主表和子表数据同时在绑定控件显示

2022-07-15 80酷酷网 80kuku.com

　　控件|数据|显示

(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">
   
   <asp:repeater id="myRepeater" runat="server">
    <HeaderTemplate>
     <table border="0" bgcolor="lightblue">
    </HeaderTemplate>
    <ItemTemplate>
     <tr>
      <td lightgray">
       <b>
        <%# DataBinder.Eval(Container.DataItem,"TypeID") %>

        <%# DataBinder.Eval(Container.DataItem,"TypeName") %>
       </b>


       
       <asp:repeater id="childRepeater" datasource='<%# ((DataRowView)Container.DataItem)
   .Row.GetChildRows("TypeRelation") %>' runat="server">
        <itemtemplate>
         <table border="0" bgcolor="#ffcc33">
          <tr>
           <td>

            <%# DataBinder.Eval(Container.DataItem,"[\"TypeID\"]") %>

            <%# DataBinder.Eval(Container.DataItem, "[\"TypeDetail\"]")%>


           </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
}
}