public IUserInfo GetUserByID(int userId)
 {
  IUserInfo userinfo= EntityBuilder.CreateEntity<IUserInfo>();
  userinfo.ID = userId;
  userinfo.Name = "姓名_" + userId;
  userinfo.Birthday = new DateTime(1980, 1, 1);
  return userinfo;
 }

using System;
namespace NetLib
{
 public interface IUserInfo
 {
 DateTime Birthday { get; set; }
 int ID { get; set; }
 string Name { get; set; }
 }
}

IUserInfo userinfo= EntityBuilder.CreateEntity<IUserInfo>();

Func<int, Object> fun;

CppUserInfo GetUserByID(int userId)
 {
  //调用.NET方法，得到结果
  MethodInfo^ method = dotnetObject->GetType()->GetMethod("GetUserByID", BindingFlags::Public | BindingFlags::Instance);
  Func<int, Object^>^ fun = (Func<int, Object^>^)Delegate::CreateDelegate(Func<int, Object^>::typeid, this->dotnetObject, method);
  Object^ result = fun(userId);
  //转换托管类型数据到本机结构体
  Func<String^, Object^>^ entityProp =EntityHelper::EntityCallDelegate(result);
  CppUserInfo user;
  user.ID = (int)entityProp("ID");
  user.Name = (String^)entityProp("Name");// MarshalString((String^)entityProp("Name"));
  user.Birthday = Convert2CppDateTime((DateTime^)entityProp("Birthday"));
  return user;
 }

Object^ result = fun(userId); 

public object PropertyList(string propertyFieldName)

 static Func<String^, Object^>^ EntityCallDelegate(Object^ entity)
 {
  //实体类基类的一个方法定义：
  //public object PropertyList(string propertyFieldName)
  Type^ base = entity->GetType()->BaseType;
  MethodInfo^ methodEntity = base->GetMethod("PropertyList", BindingFlags::Public | BindingFlags::Instance);
  Func<String^, Object^>^ funEntity = (Func<String^, Object^>^)Delegate::CreateDelegate(Func<String^, Object^>::typeid, 
      entity, methodEntity);
  //示例 String^ result = (String^)funEntity("Name");
  return funEntity;
 }

Func<String^, Object^>^ entityProp =EntityHelper::EntityCallDelegate(result);
int id = (int)entityProp("ID");

struct CppUserInfo
{
 int ID;
 //wstring Name;
 CString Name;
 tm Birthday;
};

// 
 //要使用下面的方法，请先 #include <string> 
 //
 static wstring MarshalString(String ^ s) {
  wstring os;
  const wchar_t* chars =
   (const wchar_t*)(Marshal::StringToHGlobalUni(s)).ToPointer();
  os = chars;
  Marshal::FreeHGlobal(IntPtr((void*)chars));
  return os;
 }

 static tm Convert2CppDateTime(DateTime^ dt)
 {
  tm result;
  result.tm_year = dt->Year - 1900;
  result.tm_mon = dt->Month;
  result.tm_wday = dt->Day;
  return result;
 }
 static DateTime^ Covert2NetDateTime(tm cppDate)
 {
  return gcnew DateTime(
   cppDate.tm_year + 1900, 
   cppDate.tm_mon, 
   cppDate.tm_wday
  );
 }

//转换托管类型数据到本机结构体
   Func<String^, Object^>^ entityProp =EntityHelper::EntityCallDelegate(result);
   CppUserInfo user;
   user.ID = (int)entityProp("ID");
   user.Name = (String^)entityProp("Name");// MarshalString((String^)entityProp("Name"));
   user.Birthday = Convert2CppDateTime((DateTime^)entityProp("Birthday"));