InputBuilder's PartialView("My") doesn't work

my viewmodel

public class CaseCreateInput
    {

        [PartialView("My")]
        public object AreaId { get; set; }
}

My.aspx partialview

<%@ Page Title="" Language="C#" MasterPageFile="Field.Master" 
Inherits="System.Web.Mvc.ViewPage<Pr开发者_如何学编程opertyViewModel<object>>" %>
<%@ Import Namespace="MvcContrib.UI.InputBuilder.Views"%>

<asp:Content ID="Content1" ContentPlaceHolderID="Label" runat="server"><label for="<%=Model.Name%>"><%=Model.Label%></label></asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="Input" runat="server">
<%=Html.DropDownList(Model.Name,Model.Value as IEnumerable<SelectListItem>)%></asp:Content>

and when I do

Html.Input(o => o.AreaId) it's actually looking for the Guid.aspx instead of looking for My.aspx from \views\shared

---

The problem seems to be coming from the fact that the AreaId property is of type object. For example if you change it to string it works fine.

---

I guess that the file My must be .ascx and not .aspx. It doesn't?

---

I switched to mvc 2 Templated Helpers, now it works