javafx – TornadoFX filechooser

I'm looking for a solution for JavaFX filechooser (in kotlin) I insist on this. I can't pass root view because window! Yes, expect:

button("open some file") {

                    setOnAction {
                        val fileChooser = FileChooser();
                        val file = fileChooser.showOpenDialog(???)
                        ...
                    }

                }

What should I pass in this case?

Solution

According to the docs, you can pass a null for the window

However, since you are using tornadofx, you may only want to use the choosefile and choosedirectory functions it provides They provide you with useful defaults, but (because they are only defaults), you can easily override them to customize the functionality according to your needs