前台页面部分:
<asp:Repeater id="rptCategories" runat="server">
<HeaderTemplate>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
</HeaderTemplate>
<ItemTemplate>
<!--分类名称-->
<tr><th><%# DataBinder.Eval(Container.DataItem, "TypeName") %></th></tr>
<!--分类下的产品-->
<asp:Repeater id="rptProduct" runat="server">
<ItemTemplate>
<tr><td><a href='ProductInfo.aspx?Id=<%# DataBinder.Eval(Container.DataItem, "ID") %>'><%# DataBinder.Eval(Container.DataItem, "ProductName") %></a></td></tr>
</ItemTemplate>
</asp:Repeater>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
后台代码部分(部分代码):
//在绑定分类品名时,绑定分类下的产品
private void rptCategories_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
{
BLL.Products products =new BLL.Products();
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Repeater rptProduct = (Repeater) e.Item.FindControl("rptProduct");
//找到分类Repeater关联的数据项
DataRowView rowv = (DataRowView)e.Item.DataItem;
//提取分类ID
int CategorieId = Convert.ToInt32(rowv["ID"]);
//根据分类ID查询该分类下的产品,并绑定产品Repeater
rptProduct.DataSource = products.GetProductsByCategorieId(CategorieId);
rptProduct.DataBind();
}
}
另一种方法:
前台:
<!-- 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 -->
后台:public partial class NestedRepeater : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Repeater childRepeater;//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=.;database=pubs; user id=sa;pwd=;");
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);
}
}