ASP.NET中repeater嵌套实现代码(附源码)

using System.Collections.Generic;
public class CategoryInfo
{
int categoryid;
string categoryname;
string categorydesc;
IList articles;
///

/// 1,子嵌套数据
///

public IList Articles
{
get { return articles; }
set { articles = value; }
}
public int Categoryid
{
get { return categoryid; }
set { categoryid = value; }
}
public string Categoryname
{
get { return categoryname; }
set { categoryname = value; }
}
public string Categorydesc
{
get { return categorydesc; }
set { categorydesc = value; }
}
public CategoryInfo()
{
}
public CategoryInfo(int categoryid, string categoryname, string categorydesc,IList articles)
{
this.categoryid = categoryid;
this.categoryname = categoryname;
this.categorydesc = categorydesc;
this.articles = articles;
}
}

using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
public class CategoryOper
{
public static IList SelectAll()
{
IList allcate = new List();
string sql = "select category.categoryid,categoryname,categorydesc,id,title,author from category inner join article on category.categoryid=article.categoryid order by category.categoryid";
SqlConnection con = new DBConnection().Con;
SqlCommand com = new SqlCommand();
com.Connection = con;
com.CommandText = sql;
com.CommandType = CommandType.Text;
con.Open();
SqlDataReader sdr = com.ExecuteReader();
int tempcategoryid=0;
CategoryInfo cate=null;
while (sdr.Read())
{
int categoryid=sdr.GetInt32(0);
//如果类别改变则创建一个新的 cate 对象
if(categoryid!=tempcategoryid)
{
cate = new CategoryInfo(sdr.GetInt32(0), sdr.GetString(1), sdr.GetString(2), new List());
allcate.Add(cate);
tempcategoryid = categoryid; //把新类别编号付给标识
}
ArticleInfo art = new ArticleInfo(sdr.GetInt32(3), sdr.GetString(4), sdr.GetString(5));
cate.Articles.Add(art);
}
con.Close();
return allcate;
}
public CategoryOper()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

分类编号	分类名称	分类描述
<%#Eval("categoryid") %>	<%#Eval("categoryname") %>	<%#Eval("categorydesc") %>
本类新闻	新闻编号 新闻标题 新闻作者 <%#Eval("id") %> <%#Eval("author") %>

using System;
public partial class _Default : System.Web.UI.Page
{
private void BindCategory()
{
RepCate.DataSource = CategoryOper.SelectAll();
RepCate.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindCategory();
}
}
}