在C＃运行时填写/更新枚举值 [英] Fill/update the enum values at runtime in C#

问题描述

我有Windows应用程序，我需要在运行时通过读取名为Controls.txt的文本文件填充枚举值。
作为限制，我不认为使用字典。以下是枚举MyControls中可用的默认值。 我只需使用枚举。

  public enum MyControls 
 {
 Button1 = 0，
 Button2 = 1，
 Button3 = 2，
} 
  

如果Controls.txt文件可用，则枚举的内容应更改为

  public enum MyControls 
 {
 btn1 = 0，
 btn2 = 1，
 btn3 = 2，
} 
  

我如何实现这一点？我也碰到了链接在运行时创建/修改枚举，但无法得到想法。

解决方案

我强烈认为您正在尝试解决错误的问题。枚举的值是类型安全。我不认为动态填充是一个好主意。真正有用的是在编译之前使用文本文件（例如）甚至填充枚举。您可以使用VS中的文本模板。

您可以在我的博客文章中找到一个例子： http ：//skleanthous.azurewebsites.net/post/2014/05/21/Creating-enums-from-the-database-and-using-them-in-Entity-framework-5-and-later-in-model-first

尽管我的示例从数据库加载，但是将其从文本文件更改为加载应该是微不足道的。

I have windows app where-in i need to fill enum values at runtime by reading a text file named "Controls.txt". As restriction, i'm not suppose to use dictionary. Below is the default values available in the enum MyControls. I have to use enums only.

public enum MyControls
{
   Button1 = 0,
   Button2 = 1,
   Button3 = 2,
}

If Controls.txt file is available, then content of enum should change like

public enum MyControls
{
   btn1 = 0,
   btn2 = 1,
   btn3 = 2,
}

how do i achieve this. I also came across the link Creating / Modifying Enums at Runtime but could not get idea.

解决方案

I strongly think you are trying to solve the wrong problem. The value of enum is type-safety. I do not think that filling it up dynamically is a good idea. What would really be useful is to have an enum populated by a text file (for example) even before compilation. You can do this using text templates in VS.

You can find an example in my blog post here: http://skleanthous.azurewebsites.net/post/2014/05/21/Creating-enums-from-the-database-and-using-them-in-Entity-framework-5-and-later-in-model-first

Although my example loads from a db, changing it to load from a text file should be trivial.

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