how do I get the class/property/etc associated with a .NET attribute?

Question

If I apply a custom attribute to a class, for example:

[Foo]
class Bar {}

It's clear that when I retrieve my Foo attribute instance, that it's associated with a Bar. Inside the Foo implementation, say in the ctor, how do I get the class associated with the instance of the attribute? So far, all I've been able to come up with is putting it into the ctor of the attribute:

[Foo(typeof(Bar)]
class Bar {}

which seems horribly redundant.

Answer 1

When you are actually using Foo, you should have the class Foo is an attribute of. So if you need to access a property in Foo, you can pass the Type/instance in as an argument.

Answer 2

You have to pass it in. See this answer...

http://stackoverflow.com/questions/2168942/c-custom-attributes-how-to-get-the-member-type-to-which-an-attribute-was-appl/2169373#2169373