获取枚举值的属性 [英] Getting attributes of Enum's value

问题描述

我想知道是否有可能获得枚举值的属性，而不是枚举本身？例如，假设我有以下枚举：

I would like to know if it is possible to get attributes of the enum values and not of the enum itself? For example, suppose I have the following enum:

using System.ComponentModel; // for DescriptionAttribute

enum FunkyAttributesEnum
{
    [Description("Name With Spaces1")]
    NameWithoutSpaces1,    
    [Description("Name With Spaces2")]
    NameWithoutSpaces2
}

我要的是给定的枚举类型，产生枚举字符串值，并将其描述为2元组。

What I want is given the enum type, produce 2-tuples of enum string value and its description.

值很容易：

Array Values = System.Enum.GetValues(typeof(FunkyAttributesEnum));
foreach (int Value in Values)
    Tuple.Value = Enum.GetName(typeof(FunkyAttributesEnum), Value);

不过，我如何才能说明属性的值，填充Tuple.Desc？我能想到的如何，如果属性属于枚举自己做，但我在一个不知如何从枚举的价值得到它。

But how do I get description attribute's value, to populate Tuple.Desc? I can think of how to do it if the Attribute belongs to the enum itself, but I am at a loss as to how to get it from the value of the enum.

推荐答案

这应该做你所需要的。

var type = typeof(FunkyAttributesEnum);
var memInfo = type.GetMember(FunkyAttributesEnum.NameWithoutSpaces1.ToString());
var attributes = memInfo[0].GetCustomAttributes(typeof(DescriptionAttribute),
    false);
var description = ((DescriptionAttribute)attributes[0]).Description;

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