如何获得的属性与给定的属性列表？ [英] How to get a list of properties with a given attribute?

问题描述

我有型， T ，我想获得具有属性的公共属性列表 MyAttribute 。该属性标记的AllowMultiple = FALSE ，像这样的：

I have a type, t, and I would like to get a list of the public properties that have the attribute MyAttribute. The attribute is marked with AllowMultiple = false, like this:

[AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]

目前我有什么是这样的，但我想有一个更好的方法：

Currently what I have is this, but I'm thinking there is a better way:

foreach (PropertyInfo prop in t.GetProperties())
{
    object[] attributes = prop.GetCustomAttributes(typeof(MyAttribute), true);
    if (attributes.Length == 1)
    {
         //Property with my custom attribute
    }
}

如何改进呢？我的道歉，如果这是一个重复的，有一吨的反射线有...好像它是一个相当热门的话题。

How can I improve this? My apologies if this is a duplicate, there are a ton of reflection threads out there...seems like it's quite a hot topic.

推荐答案

我最终会使用最该解决方案基于断托马斯Petricek的回答。我通常会想做些什么的两个的属性和属性。

The solution I end up using most is based off of Tomas Petricek's answer. I usually want to do something with both the attribute and property.

var props = from p in this.GetType().GetProperties()
            let attr = p.GetCustomAttributes(typeof(MyAttribute), true)
            where attr.Length == 1
            select new { Property = p, Attribute = attr.First() as MyAttribute};

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