using System;

using System.IO;

using System.Text;

using System.Runtime.CompilerServices;

using System.Reflection;

​

​

​

public class Program

{

    public static void Main()

    {   

        var mi = typeof(MyEnum).GetMember("Value1");

        var attr = mi[0].GetCustomAttribute<FooAttribute>();

        mi = typeof(Bar).GetMember("SomeProp");

        attr = mi[0].GetCustomAttribute<FooAttribute>();

    }

    public class Bar

    {

        [Foo]

        public string SomeProp { get; set; }

    }

    public class FooAttribute : Attribute

    {

        public FooAttribute([CallerMemberName]string propName = null)

        {

            Console.WriteLine("Propname = " + propName);

        }

    }

    enum MyEnum  

    {

        [Foo]

        Value1,

        [Foo]

        Value2

    };

}