c# - 什么是 C# 枚举中定义的 value__

Question

什么 value__ 可能在这里？

value__
MSN
ICQ
YahooChat
GoogleTalk

我运行的代码很简单:

namespace EnumReflection
{
    enum Messengers
    {
      MSN,
      ICQ,
      YahooChat,
      GoogleTalk
    }

  class Program
  {
    static void Main(string[] args)
    {
      FieldInfo[] fields = typeof(Messengers).GetFields();

      foreach (var field in fields)
      {
        Console.WriteLine(field.Name);
      }

      Console.ReadLine();
    }
  }
}

Answer 1

您可以找到更多 here .海报甚至有示例代码可以帮助您解决问题...只需插入 BindingFlags.Public | BindingFlags.Static 在 GetFields() 的括号之间。

By using reflection, I figured I would gain the upper hand and take control of my enum woes. Unfortunately, calling GetFields on an enum type adds an extra entry named value__ to the returned list. After browsing through the decompilation of Enum, I found that value__ is just a special instance field used by the enum to hold the value of the selected member. I also noticed that the actual enum members are really marked as static. So, to get around this problem, all you need to do is call GetFields with the BindingFlags set to only retrieve the public, static fields