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Javafx how to get selected row data in table view using checkbox

In this project, I cannot get whether the checkbox data was selected or not in the console output.

My code is:

import java.util.Arrays; import java.util.Iterator; import java.util.List; import javafx.application.Application; import javafx.beans.Observable; import javafx.beans.property.BooleanProperty; import javafx.beans.property.SimpleBooleanProperty; import javafx.beans.property.SimpleStringProperty; import javafx.beans.property.StringProperty; import javafx.beans.value.ChangeListener; import javafx.beans.value.ObservableValue; import javafx.collections.FXCollections; import javafx.collections.ListChangeListener; import javafx.collections.ObservableList; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.TableCell; import javafx.scene.control.TableColumn; import javafx.scene.control.TableColumn.CellEditEvent; import javafx.scene.control.TablePosition; import javafx.scene.control.TableView; import javafx.scene.control.cell.CheckBoxTableCell; import javafx.scene.control.cell.PropertyValueFactory; import javafx.scene.layout.BorderPane; import javafx.stage.Stage; import javafx.util.Callback; public class TableWithCheckbox extends Application { final TableView<Player> table = new TableView<Player>(); ObservableList<Player> data ; @Override public void start(Stage primaryStage) { final BorderPane root = new BorderPane(); table.setItems(createData()); final TableColumn<Player, String> firstNameColumn = new TableColumn<>("First Name"); final TableColumn<Player, String> lastNameColumn = new TableColumn<>("Last Name"); final TableColumn<Player, Boolean> injuredColumn = new TableColumn<>("Injured"); firstNameColumn.setCellValueFactory(new PropertyValueFactory<Player, String>("firstName")); lastNameColumn.setCellValueFactory(new PropertyValueFactory<Player, String>("lastName")); injuredColumn.setCellValueFactory(new PropertyValueFactory<Player, Boolean>("injured")); final Callback<TableColumn<Player, Boolean>, TableCell<Player, Boolean>> cellFactory = CheckBoxTableCell.forTableColumn(injuredColumn); injuredColumn.setCellFactory(new Callback<TableColumn<Player, Boolean>, TableCell<Player, Boolean>>() { @Override public TableCell<Player, Boolean> call(TableColumn<Player, Boolean> column) { TableCell<Player, Boolean> cell = cellFactory.call(column); cell.setAlignment(Pos.CENTER); return cell ; } }); injuredColumn.setCellFactory(cellFactory); injuredColumn.setEditable(true); // This appears not to get invoked: injuredColumn.setOnEditCommit(new EventHandler<TableColumn.CellEditEvent<Player,Boolean>>() { @Override public void handle(CellEditEvent<Player, Boolean> event) { System.out.println("Edit commit"); } }); table.setEditable(true); table.getColumns().addAll(firstNameColumn, lastNameColumn, injuredColumn); root.setCenter(table); Button button = new Button("Dump info"); button.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { for (Player p : table.getItems()) { System.out.println(p); } System.out.println(); } }); Button button1 = new Button("add"); button1.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { data.add(new Player("hbghj", "hjhbbccc77", true)); } }); root.setBottom(button); root.setTop(button1); primaryStage.setScene(new Scene(root, 400, 600)); primaryStage.show(); } public static void main(String[] args) { launch(args); } private ObservableList<Player> createData() { List<Player> players = Arrays.asList( new Player("Hugo" ,"Lloris", false), new Player("Brad", "Friedel", false), new Player("Kyle", "Naughton", false), new Player("Younes", "Kaboul", true), new Player("Benoit", "Assou-Ekotto", false), new Player("Jan", "Vertonghen", false), new Player("Michael", "Dawson", false), new Player("William", "Gallas", true), new Player("Kyle", "Walker", false), new Player("Scott", "Parker", false), new Player("Mousa", "Dembele", false), new Player("Sandro", "Cordeiro", true), new Player("Tom", "Huddlestone", false), new Player("Gylfi","Sigurdsson", false), new Player("Gareth", "Bale", false), new Player("Aaron", "Lennon", false), new Player("Jermane", "Defoe", false), new Player("Emmanuel", "Adebayor", true) ); data = FXCollections.<Player>observableArrayList( new Callback<Player, Observable[]>() { @Override public Observable[] call(Player player) { return new Observable[]{player.injuredProperty()}; } } ); data.addAll(players); data.addListener(new ListChangeListener<Player>() { @Override public void onChanged( javafx.collections.ListChangeListener.Change<? extends Player> change) { System.out.println("List changed"); while (change.next()) { if (change.wasUpdated()) { System.out.println("What code a do here"); System.out.println(); } } } }); table.getSelectionModel().selectedItemProperty().addListener(new ChangeListener() { @Override public void changed(ObservableValue observableValue, Object oldValue, Object newValue) { //Check whether item is selected and set value of selected item to Label if (table.getSelectionModel().getSelectedItem() != null) { TableView.TableViewSelectionModel selectionModel = table.getSelectionModel(); ObservableList selectedCells = selectionModel.getSelectedCells(); TablePosition tablePosition = (TablePosition) selectedCells.get(0); Object val = tablePosition.getTableColumn().getCellData(newValue); System.out.println("Selected Value " + val); System.out.println("Selected row " + newValue); } } }); return data ; } public static class Player { private final StringProperty firstName ; private final StringProperty lastName ; private final BooleanProperty injured ; Player(String firstName, String lastName, boolean international) { this.firstName = new SimpleStringProperty(this, "firstName", firstName); this.lastName = new SimpleStringProperty(this, "lastName", lastName); this.injured = new SimpleBooleanProperty(this, "injured", international); } public String getFirstName() { return firstName.get(); } public void setFirstName(String firstName) { this.firstName.set(firstName);} public StringProperty firstNameProperty() { return firstName ; } public String getLastName() { return lastName.get(); } public void setLastName(String lastName) { this.lastName.set(lastName); } public StringProperty lastNameProperty() { return lastName ; } public boolean isInjuredl() { return injured.get(); } public void setInjured(boolean international) { this.injured.set(international); } public BooleanProperty injuredProperty() { return injured ; } @Override public String toString() { return firstName.get() + " " + lastName.get() + (injured.get()?" (injured)":""); } } }

he gives me a way out like

 Selected row: Gareth Bale

but does not indicate that the Checkbox function is selected or not:

 public void onChanged

I need a conclusion like:

  Selected row: Gareth Bale true

or

  Selected row: Gareth Bale false
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1 answer

Try this if:

  if (change.wasUpdated()) { String inj = (data.get(change.getFrom()).injured.getValue())?"injuried":"no longer injuried"; System.out.println(data.get(change.getFrom()).lastName.getValue() + ", " + data.get(change.getFrom()).firstName.getValue() + " " + "changed his status to " + inj); System.out.println(); }

Note output will only be displayed if the player is damaged, otherwise it will be empty:

Selected row: Gareth Bale (wounded)

Selected String: Gareth Bale

To replace it with:

Selected row: Gareth Bale true

Selected row: Gareth Bale false

You will also have to change this function in the player class:

 public String toString() { return firstName.get() + " " + lastName.get() + (injured.get()?" true":" false"); }
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Source: https://habr.com/ru/post/974147/

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