Unbind TextField text property from non-String property

[Martin Borzan]

Using this guide: https://docs.tornadofx.io/0_subsection/11_editing_models_and_validation

I created a custom View that displays a "FolderModel" class, which holds a nameProperty and a pathProperty.
In the example

private fun editPerson(person: Person?) {
        if (person != null) {
            prevSelection?.apply {
                nameProperty.unbindBidirectional(nameField.textProperty())
                titleProperty.unbindBidirectional(titleField.textProperty())
            }
            nameField.bind(person.nameProperty)
            titleField.bind(person.titleProperty)
            prevSelection = person
        }
    }

binds both String properties to the appropriate fields and unbinds the previous selection as needed.

When trying to recreate this, I run into the problem of unbinding the previous model from the textfield bound to it:

    if(currentFolder != null) {
      currentFolder?.apply {
        nameProperty.unbindBidirectional(nameField.textProperty())
        pathProperty.unbindBidirectional(pathField.textProperty()) // <-- this won't compile because pathProperty is an ObjectProperty<Path>!
      }
    }

    nameField.bind(folder.nameProperty)
    pathField.bind(folder.pathProperty, converter = object: StringConverter<Path>() {
      override fun toString(path: Path?): String = path?.toString() ?: ""
      override fun fromString(string: String?): Path? = string?.let { try { Path.of(string) } catch (e: Exception) { null } }
    })
    currentFolder = folder

What's the proper way to unbind an ObjectProperty from a TextField after it's bound using a StringConverter?

[ALEXANDER POROKHIN]

Try use javafx.beans.binding.Bindings.unbindBidirectional(Object property1, Object property2)

[Sam Keene]

The proper way to approach this is to create a FolderViewModal that extends ItemViewModal and inject that into your FolderView and bind it there. Then you can set the item of the FolderViewModal as needed.