二级联动菜单

最新推荐文章于 2025-06-06 10:09:16 发布

原创最新推荐文章于 2025-06-06 10:09:16 发布 · 663 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#border #table #数据结构 #dataset #assembly #server

本文介绍了一个用于 ASP.NET 的左侧菜单组件的设计与实现细节。该组件使用 C# 编写，通过 Repeater 控件展示系统模块及子模块，并支持折叠与展开功能。文章详细解释了数据绑定过程及 JavaScript 函数如何控制菜单项的状态。

<%@ 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" %>

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>

<tr>

<tr>

<sxt:RepeaterEx ID="rptSystemList" runat="server">

<%--<div style='display:<%# GetAdminStyle(Eval("systemID").ToString())%>'>--%>

<tr>

<tr>

</tr>

</table>

</td>

</tr>

</table>

<div class='<%# Convert.ToInt32(Eval("Num"))>1?"collapsed":"expanded" %>' id='<%#Eval("Num") %>ALL'>

<sxt:RepeaterEx ID="rptChildList" runat="server" datasource='<%# ChildSystemDataSource(Eval("moduleID"))%>'>

<tr>

<tr>

</tr>

</table>

</td>

<td width="130"> <a href='<%# Eval("ModuleUrl") %>' class="content"><%# Eval("ModuleName") %></a>

</td>

</tr>

</ItemTemplate>

</sxt:RepeaterEx>

</table>

</div>

</ItemTemplate>

</sxt:RepeaterEx>

</td>

</tr>

</table>

</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;

}