CODEWITHSUNDEEP
javafxtableview
user2715085
user2715085

Reputation: 93

Switching the cell position in Tableview in JAVAFX

Is it possible to switch the row position in a TableView in javafx.

Suppose I created a 5 rows and and there is two button as "UP" and "DOWN". On click of UP button user can swap the particular selected row to upward direction and for DOWN button user can move the row to downward position on click of DOWN button; i.e. user can place the particlar selected row to any position in TableView using Button clicks. Is that possible in TableView using javafx? If its possible kindly provide me a logic to do that.

Upvotes: 2

Views: 1878

Answers (1)

fabian
fabian

Reputation: 82461

You can simply modify the items of the TableView to achieve this effect:

@Override
public void start(Stage primaryStage) {
    TableView<Item<String>> tableView = createTableView();

    Button upButton = new Button("Up");
    Button downButton = new Button("Down");

    ReadOnlyIntegerProperty selectedIndex = tableView.getSelectionModel().selectedIndexProperty();

    upButton.disableProperty().bind(selectedIndex.lessThanOrEqualTo(0));
    downButton.disableProperty().bind(Bindings.createBooleanBinding(() -> {
        int index = selectedIndex.get();
        return index < 0 || index+1 >= tableView.getItems().size();
    }, selectedIndex, tableView.getItems()));

    upButton.setOnAction(evt -> {
        int index = tableView.getSelectionModel().getSelectedIndex();
        // swap items
        tableView.getItems().add(index-1, tableView.getItems().remove(index));
        // select item at new position
        tableView.getSelectionModel().clearAndSelect(index-1);
    });

    downButton.setOnAction(evt -> {
        int index = tableView.getSelectionModel().getSelectedIndex();
        // swap items
        tableView.getItems().add(index+1, tableView.getItems().remove(index));
        // select item at new position
        tableView.getSelectionModel().clearAndSelect(index+1);
    });

    BorderPane root = new BorderPane(tableView);
    root.setRight(new VBox(10, upButton, downButton));

    Scene scene = new Scene(root);

    primaryStage.setScene(scene);
    primaryStage.show();
}

Upvotes: 5

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