If you look at my cellfragment branch in my fork.....
# tornadofx
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If you look at my cellfragment branch in my fork...I pushed maintaining the active record count into the model. This opens it up for binding and works great with the add() and remove() operations. The problem I have with it now is the aforementioned completed() method which I can't count on to track with the actual completed operations. https://github.com/bekwam/todomvcFX/blob/cellfragment/examples/tornadofx/src/main/kotlin/todomvcfx/tornadofx/model/TodoItemModel.kt#L6