用DATaGrid实现一对多的关系
点击次数：19 次 发布日期：2008-11-06 08:11:01 作者：源代码网
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 ; namespace bns.Test { /// <summary> /// test 的摘要说明。 /// </summary> public class test : System.Web.UI.Page { protected System.Web.UI.WebControls.DataGrid DataGrid1; public string connstring="server=.;uid=sa;pwd=tianpeng;database=northwind"; private void Page_Load(object sender, System.EventArgs e) { // 在此处放置用户代码以初始化页面 SqlConnection OrdersConnection =new SqlConnection (connstring); OrdersConnection.Open (); SqlDataAdapter OrderAdapter =new SqlDataAdapter("Select * from Orders; select * from [Order Details]", OrdersConnection); DataSet ds=new DataSet(); OrderAdapter.Fill (ds); ds.Tables [0].TableName ="Orders"; ds.Tables [1].TableName ="OrderDetails"; DataColumn Parent; Parent=ds.Tables["Orders"].Columns["OrderId"]; DataColumn Child; Child=ds.Tables["OrderDetails"].Columns ["OrderId"]; DataRelation OrderRelation=new DataRelation("OrderRelation",Parent,Child,false); ds.Relations.Add(OrderRelation); DataGrid1.DataSource =ds.Tables["Orders"].DefaultView; 软件开发网 www.mscto.com DataGrid1.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 } } Test.aspx <%@ Page language="c#" Codebehind="test.aspx.cs" AutoEventWireup="false" Inherits="bns.Test.test" %> <%@ Import NameSpace="System.Data"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <HTML> <HEAD> <title>test</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:DataGrid id="DataGrid1" BorderColor="#0099FF" runat="server" ShowHeader="False" Width="470px" CellPadding="0" CellSpacing="0" AutoGenerateColumns="False" BorderWidth="2px"> <Columns> <asp:TempLateColumn> <ItemTemplate> <table cellspacing="0" cellpadding="0" width="100%" border="0"> <tr> <td bgcolor="#ff6600"><b>订单号<%# DataBinder.Eval(Container.DataItem,"orderid")%></b></td> </tr> <tr> <td align="right"> <asp:DataGrid ID =DataGrid2 Runat =server AutoGenerateColumns =false BorderColor="#33FF33" DataKeyField="OrderID" DataSource="<%# ((DataRowView)Container.DataItem).CreateChildView("OrderRelation") %>"> <columns> <asp:BoundColumn Visible="False" DataField="OrderID" ReadOnly="True"></asp:BoundColumn> <asp:TemplateColumn HeaderText="产品名称"> <HeaderStyle Width="300px"></HeaderStyle> <ItemTemplate> <%# DataBinder.Eval(Container.DataItem,"ProductID")%> </ItemTemplate> </asp:TemplateColumn> <asp:BoundColumn DataField="UnitPrice" HeaderText="单价"></asp:BoundColumn> <asp:BoundColumn DataField="Quantity" HeaderText="数量"></asp:BoundColumn> <asp:BoundColumn DataField="Discount" HeaderText="折扣"></asp:BoundColumn> </columns> </asp:DataGrid> </td> </tr> </table> </ItemTemplate> </asp:TempLateColumn> </Columns> </asp:DataGrid></FONT> </form> </body> </HTML> 源代码网推荐 源代码网供稿. |
