嵌套datalist对应分类列表

前台：

<asp:DataList ID="DataList1" runat="server" OnItemDataBound="DataList1_ItemDataBound">
        <ItemTemplate>
            <table width="500px">
                <tr>
                    <td style="background-color: #194477; color: White; height: 35px;">
                        <%# Eval("cateName") %>
                    </td>
                </tr>
                <tr>
                    <td>
                        <asp:DataList ID="DataList2" runat="server">
                            <ItemTemplate>
                                <%# Eval("btitle") %>
                            </ItemTemplate>
                        </asp:DataList>
                    </td>
                </tr>
            </table>
        </ItemTemplate>
    </asp:DataList>

 后台：

DataAccess d = new DataAccess();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            bind();
        }
    }
    public void bind()
    {
        DataList1.DataSource = d.getDataSet("select cateName from tb_cate where bigCate='人文关怀'", false);
        DataList1.DataBind();
    }
    protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
    {
        DataList d2 = (DataList)e.Item.FindControl("DataList2");
        DataRowView drv = (DataRowView)e.Item.DataItem;
        object cate = drv["cateName"];
        if (cate != null)
        {
            d2.DataSource = d.getDataSet("select distinct btitle from tb_video where cateName='" + cate.ToString() + "'", false);
            d2.DataBind();
        }
    }

显示效果