@Override public void initialize(URL arg0, ResourceBundle arg1) { initRectangle(); initLogo(); initTreeView(); initGenButton(); AddDbAction addDbAction = new AddDbAction(mItemMySql); for (int i = 0; i < 50; i++) { SelectLabel label = new SelectLabel("asd"); label.setWrapText(true); label.setGraphic(new ImageView(Context.Icon_Table2)); label.getStyleClass().add("label1"); flowPane.getChildren().add(label); } flowPane.setPadding(new Insets(5, 0, 0, 5)); flowPane.setVgap(5); flowPane.setHgap(5); flowPane.setMaxSize(200d, 200d); flowPane.autosize(); flowPaneRoot.getChildren().add(selection); }