title: How do people get mixin-style re-use in C#?
body: <p>I come from a C++ background where I can use template mixins to write code that refers to FinalClass which is a template parameter that is passed in.  This allows reusable functions to be "mixed-in" to any derived class, by simply inheriting from ReusableMixin with a template paramter of MyFinalClass.  This all gets inlined into the class so it's as though I just wrote a big class that did everything -- ie very fast!  Since mixins can chain, I can mix-in all sorts of behaviour (and state) into one object.</p>
  
  <p>If anyone wants clarification on the technique, please ask.  My question is, how can I get reuse like that in C#?  Note: C# generics don't allow inheriting from a generic parameter.</p>