Este enunciado ha sido evaluado por expertos así garantizamos la veracidad de nuestra esta noticia.
Solución:
Usos javafx.scene.control.cell.CheckBoxTableCell y el trabajo esta hecho!
ObservableList< TableColumn< RSSReader, ? >> columns =
_rssStreamsView.getColumns();
[...]
TableColumn< RSSReader, Boolean > loadedColumn = new TableColumn<>( "Loaded" );
loadedColumn.setCellValueFactory(
new Callback,ObservableValue>()
@Override public
ObservableValue call( CellDataFeatures p )
return p.getValue().getCompleted(); );
loadedColumn.setCellFactory(
new Callback,TableCell>()
@Override public
TableCell call( TableColumn p )
return new CheckBoxTableCell<>(); );
[...]
columns.add( loadedColumn );
ACTUALIZAR: mismo código usando expresiones lambda de Java 8
ObservableList< TableColumn< RSSReader, ? >> columns =
_rssStreamsView.getColumns();
[...]
TableColumn< RSSReader, Boolean > loadedColumn = new TableColumn<>( "Loaded" );
loadedColumn.setCellValueFactory( f -> f.getValue().getCompleted());
loadedColumn.setCellFactory( tc -> new CheckBoxTableCell<>());
[...]
columns.add( loadedColumn );
¡El recuento de líneas se divide por dos! (16 ==> 8)
ACTUALIZAR: mismo código usando la palabra contextual “var” de Java 10
var columns = _rssStreamsView.getColumns();
[...]
var loadedColumn = new TableColumn( "Loaded" );
loadedColumn.setCellValueFactory( f -> f.getValue().getCompleted());
loadedColumn.setCellFactory( tc -> new CheckBoxTableCell<>());
[...]
columns.add( loadedColumn );
EDITAR para agregar un ejemplo editable funcional completo (Java 8)
public class Os
private final StringProperty name = new SimpleStringProperty();
private final BooleanProperty delete = new SimpleBooleanProperty();
public Os( String nm, boolean del )
name .set( nm );
delete.set( del );
public StringProperty nameProperty () return name;
public BooleanProperty deleteProperty() return delete;
public class FxEditableCheckBox extends Application
@Override
public void start( Stage stage ) throws Exception
final TableView view = new TableView<>();
final ObservableList> columns = view.getColumns();
final TableColumn nameColumn = new TableColumn<>( "Name" );
nameColumn.setCellValueFactory( new PropertyValueFactory<>( "name" ));
columns.add( nameColumn );
final TableColumn loadedColumn = new TableColumn<>( "Delete" );
loadedColumn.setCellValueFactory( new PropertyValueFactory<>( "delete" ));
loadedColumn.setCellFactory( tc -> new CheckBoxTableCell<>());
columns.add( loadedColumn );
final ObservableList items =
FXCollections.observableArrayList(
new Os( "Microsoft Windows 3.1" , true ),
new Os( "Microsoft Windows 3.11" , true ),
new Os( "Microsoft Windows 95" , true ),
new Os( "Microsoft Windows NT 3.51", true ),
new Os( "Microsoft Windows NT 4" , true ),
new Os( "Microsoft Windows 2000" , true ),
new Os( "Microsoft Windows Vista" , true ),
new Os( "Microsoft Windows Seven" , false ),
new Os( "Linux all versions :-)" , false ));
view.setItems( items );
view.setEditable( true );
final Button delBtn = new Button( "Delete" );
delBtn.setMaxWidth( Double.MAX_VALUE );
delBtn.setOnAction( e ->
final Set del = new HashSet<>();
for( final Os os : view.getItems())
if( os.deleteProperty().get())
del.add( os );
view.getItems().removeAll( del );
);
stage.setScene( new Scene( new BorderPane( view, null, null, delBtn, null )));
BorderPane.setAlignment( delBtn, Pos.CENTER );
stage.show();
public static void main( String[] args )
launch( args );
EDITAR para agregar un ejemplo editable funcional completo (Java 10)
public class Os
private final StringProperty name = new SimpleStringProperty();
private final BooleanProperty delete = new SimpleBooleanProperty();
public Os( String nm, boolean del )
name .set( nm );
delete.set( del );
public StringProperty nameProperty () return name;
public BooleanProperty deleteProperty() return delete;
public class FxEditableCheckBoxJava10 extends Application
@Override
public void start( Stage stage ) throws Exception
final var view = new TableView();
final var columns = view.getColumns();
final var nameColumn = new TableColumn( "Name" );
nameColumn.setCellValueFactory( new PropertyValueFactory<>( "name" ));
columns.add( nameColumn );
final var loadedColumn = new TableColumn( "Delete" );
loadedColumn.setCellValueFactory( new PropertyValueFactory<>( "delete" ));
loadedColumn.setCellFactory( tc -> new CheckBoxTableCell<>());
columns.add( loadedColumn );
final var items = FXCollections.observableArrayList(
new Os( "Microsoft Windows 3.1" , true ),
new Os( "Microsoft Windows 3.11" , true ),
new Os( "Microsoft Windows 95" , true ),
new Os( "Microsoft Windows NT 3.51", true ),
new Os( "Microsoft Windows NT 4" , true ),
new Os( "Microsoft Windows 2000" , true ),
new Os( "Microsoft Windows Vista" , true ),
new Os( "Microsoft Windows Seven" , false ),
new Os( "Linux all versions :-)" , false ));
view.setItems( items );
view.setEditable( true );
final var delBtn = new Button( "Delete" );
delBtn.setMaxWidth( Double.MAX_VALUE );
delBtn.setOnAction( e ->
final var del = new HashSet();
for( final var os : view.getItems())
if( os.deleteProperty().get())
del.add( os );
view.getItems().removeAll( del );
);
stage.setScene( new Scene( new BorderPane( view, null, null, delBtn, null )));
BorderPane.setAlignment( delBtn, Pos.CENTER );
stage.show();
public static void main( String[] args )
launch( args );
Debe establecer un CellFactory en TableColumn.
Por ejemplo:
Callback, TableCell> booleanCellFactory =
new Callback, TableCell>()
@Override
public TableCell call(TableColumn p)
return new BooleanCell();
;
active.setCellValueFactory(new PropertyValueFactory("active"));
active.setCellFactory(booleanCellFactory);
class BooleanCell extends TableCell
private CheckBox checkBox;
public BooleanCell()
checkBox = new CheckBox();
checkBox.setDisable(true);
checkBox.selectedProperty().addListener(new ChangeListener ()
public void changed(ObservableValue observable, Boolean oldValue, Boolean newValue)
if(isEditing())
commitEdit(newValue == null ? false : newValue);
);
this.setGraphic(checkBox);
this.setContentDisplay(ContentDisplay.GRAPHIC_ONLY);
this.setEditable(true);
@Override
public void startEdit()
super.startEdit();
if (isEmpty())
return;
checkBox.setDisable(false);
checkBox.requestFocus();
@Override
public void cancelEdit()
super.cancelEdit();
checkBox.setDisable(true);
public void commitEdit(Boolean value)
super.commitEdit(value);
checkBox.setDisable(true);
@Override
public void updateItem(Boolean item, boolean empty)
super.updateItem(item, empty);
if (!isEmpty())
checkBox.setSelected(item);
TableColumn select = new TableColumn("CheckBox");
select.setMinWidth(200);
select.setCellValueFactory(new Callback, ObservableValue>()
@Override
public ObservableValue call(
TableColumn.CellDataFeatures arg0)
Person user = arg0.getValue();
CheckBox checkBox = new CheckBox();
checkBox.selectedProperty().setValue(user.isSelected());
checkBox.selectedProperty().addListener(new ChangeListener()
public void changed(ObservableValue ov,
Boolean old_val, Boolean new_val)
user.setSelected(new_val);
);
return new SimpleObjectProperty(checkBox);
);
table.getColumns().addAll( select);
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