final class MyController(TView) : Controller!TView
{
    this(TView view)
    {
        super(view);
    }

    @HttpDefault Status defaultAction()
    {
		//default view is 'default'

		if(condition == true) {
			view = view.view("someotherview");

            // if you needed to use it:
            auto someotherview = cast(view_someotherview)view;

           // If the name of the view can be interfered at compile-time you can replace above with:
           auto someotherview = view.viewRaw!"someotherview";
           view = someotherview;

          // ...
		}

    }
}