using System;

using System.Linq;

public class Program

{

    class MyAttribute: Attribute { }

​

    class MyClass

    {

        [MyAttribute]

        public string MyProperty { get; set; }

    }

​

​

    public static void Main()

    {

        var attributes = typeof(MyClass).GetProperties().Where(x => x.GetCustomAttributes(typeof(MyAttribute), true).Any());

        foreach (var attribute in attributes)

        {

            Console.WriteLine(attribute);

        }

    }

}