client UI question

Is there an active forum like this one dedicated to gui mechanics?

I want to start doing some front end client work, off of some mvp type of
architecture variant, and realize I really don't know basic controls all
that well anymore, much less WPF.

My immediate question is what control would you use to display a two column
list of items (with some filter options) as an item picker. That doesn't
seem like the gist of this group though.

Thanks for any ideas.

BH