Ninject 投掷“集合已修改；枚举操作可能无法执行”错误
我在我的 Web 项目中使用以下 2 个 Ninject 程序集。
Ninject.dll – Version 2.2.0.0
Ninject.Web.dll – Version 2.2.0.4
我注意到，当我在服务器上执行负载测试时，我收到指向 Ninject 的异常
消息：集合已修改；枚举操作可能不 执行。堆栈跟踪：位于 System.ThrowHelper.ThrowInvalidOperationException（ExceptionResource 资源）位于 System.Collections.Generic.List
1.Enumerator.MoveNextRare() 位于 System.Collections.Generic.List1.Enumerator.MoveNext() 位于 System.Linq.Enumerable.WhereSelectListIterator2.MoveNext() at Ninject.Infrastruct.Language.ExtensionsForIEnumerableOfT.Map[T](IEnumerable1 系列，Action`1 动作）中 c:\Projects\Ninject\Maintenance2.2\ninject\src\Ninject\Infrastruct\Language\ExtensionsForIEnumerableOfT.cs:line 22 于 Ninject.OnePerRequestModule.DeactivateInstancesForCurrentHttpRequest() 在 c:\Projects\Ninject\Maintenance2.2\ninject\src\Ninject\OnePerRequestModule.cs:line 63 at Ninject.OnePerRequestModule.b__0（对象o，EventArgs e) 在 c:\Projects\Ninject\Maintenance2.2\ninject\src\Ninject\OnePerRequestModule.cs:line 36 于 System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() 在 System.Web.HttpApplication.ExecuteStep(IExecutionStep 步骤， 布尔&同步完成）
我确实在 2011 年 5 月 11 日的 Remo Gloor 中找到了这个链接，其中说有一个新的 2.4 版本，其中提到该问题将在 2.4 版本中得到修复。我不确定这个版本是否已发布/可用，因为我无法找到它。 Ninject 运行时异常频繁发生 - System.InvalidOperationException：集合已修改；枚举操作可能无法执行
有谁知道解决此 Ninject 错误的解决方案或知道在哪里可以找到 2.4 版本？
这是我使用 Ninject 2.2.0.0 版本使用 3.0 完成映射的方式，
Bind<IMyEntities>().To<MyEntities>().InRequestScope().WithConstructorArgument("connectionString", ConfigurationManager.ConnectionStrings["MyEntities"].ConnectionString);
我将其更改为使用
Bind<IMyEntities>().ToConstructor(x => new MyEntities());
or
Bind<IMyEntities>().ToConstructor(x => new MyEntities(ConfigurationManager.ConnectionStrings["MyEntities"].ConnectionString));
or
Bind<IMyEntities>().ToConstructor(x => new MyEntities(new EntityConnection (ConfigurationManager.ConnectionStrings["MyEntities"].ConnectionString)));
在尝试了上述所有 3 种不同的方法后，我仍然收到错误。每次以某种方式调用第三个构造函数时。
我不知道还能尝试什么。我投入了大量时间尝试不同的事情，但仍然没有得出结论/解决方案。 如果我无法以某种方式找到/解决这个问题，我将不得不删除所有 Ninjet 引用并转而寻找其他一些 DI。
I am using the following 2 Ninject assemblies in my web project.
Ninject.dll – Version 2.2.0.0
Ninject.Web.dll – Version 2.2.0.4
I have noticed that when I perform load testing on the server I am getting exceptions in my which are pointing to the Ninject
Message: Collection was modified; enumeration operation may not
execute. Stack Trace: at
System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource
resource) at
System.Collections.Generic.List1.Enumerator.MoveNextRare() at1.Enumerator.MoveNext() at
System.Collections.Generic.List
System.Linq.Enumerable.WhereSelectListIterator2.MoveNext() at1
Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map[T](IEnumerable
series, Action`1 action) in
c:\Projects\Ninject\Maintenance2.2\ninject\src\Ninject\Infrastructure\Language\ExtensionsForIEnumerableOfT.cs:line
22 at
Ninject.OnePerRequestModule.DeactivateInstancesForCurrentHttpRequest()
in
c:\Projects\Ninject\Maintenance2.2\ninject\src\Ninject\OnePerRequestModule.cs:line
63 at Ninject.OnePerRequestModule.b__0(Object o, EventArgs
e) in
c:\Projects\Ninject\Maintenance2.2\ninject\src\Ninject\OnePerRequestModule.cs:line
36 at
System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step,
Boolean& completedSynchronously)
I did find this link from Remo Gloor dated May 11 2011 which says there is a new 2.4 version which has mentioned that the problem will be fixed 2.4 version. I am not sure if this version is released/available yet as I not able to find it.
Ninject Runtime Exception occuring frequently - System.InvalidOperationException: Collection was modified; enumeration operation may not execute
Does anybody know the solution to this resolve this Ninject error or know where can I find the 2.4 version?
This is the way I have done the mapping using Version 2.2.0.0 of Ninject
Bind<IMyEntities>().To<MyEntities>().InRequestScope().WithConstructorArgument("connectionString", ConfigurationManager.ConnectionStrings["MyEntities"].ConnectionString);
Using 3.0 I changed it to use
Bind<IMyEntities>().ToConstructor(x => new MyEntities());
or
Bind<IMyEntities>().ToConstructor(x => new MyEntities(ConfigurationManager.ConnectionStrings["MyEntities"].ConnectionString));
or
Bind<IMyEntities>().ToConstructor(x => new MyEntities(new EntityConnection (ConfigurationManager.ConnectionStrings["MyEntities"].ConnectionString)));
After trying all the above mentioned 3 different ways I am still getting the error. Every time the 3rd constructor is getting called somehow.
I am not sure what else to try. I have kind of invested a very good amount of time trying different things and still not coming to a conclusion/resolution.
If I am not able to find/resolve this problem somehow I will have to remove all the Ninjet references all together and go for some other DI's.
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由于一些小的接口不兼容，2.4 已变成 3.0。请参阅http://www.nuget.org/packages/Ninject/3.0.0- rc3
2.4 has become 3.0 because of some minor interface incompatibilities. See http://www.nuget.org/packages/Ninject/3.0.0-rc3