使用巢狀 Repeater 控制元件和 Visual C# .Net 顯示分層資料
出自微軟的官方Repeater巢狀例項。此例簡單易懂，適合初步學習和擴充套件試驗。
完整程式碼列表
Nestedrepeater.aspx
<%@ Page language="c#" Codebehind="NestedRepeater.aspx.cs" AutoEventWireup="false" Inherits="NestedRepeater.NestedRepeater" %> <%@ Import Namespace="System.Data" %> <html> <body> <form runat=server> <!-- start parent repeater --> <asp:repeater id="parentRepeater" runat="server"> <itemtemplate> <b><%# DataBinder.Eval(Container.DataItem,"au_id") %></b><br> <!-- start child repeater --> <asp:repeater id="childRepeater" datasource='<%# ((DataRowView)Container.DataItem) .Row.GetChildRows("myrelation") %>' runat="server"> <itemtemplate> <%# DataBinder.Eval(Container.DataItem, "[/"title_id/"]")%><br> </itemtemplate> </asp:repeater> <!-- end child repeater --> </itemtemplate> </asp:repeater> <!-- end parent repeater --> </form> </body> </html>
Nestedrepeater.aspx.cs
using System; using System.Data; using System.Data.SqlClient; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls; namespace NestedRepeater { public class nestedrepeater :System.Web.UI.Page { protected System.Web.UI.WebControls.Repeater parentRepeater; public NestedRepeater() { Page.Init += new System.EventHandler(Page_Init); } public void Page_Load(object sender, EventArgs e) { //Create the connection and DataAdapter for the Authors table. SqlConnection cnn = new SqlConnection("server=(local);database=pubs; Integrated Security=SSPI ;"); SqlDataAdapter cmd1 = new SqlDataAdapter("select * from authors",cnn); //Create and fill the DataSet. DataSet ds = new DataSet(); cmd1.Fill(ds,"authors"); //Create a second DataAdapter for the Titles table. SqlDataAdapter cmd2 = new SqlDataAdapter("select * from titleauthor",cnn); cmd2.Fill(ds,"titles"); //Create the relation bewtween the Authors and Titles tables. ds.Relations.Add("myrelation", ds.Tables["authors"].Columns["au_id"], ds.Tables["titles"].Columns["au_id"]); //Bind the Authors table to the parent Repeater control, and call DataBind. parentRepeater.DataSource = ds.Tables["authors"]; Page.DataBind(); //Close the connection. cnn.Close(); } private void Page_Init(object sender, EventArgs e) { InitializeComponent(); } private void InitializeComponent() { this.Load += new System.EventHandler(this.Page_Load); } } }