# Associated Objects in C#

### objc_setAssociatedObject makes a friend

March 22, 2014

Many people think there is no equivalent of objc_setAssociatedObject in C#, but those people are wrong.

As a quick refresher, Objective-C allows you to add methods to objects via categories (roughly equivalent to extension methods in C#), but there's no way to add new property values directly. Instead, you can use  . . .