval("ModuleName") %></a>
                                               </td>
                                            </tr>
                                        </ItemTemplate>
                                    </sxt:RepeaterEx>     
                                </table>
                            </div>
                        </div>
                        </div>
                    </ItemTemplate>
                  </sxt:RepeaterEx>
                </td>
            </tr>
          </table>
        </td>
    </tr>
    <tr style="height:5px"><td></td></tr>
</table>

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;


namespace  SXT.iPowerKit.HairHouse.Web.WebControls
... {
    public partial class LeftMenu : BaseUserControl
    ...{
        protected void Page_Load(object sender, EventArgs e)
        ...{
            this.LoadData();
        }

        public override void LoadData()
        ...{
            this.rptSystemList.DataSource = this.DataSource;
            this.rptSystemList.DataBind();
        }
        public DataSet DataSource
        ...{
            get
            ...{
                try
                ...{
                    DataSet ds = new DataSet(); 
                    //获得当前系统模块所有子模块
                    DataTable dataSource = ((SXT.BLLInterface.ISXTPage)(this.Page)).ModuleDefineConfig;
                    //子系统列表，得到源数据结构
                    DataTable dtSystem = dataSource.Clone();
                    dtSystem.TableName = "ChildSystemList";
                    //父系统列表，得到源数据结构
                    DataTable dtParentSystem = dataSource.Clone();
                    //在源数据结构，获得父级菜单
                    DataRow[] drParentSystem = dataSource.Select("ParentModuleID=''");
                    for (int i = 0; i < drParentSystem.Length; i++)
                    ...{
                        DataRow dr = dtParentSystem.NewRow();
                        dr.ItemArray = drParentSystem[i].ItemArray;
                        dtParentSystem.Rows.Add(dr);
                    }
                    //获得父级菜单个数
                    dtParentSystem.TableName = "ParsentSystemList";
                    dtParentSystem.Columns.Add(new System.Data.DataColumn("Num", typeof(System.Int32)));
                    dtParentSystem.AcceptChanges();
                    for (int i = 0; i < dtParentSystem.Rows.Count; i++)
                    ...{
                        dtParentSystem.Rows[i]["Num"] = i + 1;
                    }

                    //根据父级ModuleID得到所有子系统
                    for (int j = 0; j < dataSource.Rows.Count; j++)
                    ...{
                        DataRow[] drChildSystem = dataSource.Select("ParentModuleID='" + dataSource.Rows[j]["ModuleID"] + "'");
                        for (int k = 0; k < drChildSystem.Length; k++)
                        ...{
                            DataRow drValue = dtSystem.NewRow();
                            drValue.ItemArray = drChildSystem[k].ItemArray;
                            dtSystem.Rows.Add(drValue);
                        }
                    }

                    //将数据放入Table中
                    ds.Tables.Add(dtParentSystem.Copy());
                    ds.Tables.Add(dtSystem.Copy());

                    //ds.Relations.Add("MyRelation", ds.Tables[0].Columns["ModuleID"], ds.Tables[1].Columns["ParentModuleID"]);

                    return ds;
                }
                catch (Exception ex)
                ...{
                    return null;
                }
            }

        }
        /**//// <summary>
        /// 根据父级获得子系统
        /// </summary>
        /// <param name="moduleID">父级ID</param>
        /// <returns></returns>
        public DataTable ChildSystemDataSource(object moduleID)
        ...{
            DataTable dtChild = this.DataSource.Tables[1];
            DataRow[] drChild = dtChild.Select("ParentModuleID='"+moduleID.ToString()+"'");
            dtChild = dtChild.Clone();
            for (int i = 0; i < drChild.Length; i++)
            ...{
                DataRow dr = dtChild.NewRow();
                dr.ItemArray = drChild[i].ItemArray;
                dtChild.Rows.Add(dr);
            }
            return dtChild;
            
        }
        public int Num
        ...{
            get
            ...{
                DataSet ds = this.DataSource;
                if (ds != null)
                ...{
                    return ds.Tables[0].Rows.Count;
                }
                else
                ...{
                    return 0;
                }
            }
        }
    }

}