轉換清單 <Employee> 到Byte []數組

Question

我有要轉換為字節[]數組的員工對象列表...

我使用了以下代碼進行轉換：

 private byte[] ObjectToByteArray(List<Employee> obj)
        {
            if (obj == null)
                return null;
            var bf = new BinaryFormatter();
            var ms = new MemoryStream();
            bf.Serialize(ms, obj);
            return ms.ToArray();
        }

但這給了我以下錯誤。

 at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type)
   at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
   at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
   at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Type objectType, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, SerializationBinder binder)
   at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteArray(WriteObjectInfo objectInfo, NameInfo memberNameInfo, WriteObjectInfo memberObjectInfo)
   at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write(WriteObjectInfo objectInfo, NameInfo memberNameInfo, NameInfo typeNameInfo)
   at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph)
   at ExportToExcel.Controllers.HomeController.ObjectToByteArray(List`1 obj) in C:\Users\mutturajnb\Documents\Visual Studio 2010\Projects\ExportToExcel\ExportToExcel\Controllers\HomeController.cs:line 46
   at ExportToExcel.Controllers.HomeController.Index() in C:\Users\mutturajnb\Documents\Visual Studio 2010\Projects\ExportToExcel\ExportToExcel\Controllers\HomeController.cs:line 26
   at lambda_method(Closure , ControllerBase , Object[] )
   at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)

我需要用SerializableAttribute裝飾我的類成員嗎？

Answer 1

至少，您需要確保Employee（和所有組成成員）都標記為可序列化。

感謝您發布堆棧跟蹤，但是如果這不能解決您的問題，異常消息也將很有幫助！