c# 从 class 获取列表 <string>

Question

我有一个带有 const 字符串的 class，
有什么方法可以将这些 class 的所有 const 字符串添加到列表中？

public class Permissions
{
public const string AccessHomePage = "AccessHomePage";
public const string AccessAdminPage = "AccessAdminPage";
...
}

一次添加管理员用户的所有权限会更容易
获取 class...

中所有字符串的列表目录

List<string> allPermissions =

会很好...

Answer 1

可能

给定

public class Permissions
{
   public const string AccessHomePage = "AccessHomePage";
   public const string AccessAdminPage = "AccessAdminPage";
}

例子

private static IEnumerable<string> GetConstants<T>()
   => typeof(T).GetFields(BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy)
      .Where(x => x.FieldType == typeof(string) && x.IsLiteral && !x.IsInitOnly)
      .Select(x => x.GetValue(null) as string);

用法

foreach (var item in GetConstants<Permissions>())
   Console.WriteLine(item);

输出

AccessHomePage
AccessAdminPage

_{加入胡椒和盐调味}

说明

BindingFlags.Public

Specifies that public members are to be included in the search.

BindingFlags.Static

Specifies that static members are to be included in the search.

BindingFlags.FlattenHierarchy

Specifies that public and protected static members up the hierarchy should be returned. Private static members in inherited classes are not returned. Static members include fields, methods, events, and properties. Nested types are not returned.

FieldInfo.IsInitOnly Property

Gets a value indicating whether the field can only be set in the body of the constructor.

FieldInfo.IsLiteral Property

Gets a value indicating whether the value is written at compile time and cannot be changed.

c# 从 class 获取列表 <string>

c# get List<string> from class

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c#-9.0