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每当我尝试以中等信任度运行我的项目时，我都会收到此异常。该项目是 MVC 论坛，尽管我不需要以中等信任度运行我自己的任何网站，但我认为我最好让它在中等信任度环境中运行。

我正在为 DI 使用 Ninject（在中等信任下工作的 DLL），并且可以正常工作 - MVC 控制器按预期加载了构造函数注入。

“有趣”的事情是失败的方法（在我的代码中）采用 2 个参数，这些都是使用实体框架从数据库中加载的，所以我不知道为什么会失败，当实体框架显然已经在其他部分工作时的代码。

这个异常背后的原因是什么？这就像大海捞针一样。

这是堆栈跟踪：

[SecurityException: Request for the permission of type 'System.Security.Permissions.ReflectionPermission, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
   System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
   System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission cap, StackCrawlMark& stackMark) +31
   System.Security.CodeAccessPermission.Demand() +46
   System.Data.Common.Internal.Materialization.Translator.DemandMemberAccess() +50
   System.Data.Common.Internal.Materialization.Shaper`1..ctor(DbDataReader reader, ObjectContext context, MetadataWorkspace workspace, MergeOption mergeOption, Int32 stateCount, CoordinatorFactory`1 rootCoordinatorFactory, Action checkPermissions, Boolean readerOwned) +165
   System.Data.Common.Internal.Materialization.ShaperFactory`1.Create(DbDataReader reader, ObjectContext context, MetadataWorkspace workspace, MergeOption mergeOption, Boolean readerOwned) +93
   System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute(ObjectContext context, ObjectParameterCollection parameterValues) +736
   System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption) +149
   System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator() +44
   System.Linq.Enumerable.FirstOrDefault(IEnumerable`1 source) +182
   System.Data.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__1(IEnumerable`1 sequence) +41
   System.Data.Objects.ELinq.ObjectQueryProvider.ExecuteSingle(IEnumerable`1 query, Expression queryRoot) +59
   System.Data.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute(Expression expression) +150
   System.Data.Entity.Internal.Linq.DbQueryProvider.Execute(Expression expression) +102
   System.Linq.Queryable.FirstOrDefault(IQueryable`1 source) +265
   ApplicationBoilerplate.DataProvider.EntityFramework.Repository`1.ReadOne(ISpecification`1 spec) +217
   mvcForum.Web.Extensions.ForumExtensions.GetAccess(Forum forum, Group group) +129
   mvcForum.Web.Extensions.ForumExtensions.GetAccess(Forum forum) +895
   mvcForum.Web.ViewModels.ForumViewModel..ctor(Forum forum, Int32 topicsPerPage) +1353
   mvcForum.Web.Areas.Forum.Controllers.HomeController.Index() +1260
   lambda_method(Closure , ControllerBase , Object[] ) +74
   System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +208
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
   System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +55
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
   System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
   System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
   System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
   System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +191
   System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +343
   System.Web.Mvc.Controller.ExecuteCore() +116
   System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97
   System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
   System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +37
   System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
   System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
   System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +50
   System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
   System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8970061
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

小更新，我先使用代码。感谢您的关注！

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1 回答 1

1

如果您的实体类包含非公共属性（即它们是内部的、受保护的或私有的），这看起来就像您遇到的异常。EF5 及更低版本仅支持在部分信任环境中运行时映射到公共属性。

于 2012-07-19T19:58:17.190 回答