我有一个部分观点:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<DomainModel.Entities.Product>" %>
<div class="item">
<h3><%= Model.Name %></h3>
<%= Model.Description %>
<% using (Html.BeginForm("AddToCart", "Cart")) { %>
<%= Html.Hidden("ProductID") %>
<%= Html.Hidden("returnUrl", ViewContext.HttpContext.Request.Url.PathAndQuery) %>
<input type="submit" value="+ Add to cart" />
<% } %>
<h4><%= Model.Price.ToString("c")%></h4>
</div>
以下是渲染的html:
<div class="item">
<h3>Kayak</h3>
A boat for one person
<form action="" method="post">
<input id="ProductID" name="ProductID" type="hidden" value="1" />
<input id="returnUrl" name="returnUrl" type="hidden" value="/" />
<input type="submit" value="+ Add to cart" />
</form>
<h4>$275.00</h4>
</div>
单击提交按钮时没有任何反应,我很确定这是因为表单操作属性没有值。 BeginForm(动作,控制器)不应该处理渲染表单动作吗?我做错了什么?
来自CartController的代码AddToCart动作:
public RedirectToRouteResult AddToCart(Cart cart, int productID, string returnUrl)
{
Product product = productsRepository.Products.FirstOrDefault(p => p.ProductID == productID);
cart.AddItem(product, 1);
return RedirectToAction("Index", new { returnUrl });
}
呈现部分的视图:
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<% foreach (var product in Model) { %>
<% Html.RenderPartial("ProductSummary", product); %>
<% } %>
<div class="pager">
Page:
<%=Html.PageLinks((int)ViewData["CurrentPage"],
(int)ViewData["TotalPages"],
x => Url.Action("List", new { page = x, category = ViewData["CurrentCategory"] })) %>
</div>
</asp:Content>
路线:
public static void RegisterRoutes(RouteCollection routes)
{
routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
routes.MapRoute(
null, // don't need a name
"", // matches the root URL, i.e. ~/
new { controller = "Products", action = "List", category = (string)null, page = 1 } //Defaults
);
routes.MapRoute(
null, // don't need name
"Page{page}", // URL pattern, e.g. ~/Page683
new { controller = "Products", action = "List", category = (string)null }, // defaults
new { page = @"\d+" } // constraints: page must be numerical
);
routes.MapRoute(null,
"{category}",
new { controller = "Products", action = "List", page = 1 });
routes.MapRoute(null,
"{category}/Page{page}",
new { controller = "Products", action = "List" },
new { page = @"\d+" } // constraints: page must be numerical
);
}
答案 0 :(得分:15)
看起来您没有设置默认路线。 BeginForm
使用UrlHelper.GenerateUrl
将操作/控制器名称与路径集合相匹配。因此,如果您没有映射到AddToCart
的路由,则无法为其生成URL。尝试将其添加到路线的底部:
routes.MapRoute(
"Default",
"{controller}/{action}/{id}",
new { controller = "Products", action = "List", id = "" }
);
答案 1 :(得分:0)
这是Steven Sanderson出色的“Pro ASP MVC框架”一书中使用的主要应用示例。
有趣的是,我犯了完全相同的错误,并省略了第130页上的清单中给出的最终.MapRoute调用。
routes.MapRoute("Default", "controller}/{action}"
Johnny G对这篇文章的回答帮助我找到了我的错误。
好一个约翰尼!