title: Proper usage of XML inline documentation for derived classes?
body: <p>While I think I understand why inline XML documentation (i.e. using three slashes - ///) isn't working for me, I'd like to get some guidance on how to work around my "problem".</p>
  
  <p>I have an interface, and two derived classes.  One derived class is for simulation, and the other is for talking to real hardware.</p>
  
  <p>It's very likely that the hardware implementation would do something special that the simulator doesn't need to do.  I have XML documentation for the hardware methods, and not for the simulator.  However, when I hover over the method name, I don't get documentation in the tooltip at all, presumably because the XML docs aren't associated with the interface.</p>
  
  <p>This certainly makes sense, and I plan to just put my documentation in the interface instead and live with it.  I am still curious, though... how does everyone else do this?  Is there some magical way to make the tooltip aggregate all of the valid XML docs?  In other words, since the compiler doesn't know which derived class is being used, is there a way for it to show XML docs for all classes that implement this interface?</p>