How to create a scrollpane that would scroll in a vertical direction forever?

Question

I'm not sure if this is possible and I couldn't find anything on it, but could I make a scrollpane scroll forever? I am constantly adding new buttons and labels into the window once a button is pressed, and eventually is gets to the bottom. I may be setting it up wrong but here is code:

BorderPane bp = new BorderPane();
GridPane gp = new GridPane();
Button b = new Button("click");
gp.add(b, 1, 1);
ScrollPane sp = new ScrollPane(gp);
bp.setTop(sp);
b.setOnAction(e -> createLabel());

Answer 1

Your'e nearly there, all you now need to do is add the scroll pane as a child of whatever the container is

        GridPane gp = new GridPane();
        Button b = new Button("click");
        gp.add(b, 1, 1);
        b.setOnAction(e -> createLabel());

        ScrollPane sp = new ScrollPane(gp);

        container.add(sp); // where container is whatever node that'll contain the gridpane.

Play with this code

public class Controller {
    @FXML private VBox topLevelContainer; // root fxml element

    @FXML
    void initialize(){

        GridPane gridPane = new GridPane();
        ScrollPane sp = new ScrollPane(gridPane);
        topLevelContainer.getChildren().add(sp);

        // add a 100 buttons to 0th column
        for (int i = 0; i < 100; i++) {
            gridPane.add(new Button("button"),0,i);
        }


    }

}