Repeater嵌套使用实例

Repeater嵌套前台页面部分：

CODE:

<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）：

CODE:

//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：

CODE:

<!-- 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：

CODE:

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();//51aspx.com
    }
    private void Page_Init(object sender, EventArgs e)
    {
        InitializeComponent();
    }
    private void InitializeComponent()
    {
        this.Load += new System.EventHandler(this.Page_Load);
    }
}