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  • ASP.NET中 Repeater嵌套

     1 View Code 
     2 
     3 using System.Collections.Generic;
     4 public class CategoryInfo
     5 {
     6     int categoryid;
     7     string categoryname;
     8     string categorydesc;
     9     IList<ArticleInfo> articles;
    10 
    11     /// <summary>
    12     /// 1,子嵌套数据
    13     /// </summary>
    14     public IList<ArticleInfo> Articles
    15     {
    16         get { return articles; }
    17         set { articles = value; }
    18     }
    19 
    20     public int Categoryid
    21     {
    22         get { return categoryid; }
    23         set { categoryid = value; }
    24     }
    25 
    26     public string Categoryname
    27     {
    28         get { return categoryname; }
    29         set { categoryname = value; }
    30     }
    31 
    32     public string Categorydesc
    33     {
    34         get { return categorydesc; }
    35         set { categorydesc = value; }
    36     }
    37 
    38     public CategoryInfo()
    39     {
    40 
    41     }
    42 
    43     public CategoryInfo(int categoryid, string categoryname, string categorydesc,IList<ArticleInfo> articles)
    44     {
    45         this.categoryid = categoryid;
    46         this.categoryname = categoryname;
    47         this.categorydesc = categorydesc;
    48         this.articles = articles;
    49     }
    50 }
     1 View Code 
     2 
     3 using System.Data;
     4 
     5 using System.Data.SqlClient;
     6 using System.Collections.Generic;
     7 public class CategoryOper
     8 {
     9     public static IList<CategoryInfo> SelectAll()
    10     {
    11         IList<CategoryInfo> allcate = new List<CategoryInfo>();
    12         string sql = "select category.categoryid,categoryname,categorydesc,id,title,author from category inner join article on category.categoryid=article.categoryid order by category.categoryid";
    13 
    14         SqlConnection con = new DBConnection().Con;
    15         SqlCommand com = new SqlCommand();
    16         com.Connection = con;
    17         com.CommandText = sql;
    18         com.CommandType = CommandType.Text;
    19 
    20         con.Open();
    21         SqlDataReader sdr = com.ExecuteReader();
    22         int tempcategoryid=0;
    23         CategoryInfo cate=null;
    24         while (sdr.Read())
    25         {
    26             int categoryid=sdr.GetInt32(0);
    27 
    28             //如果类别改变则创建一个新的 cate 对象
    29             if(categoryid!=tempcategoryid)
    30             {
    31                 cate = new CategoryInfo(sdr.GetInt32(0), sdr.GetString(1), sdr.GetString(2), new List<ArticleInfo>());
    32                 allcate.Add(cate);  
    33                 tempcategoryid = categoryid;    //把新类别编号付给标识
    34             }
    35 
    36             ArticleInfo art = new ArticleInfo(sdr.GetInt32(3), sdr.GetString(4), sdr.GetString(5));
    37             cate.Articles.Add(art);
    38         }
    39         con.Close();
    40         return allcate;
    41 
    42     }
    43     public CategoryOper()
    44     {
    45         //
    46         // TODO: 在此处添加构造函数逻辑
    47         //
    48     }
    49 }
    View Code 
    
    <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
    
    <!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>
    </head>
    <body>
        <form id="form1" runat="server">
        <div style="text-align:center">        
        
            <asp:Repeater ID="RepCate" runat="server">
                <HeaderTemplate>
                    <table border="1">
                        <tr>
                            <td>分类编号</td>
                            <td>分类名称</td>
                            <td>分类描述</td>
                        </tr>                
                </HeaderTemplate>
                <ItemTemplate>
                        <tr>
                            <td><%#Eval("categoryid") %></td>
                            <td><%#Eval("categoryname") %></td>
                            <td><%#Eval("categorydesc") %></td>
                        </tr>
                        <tr>
                            <td>本类新闻</td>
                            <td colspan="2">
                            
                                <asp:Repeater ID="RepArticle" runat="server" DataSource='<%#Eval("articles") %>' >
                                    <HeaderTemplate>
                                        <table border="1" style="background-color:#00FF00;">
                                            <tr>
                                                <td>新闻编号</td>
                                                <td>新闻标题</td>
                                                <td>新闻作者</td>
                                            </tr>
                                    </HeaderTemplate>
                                    <ItemTemplate>
                                            <tr>
                                                <td><%#Eval("id") %></td>
                                                <td>
                                                    <asp:HyperLink ID="Hl1" runat="server" Text='<%#Eval("title") %>' NavigateUrl='<%#string.Format("ShowArticle.aspx?id={0}",Eval("id") ) %>' ></asp:HyperLink> 
                                                </td>
                                                <td><%#Eval("author") %></td>
                                            </tr>
                                    </ItemTemplate>
                                    <FooterTemplate>
                                        </table>
                                    </FooterTemplate>
                                </asp:Repeater>
                                
                                
                            </td>
                        </tr>
                </ItemTemplate>
                <FooterTemplate>
                    </table>
                </FooterTemplate>
            </asp:Repeater>
            
            
        </div>
        </form>
    </body>
    </html>
     1 View Code 
     2 
     3 using System;
     4 
     5 public partial class _Default : System.Web.UI.Page 
     6 {
     7     private void BindCategory()
     8     {
     9         RepCate.DataSource = CategoryOper.SelectAll();
    10         RepCate.DataBind();
    11     }
    12     protected void Page_Load(object sender, EventArgs e)
    13     {
    14         if (!IsPostBack)
    15         {
    16             BindCategory();
    17         }
    18     }
    19 }
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  • 原文地址:https://www.cnblogs.com/existcQ/p/2952620.html
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