Xamarin ASP mvc 4动作,参数不起作用

Question

我有这些行动:

public class HomeController : Controller
    {
        public ActionResult Index ()
        {
            ViewData ["Message"] = "Welcome to ASP.NET MVC on Mono!";
            return View ();
        }


        public ActionResult Pages (string test)
        {
            ViewBag.Message = test;
            return View ();
        }


    }

页面操作无效.我收到错误500:

System.TypeLoadException
Could not load type 'System.Web.UnvalidatedRequestValuesBase' from assembly 'System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.

Description: HTTP 500.Error processing request.

Details: Non-web exception. Exception origin (name of application or object): System.Web.Mvc.
Exception stack trace:
at System.Web.Mvc.FormValueProviderFactory.GetValueProvider (System.Web.Mvc.ControllerContext controllerContext) [0x00000] in <filename unknown>:0 at System.Web.Mvc.ValueProviderFactoryCollection.GetValueProvider (System.Web.Mvc.ControllerContext controllerContext) [0x00000] in <filename unknown>:0 at System.Web.Mvc.ControllerBase.get_ValueProvider () [0x00000] in <filename unknown>:0 at System.Web.Mvc.ControllerActionInvoker.GetParameterValue (System.Web.Mvc.ControllerContext controllerContext, System.Web.Mvc.ParameterDescriptor parameterDescriptor) [0x00000] in <filename unknown>:0 at System.Web.Mvc.ControllerActionInvoker.GetParameterValues (System.Web.Mvc.ControllerContext controllerContext, System.Web.Mvc.ActionDescriptor actionDescriptor) [0x00000] in <filename unknown>:0 at System.Web.Mvc.Async.AsyncControllerActionInvoker+<>c__DisplayClass21.<BeginInvokeAction>b__19 (System.AsyncCallback asyncCallback, System.Object asyncState) [0x00000] in <filename unknown>:0 

如果我从该操作中删除参数工作正常.

有任何想法吗？

提前致谢!

ps我还没有定义任何路线.

Answer 1

使用最新的单声道(3.6.1)无法解决问题. 有用的是: 如果您使用的是5.X NuGet Microsoft ASP.NET MVC软件包,则需要降级到MVC 4.

脚步:

1. 在NuGet包之后卸载(顺序很重要):
   • Microsoft.AspNet.WebPages
   • Microsoft.AspNet.Razor
   • Microsoft.AspNet.Mvc
2. 安装Microsoft ASP.NET MVC 4 NuGet包.

可能发生的错误:

• 未找到"索引"视图或其主页.
  • 解决方案-的变化版本System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc在/Views/Web.Config中factoryType的属性host节点4.0.0.0.所以行看起来像这样:

<host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />

• System.InvalidOperationException检测到的ASP.NET网页的冲突版本:指定版本为"3.0.0.0",但bin中的版本为"2.0.0.0".要继续,请从应用程序的bin目录中删除文件,或删除web.config中的版本规范.
  • 解决方案 - webpages:Version在根目录/ Web.Config中更改为2.0.0.0,如下所示: <add key=”webpages:Version” value=”2.0.0.0” />

然后,您可以在控制器操作中使用参数.