获取枚举值的自定义属性[重复]

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• Anyone know a quick way to get to custom attributes on an enum value? 2 answers
• 有人知道快速获取枚举值的自定义属性吗？ 2个答案

In a WinRT .NET application (C#) I want to get the custom attributes, that are defined on an enum value. Take the following enum for example:

在WinRT .NET应用程序（C＃）中，我想获取在枚举值上定义的自定义属性。以下面的枚举为例：

public enum MyEnum
{
    [Display(Name="Foo")]
    EnumValue1,

    [Display(Name="Bar")]
    EnumValue2
}

Now in "normal" .NET I know that I'm able to obtain the custom attributes of an enum value with enumValue.GetType().GetMember(enumValue.ToString()).

现在在“普通”.NET中，我知道我能够使用enumValue.GetType（）获取枚举值的自定义属性.GetMember（enumValue.ToString（））。

Unfortunately, in WinRT .NET the GetMember() method isn't available on the Type class.
Any suggestions how to go with this?

不幸的是，在WinRT .NET中，Type类上没有GetMember（）方法。有什么建议怎么搭配？

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Thanks to Marc below, I found the answer! The following code works to get a specific custom attribute from an enum value in .NET 4.5 WinRT:

感谢下面的Marc，我找到了答案！以下代码用于从.NET 4.5 WinRT中的枚举值获取特定的自定义属性：

public static class EnumHelper
{
    public static T GetAttribute<T>(this Enum enumValue)
        where T : Attribute
    {
        return enumValue
            .GetType()
            .GetTypeInfo()
            .GetDeclaredField(enumValue.ToString())
            .GetCustomAttribute<T>();
    }
}

1 个解决方案

#1

Rather than looking for members, you should perhaps look specifically for fields. If that isn't available on the Type in WinRT, add using System.Reflection; and use type.GetTypeInfo() and look on there too, as various reflection facets are moved to the type-info.

您可能应该专门查看字段，而不是寻找成员。如果在WinRT中的Type上不可用，请使用System.Reflection添加;并使用type.GetTypeInfo（）并在那里查看，因为各种反射方面被移动到type-in​​fo。