```sealed class itemViewInstance { data class ...

# tornadofx

[chickenfresh]

sealed class itemViewInstance {
    data class item1(val item1: item1Model): itemViewInstance()
    data class item2(val item2: item2Model): itemViewInstance()
}

I have this model class. array:

val itemlist = FXCollections.observableArrayList<ItemViewInstance>()

and

private val ItemListView = listview(itemlist) {
        selectionModel.selectedItemProperty().addListener { _, _, new ->
            if (new != null) {
                // There I wanna get Item id somehow, which exists in both models (Item1Model and Item2Model)
            }
        }

is there any way I could get itemid on selection from the list?