DataList 中的 DataList 绑定的问题？

Question

我要怎么获得第二个DataList并为它赋值了？
<asp:DataList ID="dl_action" runat="server" width="99%">
                    <ItemTemplate>
                        <table style="width:100%;" width="99%">
                            <tr>
                                <td rowspan="3" style="width:15%">
                                    <asp:Label ID="Label4" runat="server" Text="您的好友:"></asp:Label><br />
                                    <asp:Label ID="lab_userId" runat="server" Text='<%# Eval("UserId") %>'></asp:Label><br />
                                </td>
                                <td>
                                    <asp:DataList ID="dl_info" runat="server" style="width:100%;">
                                        <ItemTemplate>
                                            <table style="width:100%;">
                                                <tr>
                                                    <td colspan="3">
                                                        <asp:Label ID="lab_time" runat="server" Text='<%# Eval("date") %>'></asp:Label>
                                                        <asp:Label ID="lab_ActionType" runat="server" 
                                                            Text='<%# getActionType(Convert.ToInt32(DataBinder.Eval(Container.DataItem,"type"))) %>'></asp:Label>
                                                        <asp:Label ID="Label1" runat="server" Text="了他的"></asp:Label>
                                                        <asp:Label ID="lab_ObjType" runat="server" 
                                                            Text='<%# getObjType(Convert.ToInt32(DataBinder.Eval(Container.DataItem,"objtype"))) %>'></asp:Label>
                                                    </td>
                                                </tr>
                                                <tr>
                                                    <td colspan="3">
                                                        <a href='<%# Eval("hear") %>'><asp:Label ID="lab_title" runat="server" Text='<%# Eval("title") %>'></asp:Label></a>
                                                    </td>
                                                </tr>
                                            </table>
                                        </ItemTemplate>
                                    </asp:DataList>
                                </td>
                                <td></td>
                            </tr>
                        </table>
                    </ItemTemplate>
                </asp:DataList>

Answer 1

protected void 外层_ItemDataBound(object sender, DataListItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) 
{
string keyid = this.外层.DataKeys[e.Item.ItemIndex].ToString();
DataList dls = (DataList)e.Item.FindControl("内嵌ID");
if (dls != null) 
{
//dls.DataBind();
}
}
}

Answer 2

同上，在最外面的datalist的itemdatabound事件中写下一层datalist吧绑定数据不过注意楼上的方法可能需要你设置datalist的key***属性！！！

Answer 3

e.Item.ItemIndex 老说我的索引超出范围   是怎么回事啊！！

Answer 4

if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) 
            {
-----------
你是不是忘记加这个条件了？

Answer 5

做过，第一种方法就行啊，
需要设置datakeynames属性吧

Answer 6

private void dl_action_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
        {
                if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) 
            {
                  DataList   dl = null;
                  dl = (DataList)e.Item.FindControl("dl_info")
              　DataSet ds=new DataList();
              .....
　　　　　　　　  dl.DataSource =ds;
                dl.DataBind();
              }
        }
参考

Answer 7

private void dl_action_ItemDataBound(object sender, System.Web.UI.WebControls.DataListItemEventArgs e)
        {
                if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem) 
            {
                  DataList   dl = null;
                  dl = (DataList)e.Item.FindControl("dl_info")
              　DataSet ds=new DataList();
              .....
　　　　　　　　  dl.DataSource =ds;
                dl.DataBind();
              }
        }
参考

Answer 8

可以这样做：
 if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.EditItem)
        {
            int id = Convert.ToInt32(DataList1.DataKeys[e.Item.ItemIndex]);
            System.Web.UI.WebControls.DataList dl2;
            dl_info = (DataList)e.Item.FindControl("dl_info");
            string strWhere = " bcid=" + id + "";
            DataSet ds = dalaw.GetList(strWhere);
            dl_info.DataSource = ds.Tables[0].DefaultView;
            dl_info.DataBind();
        }