下面是一个主表和子表关系的示例：
Demo.aspx
<%
@ Page language="c#" Codebehind="Demo.aspx.cs" AutoEventWireup="false" Inherits="ZKSTAT.Demo"
%>
DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
< HTML >
< HEAD >
< title > Demo 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" >
< link href ="Css/stu_css.css" rel ="stylesheet" type ="text/css" >
HEAD >
< body >
< form id ="Form1" method ="post" runat ="server" >
< FONT face ="宋体" > FONT >
< DIV style ="LEFT: 100px; WIDTH: 100%; POSITION: relative; HEIGHT: 100%" ms_positioning ="FlowLayout"
id ="DIV1" runat ="server" > DIV >
form >
body >
HTML >
Demo.aspx.cs
DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
< HTML >
< HEAD >
< title > Demo 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" >
< link href ="Css/stu_css.css" rel ="stylesheet" type ="text/css" >
HEAD >
< body >
< form id ="Form1" method ="post" runat ="server" >
< FONT face ="宋体" > FONT >
< DIV style ="LEFT: 100px; WIDTH: 100%; POSITION: relative; HEIGHT: 100%" ms_positioning ="FlowLayout"
id ="DIV1" runat ="server" > DIV >
form >
body >
HTML >
//
***********************************************************
// *公司：浙江航大科技开发有限公司
// *作者：YK
// *模块：Demo
// *功能：表之间关系添加，导航表间关系
// *创建日期：
// *修改日期：
// ***********************************************************
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;
using System.Data.SqlClient;
using System.Configuration;
using System.Text;
namespace ZKSTAT
{
/**////
/// Demo 的摘要说明。
///
public class Demo : System.Web.UI.Page
{
SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"].ToString());
DataSet ds;
protected System.Web.UI.HtmlControls.HtmlGenericControl DIV1;
StringBuilder stb = new StringBuilder();
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
this.GetData();
}
Web 窗体设计器生成的代码#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);
}
/**////
/// 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。
///
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void GetData()
{
System.Data.SqlClient.SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Customers",con);
System.Data.SqlClient.SqlDataAdapter da1 =new SqlDataAdapter("SELECT * FROM ORDERS",con);
ds= new DataSet();
try
{
con.Open();
//将主表Customer添加到DataSet中
da.Fill(ds,"Customers");
//将子表Orders添加到DataSet中
da1.Fill(ds,"Orders");
//添加表Customer和表Orders之间的关系CustOrder；关联字段CustomerID
ds.Relations.Add("CustOrder",ds.Tables["Customers"].Columns["CustomerID"],ds.Tables["Orders"].Columns["CustomerID"]);
//当建立客户表Customer和订单表Orders之间的 DataRelation 后
//可以使用 DataRow.GetChildRows 检索特定客户行的所有订单行。
foreach (DataRow custRow in ds.Tables["Customers"].Rows)
{
//显示主表Customer记录
stb.Append("
stb.Append("");
");
stb.Append("
stb.Append("");
");
}
this.DIV1.InnerHtml = stb.ToString();
}
catch(Exception ex)
{
throw ex;
}
finally
{
con.Close();
}
}
}
}
// *公司：浙江航大科技开发有限公司
// *作者：YK
// *模块：Demo
// *功能：表之间关系添加，导航表间关系
// *创建日期：
// *修改日期：
// ***********************************************************
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;
using System.Data.SqlClient;
using System.Configuration;
using System.Text;
namespace ZKSTAT
{
/**////
/// Demo 的摘要说明。
///
public class Demo : System.Web.UI.Page
{
SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"].ToString());
DataSet ds;
protected System.Web.UI.HtmlControls.HtmlGenericControl DIV1;
StringBuilder stb = new StringBuilder();
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
this.GetData();
}
Web 窗体设计器生成的代码#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);
}
/**////
/// 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。
///
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void GetData()
{
System.Data.SqlClient.SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Customers",con);
System.Data.SqlClient.SqlDataAdapter da1 =new SqlDataAdapter("SELECT * FROM ORDERS",con);
ds= new DataSet();
try
{
con.Open();
//将主表Customer添加到DataSet中
da.Fill(ds,"Customers");
//将子表Orders添加到DataSet中
da1.Fill(ds,"Orders");
//添加表Customer和表Orders之间的关系CustOrder；关联字段CustomerID
ds.Relations.Add("CustOrder",ds.Tables["Customers"].Columns["CustomerID"],ds.Tables["Orders"].Columns["CustomerID"]);
//当建立客户表Customer和订单表Orders之间的 DataRelation 后
//可以使用 DataRow.GetChildRows 检索特定客户行的所有订单行。
foreach (DataRow custRow in ds.Tables["Customers"].Rows)
{
//显示主表Customer记录
stb.Append("
Customer
");stb.Append("
| CustomerID | ");CompanyName | ");Address | ");City | ");
| "+custRow["CustomerID"].ToString()+" | ");"+custRow["CompanyName"].ToString()+" | ");"+custRow["Address"].ToString()+" | ");"+custRow["City"].ToString()+" | ");
stb.Append("
Order
");stb.Append("
| OrderID | ");OrderDate | ");ShippedDate | ");
| "+orderRow["OrderID"].ToString()+" | ");"+orderRow["OrderDate"].ToString()+" | ");"+orderRow["ShippedDate"].ToString()+" | ");
}
this.DIV1.InnerHtml = stb.ToString();
}
catch(Exception ex)
{
throw ex;
}
finally
{
con.Close();
}
}
}
}
运行结果如下图所示：
