c# - 如何在c#中使用动态语法？

Question

我想把数据源绑定(bind)到GridView，但是不行，因为数据源是动态的，谁能帮帮我？谢谢!

/****c#*** ****/

List<dynamic> dyList = new List<dynamic>();
dynamic info1 = new ExpandoObject();
info1.FFID = 1;
info1.Name = "Bill1";

dynamic info2 = new ExpandoObject();
info2.FFID = 2;
info2.Name = "Bill2";

dyList.Add(info1);
dyList.Add(info2);

Repeater1.DataSource = dyList;
Repeater1.DataBind();

/****aspx*******/

<asp:Repeater ID="Repeater1" runat="server">
        <ItemTemplate>
            <%# Eval("FFID") %> <%# Eval("Name") %>
        </ItemTemplate>
    </asp:Repeater>

找不到 FFid 和 Name，为什么？

Answer 1

也许如果你将元素转换到dynamic

<asp:Repeater ID="Repeater1" runat="server">
    <ItemTemplate>
         <%# ((dynamic)Container.DataItem).FFID %>
     </ItemTemplate>
</asp:Repeater>

或至IDictionary<string, object> . (ExpandoObject 实现了)

<asp:Repeater ID="Repeater1" runat="server">
     <ItemTemplate>
          <%# ((IDictionary<string, object>)Container.DataItem)["FFID"] %>
     </ItemTemplate>
</asp:Repeater>