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  • 主表和子表数据同时在绑定控件显示(示例代码下载)

    (一).显示效果图

             

    (二)代码

       1.前台界面代码:

           <%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="数据绑定控件同时显示主表和子表数据.WebForm1" %>
    <%@ Import Namespace="System.Data" %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
    <HTML>
     <HEAD>
      <title>WebForm1</title>
      <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
      <meta name="CODE_LANGUAGE" Content="C#">
      <meta name="vs_defaultClientScript" content="JavaScript">
      <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
     </HEAD>
     <body MS_POSITIONING="GridLayout">
      <form id="Form1" method="post" runat="server">
       <!-- 绑定主表数据 -->
       <asp:repeater id="myRepeater" runat="server">
        <HeaderTemplate>
         <table border="0" bgcolor="lightblue">
        </HeaderTemplate>
        <ItemTemplate>
         <tr>
          <td style="background-color: lightgray">
           <b>
            <%# DataBinder.Eval(Container.DataItem,"TypeID") %>
            &nbsp;
            <%# DataBinder.Eval(Container.DataItem,"TypeName") %>
           </b>
           <br>
           <!-- 绑定子表数据 -->
           <asp:repeater id="childRepeater" datasource='<%# ((DataRowView)Container.DataItem)
       .Row.GetChildRows("TypeRelation") %>' runat="server">
            <itemtemplate>
             <table border="0" bgcolor="#ffcc33">
              <tr>
               <td>
                &nbsp;&nbsp;
                <%# DataBinder.Eval(Container.DataItem,"[\"TypeID\"]") %>
                &nbsp;
                <%# DataBinder.Eval(Container.DataItem, "[\"TypeDetail\"]")%>
                <br>
               </td>
              </tr>
             </table>
            </itemtemplate>
           </asp:repeater>
          </td>
         </tr>
        </ItemTemplate>
        <FooterTemplate>
         </table>
        </FooterTemplate>
       </asp:repeater>

      </form>
     </body>
    </HTML>

      2. 后代代码

     using System;
    using System.Collections;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Web;
    using System.Web.SessionState;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.HtmlControls;

    namespace 数据绑定控件同时显示主表和子表数据
    {
     /// <summary>
     /// 数据绑定控件同时显示主表和子表数据
     /// </summary>
     public class WebForm1 : System.Web.UI.Page
     {
      protected System.Web.UI.WebControls.Repeater myRepeater;
      private void Page_Load(object sender, System.EventArgs e)
      {
       DataSet ds = new DataSet();
       
       //1.构造主表
       DataTable dtTypeParent=new DataTable();
       dtTypeParent.Columns.Add(new DataColumn("TypeID",typeof(int)));
       dtTypeParent.Columns.Add(new DataColumn("TypeName",typeof(string)));
       //给主表添加两条记录
       DataRow drParent1 = dtTypeParent.NewRow();
       drParent1["TypeID"] = 1; 
       drParent1["TypeName"] = "水果";   
       dtTypeParent.Rows.Add(drParent1);
       DataRow drParent2 = dtTypeParent.NewRow();
       drParent2["TypeID"] = 2; 
       drParent2["TypeName"] = "玩具";
       dtTypeParent.Rows.Add(drParent2);
       dtTypeParent.TableName="TypeParent";   
       dtTypeParent.PrimaryKey = new DataColumn[] {dtTypeParent.Columns["TypeID"]};
       ds.Tables.Add(dtTypeParent);
       
       //2.构造子表
       DataTable dtTypeChild=new DataTable();
       dtTypeChild.Columns.Add(new DataColumn("TypeID",typeof(int)));
       dtTypeChild.Columns.Add(new DataColumn("TypeDetail",typeof(string)));
       //给子表添加五条记录
       DataRow drChild1 = dtTypeChild.NewRow();
       drChild1["TypeID"] = 1; 
       drChild1["TypeDetail"] = "苹果";  
       dtTypeChild.Rows.Add(drChild1);
       DataRow drChild2 = dtTypeChild.NewRow();
       drChild2["TypeID"] = 1; 
       drChild2["TypeDetail"] = "桔子"; 
       dtTypeChild.Rows.Add(drChild2);
       DataRow drChild3 = dtTypeChild.NewRow();
       drChild3["TypeID"] = 1; 
       drChild3["TypeDetail"] = "香蕉";
       dtTypeChild.Rows.Add(drChild3);
       DataRow drChild4 = dtTypeChild.NewRow();
       drChild4["TypeID"] = 2; 
       drChild4["TypeDetail"] = "机器人";
       dtTypeChild.Rows.Add(drChild4);
       DataRow drChild5 = dtTypeChild.NewRow();
       drChild5["TypeID"] = 2; 
       drChild5["TypeDetail"] = "小汽车";
       dtTypeChild.Rows.Add(drChild5);
       dtTypeChild.TableName="TypeChild";  
       ds.Tables.Add(dtTypeChild);

       ds.Relations.Add("TypeRelation",
        ds.Tables["TypeParent"].Columns["TypeID"],
        ds.Tables["TypeChild"].Columns["TypeID"]);
       
       myRepeater.DataSource = ds.Tables["TypeParent"];
       Page.DataBind();      
      }


      #region Web 窗体设计器生成的代码
      override protected void OnInit(EventArgs e)
      {
       //
       // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
       //
       InitializeComponent();
       base.OnInit(e);
      }
      
      /// <summary>
      /// 设计器支持所需的方法 - 不要使用代码编辑器修改
      /// 此方法的内容。
      /// </summary>
      private void InitializeComponent()
      {   
       this.Load += new System.EventHandler(this.Page_Load);
      }
      #endregion
     }
    }

    (三).示例下载

        https://files.cnblogs.com/ChengKing/DataRalationDisplay.rar

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  • 原文地址:https://www.cnblogs.com/Fooo/p/553110.html
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