Enabling a disabled button when TableView row selected

Question

I have a button on my interface that is disabled by default. I want it to become enabled when the user selects a row in my TableView and becomes disabled again when the user clicks elsewhere. What is the simplest way to do this?

Answer 1

Seems like a perfect place to use JavaFX Bindings:

TableView<String> tableView = new TableView<>(tableData);

TableColumn<String, String> column1 = new TableColumn<>();

Button button = new Button("Button");
button.disableProperty().bind(Bindings.isEmpty(tableView.getSelectionModel().getSelectedItems()));

This example disables the Button when the user has selected nothing or cleared his selection and becomes enabled as soon as at least one row is being selected.