中等信任，ninject和實體框架的安全異常

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每當我嘗試在中等信任下運行我的項目時，我總是收到此異常。該項目是MVC論壇，即使我不需要以中等信任運行我自己的任何站點，但我認爲我最好讓它在中等信任環境中工作。中等信任，ninject和實體框架的安全異常

我正在使用Ninject for DI（在中等信任下工作的DLL），並且工作正常 - MVC控制器按預期加載了構造函數注入。「有趣」的事情是，失敗的方法（在我的代碼中）取2個參數，這些都是使用實體框架從數據庫加載的，所以我不知道爲什麼這會失敗，當實體框架已經明確在代碼的其他部分工作。

這個例外背後的原因是什麼？這就像在大海撈針中尋找着名的針。

這裏的堆棧跟蹤：

[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，我使用的代碼第一。感謝您的期待！

來源

2012-07-10 Steen Tøttrup