Select the checkbox in the column header everything inside TableView with CheckBoxTableCell

Hello

I have a TableView with a column filed with the box and a listener "changed" in the template class 'Code '. I also have a 'Select all' check box in the header of this column that call the method "handleSelectAllCheckbox()". But him 'select all' does not work!

I'm really grateful for the help.

Here is my code:

Concerning

import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ResourceBundle;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.CheckBox;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TitledPane;




import javafx.scene.control.cell.PropertyValueFactory;
import javafx.util.Callback;




public class FXMLController implements Initializable {


    private CodeService codeService = new CodeServiceImpl();
    @FXML
    private TableView<Code> codeTableView;
    @FXML
    private TableColumn codeNomCol;
    @FXML
    private TableColumn codeAbregeCol;
    @FXML
    private TableColumn codeSelectCol;
    // The table's data
    private ObservableList<Code> dataCode;


    // ---------- ---------- ---------- ---------- ----------
    @Override
    public void initialize(URL url, ResourceBundle rb) {
        this.initCodeTableView();
        this.initColumnsSize();
    }


    /**
     *
     */
    private void initCodeTableView() {
        
        this.codeNomCol.setCellValueFactory(new PropertyValueFactory<Code, String>("nom"));
        this.codeAbregeCol.setCellValueFactory(new PropertyValueFactory<Code, String>("abrege"));
        //this.codeSelectCol.setCellValueFactory(new PropertyValueFactory<Code, String>("selected"));


        this.codeSelectCol.setCellValueFactory(new PropertyValueFactory("selected"));
        this.codeSelectCol.setCellFactory(new Callback<TableColumn<Code, Boolean>, TableCell<Code, Boolean>>() {
            @Override
            public TableCell<Code, Boolean> call(TableColumn<Code, Boolean> arg0) {
                return new CheckBoxTableCell<Code, Boolean>();
            }
        });
        
        // Header CheckBox
        CheckBox cb = new CheckBox();
        cb.setUserData(this.codeSelectCol);
        cb.setOnAction(handleSelectAllCheckbox());
        this.codeSelectCol.setGraphic(cb);       


        this.codeTableView.getItems().clear();
        this.dataCode = FXCollections.observableArrayList((List<Code>) this.codeService.listCodes());
        this.codeTableView.setItems(this.dataCode);
    }


    /**
     * 
     * @return 
     */
    private EventHandler<ActionEvent> handleSelectAllCheckbox() {


        return new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                CheckBox cb = (CheckBox) event.getSource();
                TableColumn column = (TableColumn) cb.getUserData();
                if (cb.isSelected()) {
                    for (Code c : dataCode) {
                        System.out.println("Nom: " + c.getNom() + " Selected: " + c.getSelected());
                        c.setSelected(new SimpleBooleanProperty(Boolean.TRUE));
                    }
                 } else {
                    for (Code c : dataCode) {
                        System.out.println("Nom: " + c.getNom() + " Selected: " + c.getSelected());                        
                        c.setSelected(new SimpleBooleanProperty(Boolean.FALSE));
                    }
                }


            }
        };
    }


    /**
     *
     */
    private void initColumnsSize() {
        this.codeNomCol.setMinWidth(300);
        this.codeAbregeCol.setMinWidth(200);
        this.codeSelectCol.setMinWidth(50);
    }






}

The line

c.setSelected(new SimpleBooleanProperty(Boolean.TRUE));

bad air.

It should be

c.setSelected(true);

This suggests that your class model Code is wrong: it should be built according to the model of properties JavaFX (see tutorial):

public class Code {
     private final BooleanProperty selected ;
     public Code(boolean selected) {
          this.selected = new SimpleBooleanProperty(this, "selected", selected);
     }
     public final boolean getSelected() {
          return this.selected.get();
     }
     public final void setSelected(boolean selected) {
          this.selected.set(selected);
     }
     public final BooleanProperty selectedProperty() {
          return selected ;
     }
}

(And similarly for the other properties).

The problem is that when you change the selected property, the individual check boxes in the column of the table are respecting the old instances of BooleanProperty changes, not the new instance you just created.

Tags: Java

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