Asp.net mvc 4 System.NotImplementedException:“；未实施该方法或操作。”；万无一失的验证

在我的MVC4应用程序中，我使用的是MVC万无一失库

在我的元数据类中，我有

public class R_DealsMetaData
{
    public int ID { get; set; }
    public int UserId { get; set; }
    public bool CodeGenerated { get; set; }

    [Required(ErrorMessage="Please Enter Description")]
    [Display(Name="Promotion Name:")]
    public string Description { get; set; }

    [Required(ErrorMessage = "Please select one Option")]
    [Display(Name = "Deal Buy:")]
    public int Buy { get; set; }

    [Required(ErrorMessage = "Please select one Option")]
    [Display(Name = "Deal Free:")]
    public int Free { get; set; }

    public Nullable<bool> Status { get; set; }

    public string Type { get; set; }

    [DataType(DataType.Date)]
    public System.DateTime CreateDate { get; set; }

    [DataType(DataType.Date)]
    [DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:yyyy-MM-dd}")]
    [Required(ErrorMessage = "Please select Expiry Date")]
    [Display(Name = "Promotion Expiry Date:")]
    public System.DateTime ExpiryDate { get; set; }

    [RequiredIf("Type", "P", ErrorMessage = "Please select")]
    public Nullable<int> PointEarnType { get; set; }

    [RequiredIf("PointEarnType", 2, ErrorMessage = "Please enter value")]
    public string PointEarnMealText { get; set; }

    [RequiredIf("Type","V",ErrorMessage="Please enter")]
    public string VolumeBuyText { get; set; }

    [RequiredIf("Type","V",ErrorMessage="Please enter")]
    public string VolumeEarnText { get; set; }

}

以下是例外情况的详细信息

An unexpected exception was thrown during validation of 'PointEarnType' when invoking     Foolproof.RequiredIfAttribute.IsValid. See the inner exception for details.

堆栈跟踪详细信息

    [NotImplementedException: The method or operation is not implemented.]
   Foolproof.ModelAwareValidationAttribute.IsValid(Object value) +59
   System.ComponentModel.DataAnnotations.ValidationAttribute.IsValid(Object value, ValidationContext validationContext) +115
   System.ComponentModel.DataAnnotations.ValidationAttribute.GetValidationResult(Object value, ValidationContext validationContext) +29
   System.Data.Entity.Internal.Validation.ValidationAttributeValidator.Validate(EntityValidationContext entityValidationContext, InternalMemberEntry property) +198

[DbUnexpectedValidationException: An unexpected exception was thrown during validation of 'PointEarnType' when invoking Foolproof.RequiredIfAttribute.IsValid. See the inner exception for details.]
   System.Data.Entity.Internal.Validation.ValidationAttributeValidator.Validate(EntityValidationContext entityValidationContext, InternalMemberEntry property) +299
   System.Data.Entity.Internal.Validation.PropertyValidator.Validate(EntityValidationContext entityValidationContext, InternalMemberEntry property) +148
   System.Data.Entity.Internal.Validation.EntityValidator.ValidateProperties(EntityValidationContext entityValidationContext, InternalPropertyEntry parentProperty, List`1 validationErrors) +203
   System.Data.Entity.Internal.Validation.TypeValidator.Validate(EntityValidationContext entityValidationContext, InternalPropertyEntry property) +105
   System.Data.Entity.Internal.Validation.EntityValidator.Validate(EntityValidationContext entityValidationContext) +55
   System.Data.Entity.Internal.InternalEntityEntry.GetValidationResult(IDictionary`2 items) +299
   System.Data.Entity.DbContext.ValidateEntity(DbEntityEntry entityEntry, IDictionary`2 items) +89
   System.Data.Entity.DbContext.GetValidationErrors() +289
   System.Data.Entity.Internal.InternalContext.SaveChanges() +107
   System.Data.Entity.Internal.LazyInternalContext.SaveChanges() +53
   System.Data.Entity.DbContext.SaveChanges() +52
   MOU.Controllers.RDealsController.Create(R_Deals r_deals) in e:\MVC Projects\MouMvc\Controllers\RDealsController.cs:197
   lambda_method(Closure , ControllerBase , Object[] ) +180
   System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +59
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +434
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +60
   System.Web.Mvc.Async.AsyncControllerActionInvoker.InvokeSynchronousActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +50
   System.Web.Mvc.Async.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41() +75
   System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +44
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +49
   System.Web.Mvc.Async.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33() +125
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +321
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +321
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +321
   System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +50
   System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +68
   System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +184
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +136
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +40
   System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +40
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +45
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +40
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9690164
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

[未实现异常：未实现该方法或操作。]
万无一失的.ModelAwareValidationAttribute.IsValid（对象值）+59
System.ComponentModel.DataAnnotations.ValidationAttribute.IsValid（对象值，ValidationContext ValidationContext）+115
System.ComponentModel.DataAnnotations.ValidationAttribute.GetValidationResult（对象值，ValidationContext ValidationContext）+29
System.Data.Entity.Internal.Validation.ValidationAttributeValidator.Validate（EntityValidationContext EntityValidationContext，InternalMemberEntry属性）+198
[DbUnexpectedValidationException:在调用Simulproof.RequirediftAttribute.IsValid时验证“PointerType”时引发意外异常。有关详细信息，请参阅内部异常。]
System.Data.Entity.Internal.Validation.ValidationAttributeValidator.Validate（EntityValidationContext EntityValidationContext，InternalMemberEntry属性）+299
System.Data.Entity.Internal.Validation.PropertyValidator.Validate（EntityValidationContext EntityValidationContext，InternalMemberEntry属性）+148
System.Data.Entity.Internal.Validation.EntityValidator.ValidateProperties（EntityValidationContext EntityValidationContext，InternalPropertyEntry parentProperty，列表'1 validationErrors）+203
System.Data.Entity.Internal.Validation.TypeValidator.Validate（EntityValidationContext EntityValidationContext，InternalPropertyEntry属性）+105
System.Data.Entity.Internal.Validation.EntityValidator.Validate（EntityValidationContext EntityValidationContext）+55
System.Data.Entity.Internal.InternalEntityEntry.GetValidationResult（IDictionary`2项）+299
System.Data.Entity.DbContext.ValidateEntity（DbEntityEntry entityEntry，IDictionary`2项）+89
System.Data.Entity.DbContext.GetValidationErrors（）+289
System.Data.Entity.Internal.InternalContext.SaveChanges（）+107
System.Data.Entity.Internal.LazyInternalContext.SaveChanges（）+53
System.Data.Entity.DbContext.SaveChanges（）+52
MOU.Controllers.RDealsController.Create（R\u Deals R\u Deals）在e:\MVC Projects\MouMvc\Controllers\RDealsController.cs:197中
lambda_方法（闭包、控制器基、对象[]）+180
System.Web.Mvc.ActionMethodDispatcher.Execute（ControllerBase控制器，对象[]参数）+59
System.Web.Mvc.ReflectedActionDescriptor.Execute（ControllerContext ControllerContext，IDictionary`2参数）+434
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod（ControllerContext ControllerContext，ActionDescriptor ActionDescriptor，IDictionary`2参数）+60
System.Web.Mvc.Async.AsyncControllerActionInvoker.InvokeSynchronousActionMethod（ControllerContext ControllerContext，ActionDescriptor ActionDescriptor，IDictionary`2参数）+50
System.Web.Mvc.Async.c__显示类42.b__41（）+75
System.Web.Mvc.Async.c_uuuudisplayClass8`1.b_uuuu7（IAsyncResult）+44
System.Web.Mvc.Async.WrappedAsyncResult`1.End（）+139
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+102
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod（IAsyncResult asyncResult）+49
System.Web.Mvc.Async.c__显示类39.b__33（）+125
System.Web.Mvc.Async.c__DisplayClass4f.b__49（）+321
System.Web.Mvc.Async.c__DisplayClass4f.b__49（）+321
System.Web.Mvc.Async.c__DisplayClass4f.b__49（）+321
System.Web.Mvc.Async.c__显示类37.b__36（IAsyncResult asyncResult）+44
System.Web.Mvc.Async.WrappedAsyncResult`1.End（）+139
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+102
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters（IAsyncResult asyncResult）+50
System.Web.Mvc.Async.c__DisplayClass2a.b__20（）+68
System.Web.Mvc.Async.c__显示类25.b__22（IAsyncResult asyncResult）+184
System.Web.Mvc.Async.WrappedAsyncResult`1.End（）+136
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+56
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction（IAsyncResult asyncResult）+40
System.Web.Mvc.c_uuudisplayClassId.b_uuu18（IAsyncResult asyncResult）+40
System.Web.Mvc.Async.c__显示类4.b__3（IAsyncResult ar）+47
System.Web.Mvc.Async.WrappedAsyncResult`1.End（）+151
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+59
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+40
System.Web.Mvc.Controller.EndExecuteCore（IAsyncResult asyncResult）+44
System.Web.Mvc.Async.c__显示类4.b__3（IAsyncResult ar）+47
System.Web.Mvc.Async.WrappedAsyncResult`1.End（）+151
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+59
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+40
System.Web.Mvc.Controller.EndExecute（IAsyncResult asyncResult）+39
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute（IAsyncResult asyncResult）+39
System.Web.Mvc.c_uuuudisplayClass8.b_uuuu3（IAsyncResult asyncResult）+45
System.Web.Mvc.Async.c__显示类4.b__3（IAsyncResult ar）+47
System.Web.Mvc.Async.WrappedAsyncResult`1.End（）+151
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+59
System.Web.Mvc.Async.asyncResultRapper.End（IAsyncResult asyncResult，对象标记）+40
System.Web.Mvc.MvcHandler.EndProcessRequest（IAsyncResult asyncResult）+40
System.Web.Mvc.MvcHandler.System.Web.IHTTPassynchandler.EndProcessRequest（IAsyncResult结果）+38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute（）+9690164
System.Web.HttpApplication.ExecuteStep（IExecutionStep步骤，布尔值和完成同步
    [NotImplementedException: The method or operation is not implemented.]
   Foolproof.ModelAwareValidationAttribute.IsValid(Object value) +59
   System.ComponentModel.DataAnnotations.ValidationAttribute.IsValid(Object value, ValidationContext validationContext) +115
   System.ComponentModel.DataAnnotations.ValidationAttribute.GetValidationResult(Object value, ValidationContext validationContext) +29
   System.Data.Entity.Internal.Validation.ValidationAttributeValidator.Validate(EntityValidationContext entityValidationContext, InternalMemberEntry property) +198

[DbUnexpectedValidationException: An unexpected exception was thrown during validation of 'PointEarnType' when invoking Foolproof.RequiredIfAttribute.IsValid. See the inner exception for details.]
   System.Data.Entity.Internal.Validation.ValidationAttributeValidator.Validate(EntityValidationContext entityValidationContext, InternalMemberEntry property) +299
   System.Data.Entity.Internal.Validation.PropertyValidator.Validate(EntityValidationContext entityValidationContext, InternalMemberEntry property) +148
   System.Data.Entity.Internal.Validation.EntityValidator.ValidateProperties(EntityValidationContext entityValidationContext, InternalPropertyEntry parentProperty, List`1 validationErrors) +203
   System.Data.Entity.Internal.Validation.TypeValidator.Validate(EntityValidationContext entityValidationContext, InternalPropertyEntry property) +105
   System.Data.Entity.Internal.Validation.EntityValidator.Validate(EntityValidationContext entityValidationContext) +55
   System.Data.Entity.Internal.InternalEntityEntry.GetValidationResult(IDictionary`2 items) +299
   System.Data.Entity.DbContext.ValidateEntity(DbEntityEntry entityEntry, IDictionary`2 items) +89
   System.Data.Entity.DbContext.GetValidationErrors() +289
   System.Data.Entity.Internal.InternalContext.SaveChanges() +107
   System.Data.Entity.Internal.LazyInternalContext.SaveChanges() +53
   System.Data.Entity.DbContext.SaveChanges() +52
   MOU.Controllers.RDealsController.Create(R_Deals r_deals) in e:\MVC Projects\MouMvc\Controllers\RDealsController.cs:197
   lambda_method(Closure , ControllerBase , Object[] ) +180
   System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +59
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +434
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +60
   System.Web.Mvc.Async.AsyncControllerActionInvoker.InvokeSynchronousActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +50
   System.Web.Mvc.Async.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41() +75
   System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +44
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +49
   System.Web.Mvc.Async.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33() +125
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +321
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +321
   System.Web.Mvc.Async.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49() +321
   System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +139
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +50
   System.Web.Mvc.Async.<>c__DisplayClass2a.<BeginInvokeAction>b__20() +68
   System.Web.Mvc.Async.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult) +184
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +136
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +40
   System.Web.Mvc.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult) +40
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +44
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39
   System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult) +45
   System.Web.Mvc.Async.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar) +47
   System.Web.Mvc.Async.WrappedAsyncResult`1.End() +151
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +40
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9690164
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155