我已经看过了"Subsonic 5分钟演示“,在一些初始问题之后,我从数据库中获得了生成的数据对象。我使用的是Visual Web Developer Express 2010,我的项目是一个ASP.NET MVC2 Web应用程序。
因此,我在我的HomeController中编写了以下代码:
public ActionResult Index()
{
ViewData["Message"] = "Welcome to Food Recipe Web!";
//lets get some data
var db = new FoodRecipeWeb.Data.FoodRecipeWebDB();
var recipes = from r in db.Recipes
select r;
return View(recipes);
}我的视图如下所示:
<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>
<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
Home Page
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2><%: ViewData["Message"] %></h2>
<ul>
<%foreach (var recipe in Model)
{ %>
<li><%= recipe.Name %></li>
<% } %>
</ul>
</asp:Content>这很像演示,但当我尝试查看页面时,我得到了这样的消息:
Compiler Error Message: CS1579: foreach statement cannot operate on variables of type 'object' because 'object' does not contain a public definition for 'GetEnumerator'
Source Error:
Line 6: <h2><%: ViewData["Message"] %></h2>
Line 7: <ul>
Line 8: <%foreach (var recipe in Model)
Line 9: { %>
Line 10: 那么我到底做错了什么呢?
发布于 2011-02-13 02:34:52
您的视图需要了解模型。
将其更改为:
Inherits="System.Web.Mvc.ViewPage"
Inherits="System.Web.Mvc.ViewPage<IEnumerable<Recipe>>"https://stackoverflow.com/questions/4978869
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