All built-in .Net attributes

Question

I have used AppDomain.CurrentDomain.GetAssemblies() to list all assemblies, but how do I list all built-in attributes in .NET 2.0 using C#?

Answer 1

Note that AppDomain.GetAssemblies() will only list the loaded assemblies... but then it's easy:

var attributes = from assembly in assemblies
                 from type in assembly.GetTypes()
                 where typeof(Attribute).IsAssignableFrom(type)
                 select type;

.NET 2.0 (non-LINQ) version:

List<Type> attributes = new List<Type>();
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
    foreach (Type type in assembly.GetTypes())
    {
        if (typeof(Attribute).IsAssignableFrom(type))
        {
            attributes.Add(type);
        }
    }                   
}