Attribute Class Tip: AttributeUsage

gistfile1.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AttributeTestConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
        }
    }

    [AttributeUsage(AttributeTargets.Class)]
    public class TestClassAttribute : Attribute
    {

    }

    [AttributeUsage(AttributeTargets.Property)]
    public class TestPropertyAttribute : Attribute
    {

    }

    [AttributeUsage(AttributeTargets.Method)]
    public class TestMethodAttribute : Attribute
    {

    }

    [TestClass]
    public class TestClass
    {
        [TestProperty]
        public string Field1 { get; set; }

        [TestMethod]
        public void Foo()
        {

        }
    }
}