A modern programming language that makes developers happier.

kotlinlang

I'm not by a compiler now.  I think the composite component -- even if made generic into a type / value pair -- that's repeated would be best.   Tablerow , etc is going to make a better container as far as resizing and scrolling and selection go.  I can give you some suggestions later.  In the meantime,  check out this example project that maintains a single item as a check box + textfield + button <https://github.com/edvin/todomvc>