下面是AdamCrawford的答案的。net核心版本，使用System.Reflection.TypeExtensions;

public static class EnumHelper
{
    /// <summary>
    /// Gets an attribute on an enum field value
    /// </summary>
    /// <typeparam name="T">The type of the attribute you want to retrieve</typeparam>
    /// <param name="enumVal">The enum value</param>
    /// <returns>The attribute of type T that exists on the enum value</returns>
    /// <example>string desc = myEnumVariable.GetAttributeOfType<DescriptionAttribute>().Description;</example>
    public static T GetAttributeOfType<T>(this Enum enumVal) where T : System.Attribute
    {
        var type = enumVal.GetType();
        var memInfo = type.GetMember(enumVal.ToString());
        IEnumerable<Attribute> attributes = memInfo[0].GetCustomAttributes(typeof(T), false);
        return (T)attributes?.ToArray()[0];
    }
}

除了AdamCrawford响应之外，我还进一步创建了一个更专门的扩展方法来获取它的描述。

public static string GetAttributeDescription(this Enum enumValue)
{
    var attribute = enumValue.GetAttributeOfType<DescriptionAttribute>();
    return attribute == null ? String.Empty : attribute.Description;
} 

因此，要获得描述，您可以使用原始扩展方法as

string desc = myEnumVariable.GetAttributeOfType<DescriptionAttribute>().Description

或者你可以简单地调用这里的扩展方法:

string desc = myEnumVariable.GetAttributeDescription();

这应该会使您的代码更具可读性。

对于一些程序员的幽默，一行代码就像一个笑话:

public static string GetDescription(this Enum value) => value.GetType().GetMember(value.ToString()).First().GetCustomAttribute<DescriptionAttribute>() is DescriptionAttribute attribute ? attribute.Description : string.Empty;

以更易读的形式:

using System;
using System.ComponentModel;
using System.Linq;
using System.Reflection;

public static class EnumExtensions
{
    // get description from enum:

    public static string GetDescription(this Enum value)
    {
        return value.GetType().
            GetMember(value.ToString()).
            First().
            GetCustomAttribute<DescriptionAttribute>() is DescriptionAttribute attribute
            ? attribute.Description
            : throw new Exception($"Enum member '{value.GetType()}.{value}' doesn't have a [DescriptionAttribute]!");
    }

    // get enum from description:

    public static T GetEnum<T>(this string description) where T : Enum
    {
        foreach (FieldInfo fieldInfo in typeof(T).GetFields())
        {
            if (fieldInfo.GetCustomAttribute<DescriptionAttribute>() is DescriptionAttribute attribute && attribute.Description == description)
                return (T)fieldInfo.GetRawConstantValue();
        }

        throw new Exception($"Enum '{typeof(T)}' doesn't have a member with a [DescriptionAttribute('{description}')]!");
    }
}

朋友们，如果有帮助的话，我将与你们分享我的解决方案: Custom属性的定义:

    [AttributeUsage(AttributeTargets.Field,AllowMultiple = false)]
public class EnumDisplayName : Attribute
{
    public string Name { get; private set; }
    public EnumDisplayName(string name)
    {
        Name = name;
    }
}

现在因为我需要它在HtmlHelper扩展的HtmlHelper定义内:

public static class EnumHelper
{
    public static string EnumDisplayName(this HtmlHelper helper,EPriceType priceType)
    {
        //Get every fields from enum
        var fields = priceType.GetType().GetFields();
        //Foreach field skipping 1`st fieldw which keeps currently sellected value
        for (int i = 0; i < fields.Length;i++ )
        {
            //find field with same int value
            if ((int)fields[i].GetValue(priceType) == (int)priceType)
            {
                //get attributes of found field
                var attributes = fields[i].GetCustomAttributes(false);
                if (attributes.Length > 0)
                {
                    //return name of found attribute
                    var retAttr = (EnumDisplayName)attributes[0];
                    return retAttr.Name;
                }
            }
        }
        //throw Error if not found
        throw new Exception("Błąd podczas ustalania atrybutów dla typu ceny allegro");
    }
}

希望能有所帮助

这应该能满足你的需要。

try
{
  var enumType = typeof(FunkyAttributesEnum);
  var memberInfos = 
  enumType.GetMember(FunkyAttributesEnum.NameWithoutSpaces1.ToString());
  var enumValueMemberInfo = memberInfos.FirstOrDefault(m => 
  m.DeclaringType == enumType);
  var valueAttributes = 
  enumValueMemberInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
  var description = ((DescriptionAttribute)valueAttributes[0]).Description;
}
catch
{
    return FunkyAttributesEnum.NameWithoutSpaces1.ToString()
}

利用一些较新的c#语言特性，你可以减少行数:

public static TAttribute GetEnumAttribute<TAttribute>(this Enum enumVal) where TAttribute : Attribute
{
    var memberInfo = enumVal.GetType().GetMember(enumVal.ToString());
    return memberInfo[0].GetCustomAttributes(typeof(TAttribute), false).OfType<TAttribute>().FirstOrDefault();
}

public static string GetEnumDescription(this Enum enumValue) => enumValue.GetEnumAttribute<DescriptionAttribute>()?.Description ?? enumValue.ToString();