Finding all classes with a particular attribute

Question

I\'ve got a .NET library in which I need to find all the classes which have a custom attribute I\'ve defined on them, and I want to be able to find them on-the-fly when an a

Answer 1

Mark posted a good answer, but here is a linq free version if you prefer it:

    public static IEnumerable GetTypesWith(bool inherit) where TAttribute : Attribute
    {
        var output = new List();

        var assemblies = AppDomain.CurrentDomain.GetAssemblies();

        foreach (var assembly in assemblies)
        {
            var assembly_types = assembly.GetTypes();

            foreach (var type in assembly_types)
            {
                if (type.IsDefined(typeof(TAttribute), inherit))
                    output.Add(type);
            }
        }

        return output;
    }