Verwendung von Attributen

[AttributeUsage(AttributeTargets.Class)]
public class Person : Attribute
{
  private string _vorname;
  private string _nachname;

  public string Vorname
  {
    get { return _vorname; }
    set { this._vorname = value; }
  }

  public string Nachname
  {
    get { return _nachname; }
    set { this._nachname = value; }
  }

  public Person(string Vorname, string Nachname)
  {
    this._nachname = Nachname;
    this._vorname = Vorname;
  }
}

[Person("René", "Paschold")]
public class FirstClass
{
  /* ... */
}

[Person("Shinja", "Strasser")]
public class SecondClass
{
  /* ... */
}

[Person("Andy", "Look")]
public class ThirdClass
{
  /* ... */
}

using System;
using System.Reflection;

public class MeineAnwendung
{
  public static void Main(string[] args)
  {
    AutorInformation(typeof(FirstClass));
    AutorInformation(typeof(SecondClass));
    AutorInformation(typeof(ThirdClass));
  }

  public static void AutorInformation(Type t)
  {
    Console.WriteLine("Autor Informationen über {0}", t);
    Attribute[] attrs = Attribute.GetCustomAttributes(t);

    foreach(Attribute attr in attrs)
    {
      if (attr is Person)
      {
        Person a = (Person)attr;
        Console.WriteLine("--- {0} {1}", a.Vorname, a.Nachname);
      }
    }
    Console.WriteLine();
  }
}