ASP.Net MVC 3 EF4.1代码优先 - 不支持每种类型的多个对象集

我想使用单元测试的EF 4.1代码优先模式。我遵循This Post的答案中说明的代码示例。但是现在我收到一个错误，指出“不支持多个对象集每种类型”。我也在使用IoC的最新结构图。我不知道如何解决这个问题。ASP.Net MVC 3 EF4.1代码优先 - 不支持每种类型的多个对象集

支持每种类型的多个对象集不是。对象集 'MemberTypes'和'MemberTypes'可以都包含 'SocialSite.Model.Entities.MemberType'类型的实例。

Line 82: public virtual IEnumerable<T> FindAll() 
Line 83: { 
Line 84:  return _dbSet.ToList(); 
Line 85: } 
Line 86: 

[InvalidOperationException: Multiple object sets per type are not supported. The  object sets 'MemberTypes' and 'MemberTypes' can both contain instances of type  'SocialSite.Model.Entities.MemberType'.] 
    System.Data.Entity.Internal.DbSetDiscoveryService.RegisterSets(DbModelBuilder  modelBuilder) +336 
    System.Data.Entity.Internal.LazyInternalContext.CreateModelBuilder() +393 
    System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext  internalContext) +22 
    System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input) +117 
    System.Data.Entity.Internal.LazyInternalContext.InitializeContext() +407 
    System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +17 
    System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +62 
    System.Data.Entity.Internal.Linq.InternalSet`1.GetEnumerator() +15 
    System.Data.Entity.Infrastructure.DbQuery`1.System.Collections.Generic.IEnumerable<TResult>.GetEnumerator() +40 
    System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +315 
    System.Linq.Enumerable.ToList(IEnumerable`1 source) +58 
    SocialSite.Data.Repositories.Impl.Repository`1.FindAll() in D:\Visual Studio 2010\SocialSite\SocialSite.Data\Repositories\Impl\Repository.cs:84 
    SocialSite.Service.Impl.MemberTypesService.GetMemberTypes() in D:\Visual Studio 2010\SocialSite\SocialSite.Components\Impl\MemberTypesService.cs:23 
    SocialSite.Web.Areas.Admin.Controllers.MemberTypesController.ListMemberTypes() in D:\Visual Studio 2010\SocialSite\SocialSite\Areas\Admin\Controllers\MemberTypesController.cs:44 
    lambda_method(Closure , ControllerBase , Object[]) +62 
    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.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() +8862381 
    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

不知道如何格式化堆栈跟踪比任何bertter。

这里是有问题的模型。

public class MemberType 
{ 
    [Key] 
    public virtual int Id { get; set; } 

    [StringLengthAttribute(65, ErrorMessage = "Maximum length 65 characters")] 
    public virtual string Name { get; set; } 

    public virtual string Description { get; set; } 

    public virtual bool Registration { get; set; } 

    public virtual bool Enabled { get; set; } 

    [TimestampAttribute] 
    public virtual byte[] Timestamp { get; set; } 

    public virtual bool Activation { get; set; } 

    public virtual Guid RoleId { get; set; } // TODO: this should be a complex type of aspnet_Role or atleaset a foriegn key 

    public virtual bool Searchable { get; set; } 

    public virtual ICollection<MemberTypeProfileFieldGroup> MemberTypeProfileFieldGroups { get; set; } 
}

来源

2011-05-09 JBeckton

创建模型元数据您可以更好地设置您的问题的格式，并为您的模型提供代码？ – 2011-05-09 15:34:47

例外说，你DbContext（或者也许是从您的上下文中引用的一些类定义DbSet<MemberType> MemberType两次。每种类型只能有一个定义DbSet。代码你张贴绝对没有关系的除外。抛出异常当EF代码首先探索DbContext并从可用的DbSets

来源

2011-05-09 21:17:12

ASP.Net MVC 3 EF4.1代码优先 - 不支持每种类型的多个对象集

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