A simple UI control that makes it possible to select zero or more items within a TreeView without the need to set a custom cell factory or manually create boolean properties for each row - simply use the check model to request the current selection state.

Screenshot

The following screenshot shows the CheckTreeView with some sample data:

Code Example:

To create the CheckTreeView shown in the screenshot, simply do the following:

// create the data to show in the CheckTreeView 
CheckBoxTreeItem<String> root = new CheckBoxTreeItem<String>("Root");
root.setExpanded(true);
root.getChildren().addAll(
              new CheckBoxTreeItem<String>("Jonathan"),
              new CheckBoxTreeItem<String>("Eugene"),
              new CheckBoxTreeItem<String>("Henri"),
              new CheckBoxTreeItem<String>("Samir"));

// Create the CheckTreeView with the data 
final CheckTreeView<String> checkTreeView = new CheckTreeView<>(root);

// and listen to the relevant events (e.g. when the checked items change).
checkTreeView.getCheckModel().getCheckedItems().addListener(new ListChangeListener<TreeItem<String>>() {
     public void onChanged(ListChangeListener.Change<? extends TreeItem<String>> c) {
         System.out.println(checkTreeView.getCheckModel().getCheckedItems());
     }
});