Repeater绑定dictionary数据源

.aspx页面代码

[html]
asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
        <%# ((KeyValuePair<int, List<User>>)Container.DataItem).Key %> <br />
        <asp:Repeater ID="Repeater2" runat="server" DataSource='<%# ((KeyValuePair<int, List<User>>)Container.DataItem).Value %>'>
            <ItemTemplate>
                <%# (Container.DataItem as User).Id %>
                <%# (Container.DataItem as User).Name %>
            </ItemTemplate>
        </asp:Repeater>
        <hr />
    </ItemTemplate>
</asp:Repeater>

    <asp:Repeater ID="Repeater1" runat="server">
        <ItemTemplate>
            <%# ((KeyValuePair<int, List<User>>)Container.DataItem).Key %> <br />
            <asp:Repeater ID="Repeater2" runat="server" DataSource='<%# ((KeyValuePair<int, List<User>>)Container.DataItem).Value %>'>
                <ItemTemplate>
                    <%# (Container.DataItem as User).Id %>
                    <%# (Container.DataItem as User).Name %>
                </ItemTemplate>
            </asp:Repeater>
            <hr />
        </ItemTemplate>
    </asp:Repeater>

.aspx.cs后置代码

[csharp]
public partial class Temp : System.Web.UI.Page
{
    Dictionary<int, List<User>> dict = new Dictionary<int, List<User>>();

    protected void Page_Load(object sender, EventArgs e)
    {
        dict.Add(1, new List<User>
        {
            new User{Id = 1, Name = "aa"}
            ,new User{Id = 2, Name = "bb"}
        });

        dict.Add(2, new List<User>
        {
            new User{Id = 3, Name = "cc"}
            ,new User{Id = 4, Name = "dd"}
        });

        Repeater1.DataSource = dict;
        Repeater1.DataBind();
    }
}

public class User
{
    public int Id{get;set;}
    public string Name{get;set;}
}

public partial class Temp : System.Web.UI.Page
{
Dictionary<int, List<User>> dict = new Dictionary<int, List<User>>();

    protected void Page_Load(object sender, EventArgs e)
    {
        dict.Add(1, new List<User>
        {
            new User{Id = 1, Name = "aa"}
            ,new User{Id = 2, Name = "bb"}
        });

        dict.Add(2, new List<User>
        {
            new User{Id = 3, Name = "cc"}
            ,new User{Id = 4, Name = "dd"}
        });

        Repeater1.DataSource = dict;
        Repeater1.DataBind();
    }
}

public class User
{
public int Id{get;set;}
public string Name{get;set;}
}

如果报以下错误:

repeater 使用的是无效数据源。有效数据源必须实现 IListSource 或 IEnumerable?

是因为数据源类型问题,比如 DataTable DataSet Xml Arrry 集合
像 String int 对象这样的类型是不能直接作为它的数据源的,尤其要注意对象引起的问题

补充：综合编程 , 其他综合 ,