Can't cast BiUniqueValueRenderer to IBivariateRenderer

Discussion created by ssstanton on Jul 3, 2012
Latest reply on Jul 3, 2012 by pyurkosk
I have an instance of IFeatureRenderer that I've determined is an instance of BiUniqueValueRenderer. To pick out the two renderers involved, I then tried to cast it to IBivariateRenderer, but it says it doesn't implement it. How come?

I'm on 10.0, working in C#