无法将Outlook对象转换为ReportItem

Question

我正在尝试枚举Outlook文件夹中的不同邮件项目。

一些邮件项目是ReportItems ...我可以告诉它，因为它们的Class = 46.但是，当我尝试使用（（Outlook.ReportItem）项目将__ComObject强制转换为ReportItem时）我得到了这个异常：< / p>

    AutoResolvedWinner  {System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Runtime.InteropServices.COMException: The operation failed.
   --- End of inner exception stack trace ---
   at System.RuntimeType.InvokeDispMethod(String name, BindingFlags invokeAttr, Object target, Object[] args, Boolean[] byrefModifiers, Int32 culture, String[] namedParameters)
   at System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams)
   at System.Dynamic.IDispatchComObject.GetMembers(IEnumerable`1 names)}    System.Reflection.TargetInvocationException

如果有帮助，该对象的MessageClass属性为＆＃34; REPORT.IPM.Note.NDR＆＃34;

帮助将不胜感激。