本文描述了如何把Repeater 控件嵌套进DataGrid来显示分级的数据 。当然，你也可以将这一技术应用到其他的列表绑定控件上去，比如DataGrid包含DataGrid，DataList包含DataList等等的组合。
完整的代码 如下，要注意的是,
DataGrid1.DataSource=dv;
DataGrid1.DataBind();
一定要在ds.Relations.Add(..)之后..
< %@import namespace="System.Data" %>
< %@import namespace="System.Data.OleDb"%>
1<script language="c#" runat="server">
2string connstr=ConfigurationSettings.AppSettings["ConnectionString"];
3
4//小区信息
5string sql="select * from location where location_id in(select location from catalyst)";
6//交换机信息
7string sqltext="select * from catalyst order by location desc";
8
9private void page_load(Object obj,EventArgs e)
10{
11if(!Page.IsPostBack)
12{
13Dataload();
14}
15}
16
17private void Dataload()
18{
19try
20{
21OleDbConnection conn=new OleDbConnection(connstr);
22DataSet ds=new DataSet();
23OleDbDataAdapter da=new OleDbDataAdapter(sql,conn);
24da.Fill(ds,"location");
25DataView dv=new DataView(ds.Tables["location"]);
26
27OleDbDataAdapter da2=new OleDbDataAdapter(sqltext,conn);
28da2.Fill(ds,"catalyst");
29ds.Relations.Add("myrelation",ds.Tables["location"].Columns["location_id"],ds.Tables["catalyst"].Columns["location"]);
30
31DataGrid1.DataSource=dv;
32DataGrid1.DataBind();
33
34conn.Close();
35}
36catch(OleDbException ex)
37{
38info.Text=ex.Message;
39}
40}
41</script>
1<html>
2<body>
3<form runat="server">
4<asp:datagrid autogeneratecolumns="false" id="DataGrid1" runat="server">
5<columns>
6<asp:templatecolumn headertext="小区名">
7<itemtemplate>
DataBinder.Eval(Container.DataItem,"location_name")
1</itemtemplate>
2</asp:templatecolumn>
3<asp:templatecolumn headertext="交换机编号">
4<itemtemplate>
5<asp:repeater datasource='```
6# ((DataRowView)Container.DataItem).Row.GetChildRows("myrelation")
7```' id="ChildRepeater" runat="server">
8<itemtemplate>
Container.ItemIndex+1
.
DataBinder.Eval(Container.DataItem, "["label"]")
1</itemtemplate>
2</asp:repeater>
3</itemtemplate>
4</asp:templatecolumn>
5</columns>
6</asp:datagrid>
7</form>
8<asp:label forecolor="blue" id="info" runat="server"></asp:label>
9</body>
10</html>