Question

我收到错误：＆＃34; 收集已修改;枚举操作可能无法执行。＆＃34;正在修改NameValueCollection时抛出（至少这是我对导致错误的原因的假设）。

这是修改集合的代码，所有研究和其他stackoverflow问题似乎只涉及foreach循环，而不是我的情况。

我的问题是：这个错误发生在哪里以及为什么会发生错误，这个错误的解决方法是什么？

编辑--- 打开和关闭表单并排除 - 重新包含文件后，它打开了，我实际上可以看到设计器，但如果我关闭VS2012并重新打开解决方案/项目，它回到同样的错误。

protected override void OpenEditCRMForm()
{
   NameValueCollection nvc = new NameValueCollection();
   nvc.Add("ModuleID", "1");
   nvc.Add("Key", this._crm.ID.ToString());
   nvc.Add("DisplayOnly", "false");
   nvc.Add("SaveChangesToDB", "true");
   ((IBaseDisplay)this).Load(nvc); //Just a custom interface overridden to load this Collection.

}

调用堆栈

at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
at System.Collections.Generic.List`1.Enumerator.MoveNextRare()
at System.Collections.Generic.List`1.Enumerator.MoveNext()
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblySpecFound(List`1 assemblies, String assemblyFullName)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AddDependencies(Assembly a, String fileName)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.get_Assembly()
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.Search(String fullName, String typeName, Boolean ignoreTypeCase, Boolean allowPrivate, Assembly& assembly, String description)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.AssemblyEntry.Search(String fullName, String typeName, Boolean ignoreTypeCase, Assembly& assembly, String description)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.SearchNormalEntries(AssemblyName assemblyName, String typeName, Boolean ignoreTypeCase, Assembly& assembly, Boolean fastSearch)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.SearchEntries(AssemblyName assemblyName, String typeName, Boolean ignoreCase, Assembly& assembly, ReferenceType refType)
at Microsoft.VisualStudio.Design.VSTypeResolutionService.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, ReferenceType refType)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.AggregateTypeResolutionService.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.AggregateTypeResolutionService.GetType(String name)
at System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.GetType(String typeName)
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.EnsureDocument(IDesignerSerializationManager manager)
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32 fReload)

收集被修改;枚举操作可能无法执行。被抛出

0 个答案: