我是JavaFX的新手。我创建了这段代码，但是当我点击复选框时，我不知道如何选择整行。
单击行（如果已选中）时，我已实现删除功能。但是现在我想添加复选框选项。
我注意到的一件事是当我删除该行时，下一个复选框被自动选中。
我的代码在这里：
package com.wf.sapphire.client.feature.cls;
import javafx.beans.property.BooleanProperty;
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.geometry.Pos;
import javafx.scene.Parent;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableColumn.CellEditEvent;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.layout.StackPane;
import javafx.util.Callback;
import javax.inject.Inject;
import com.wf.sapphire.client.javafx.ViewModelControllerBase;
public class ClsMainController extends ViewModelControllerBase<ClsMainViewModel> {
@Inject
protected ClsMainController(final ClsMainViewModel clsMainViewModel) {
super(clsMainViewModel);
}
@FXML
public ComboBox<String> clsComboData;
@FXML
public StackPane statckPaneId;
@FXML
private TableView<Person> tblViewer = new TableView();
@FXML
public Button delBtn;
@FXML
Parent root;
private final TableView<Person> table = new TableView<>();
final ObservableList<Person> data = FXCollections.observableArrayList(
new Person(true, "Jacob", "Smith", "jacob.smith@example.com"),
new Person(true, "Isabella", "Johnson", "isabella.johnson@example.com"),
new Person(true, "Ethan", "Williams", "ethan.williams@example.com"),
new Person(true, "Emma", "Jones", "emma.jones@example.com"),
new Person(true, "Michael", "Brown", "michael.brown@example.com")
);
public void initialize() {
//Set<Person> selection = new HashSet<Person>(tblViewer.getSelectionModel().getSelectedItems());
/*System.out.println("\n In the initialize \n");
System.out.println("READ");
System.out.println(this.getClass().getSimpleName() + ".initialize");*/
}
@FXML
private void onSubmitHandler(ActionEvent event) {
System.out.println(clsComboData.getValue());
System.out.println("Button Pressed");
//"Invited" column
TableColumn invitedCol = new TableColumn<Person, Boolean>();
invitedCol.setText("Invited");
invitedCol.setMinWidth(50);
invitedCol.setCellValueFactory(new PropertyValueFactory("invited"));
// Create checkboxes
invitedCol.setCellFactory(new Callback<TableColumn<Person, Boolean>, TableCell<Person, Boolean>>() {
public TableCell<Person, Boolean> call(TableColumn<Person, Boolean> p) {
//System.out.println("Checkbox Pressed");
//private TableView<Person> tblViewer = new TableView();
CheckBoxTableCell<Person, Boolean> checkBox = new CheckBoxTableCell();
return checkBox;
}
});
TableColumn firstNameCol = new TableColumn("First Name");
firstNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("firstName"));
TableColumn lastNameCol = new TableColumn("Last Name");
lastNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("lastName"));
TableColumn emailNameCol = new TableColumn("Email");
emailNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("email"));
//Set cell factory for cells that allow editing
Callback<TableColumn, TableCell> cellFactory =
new Callback<TableColumn, TableCell>() {
public TableCell call(TableColumn p) {
return new EditingCell();
}
};
emailNameCol.setCellFactory(cellFactory);
firstNameCol.setCellFactory(cellFactory);
lastNameCol.setCellFactory(cellFactory);
//Set handler to update ObservableList properties. Applicable if cell is edited
updateObservableListProperties(emailNameCol, firstNameCol, lastNameCol);
// Clear the tableview for next table
tblViewer.getColumns().clear();
// Push the data to the tableview
tblViewer.setItems(data);
tblViewer.setEditable(true);
// Add the columns
tblViewer.getColumns().addAll(invitedCol,firstNameCol, lastNameCol,emailNameCol);
tblViewer.getSelectionModel().setCellSelectionEnabled(true);
CheckBox cb = new CheckBox("Select all");
cb.selectedProperty().addListener(new ChangeListener<Boolean>() {
public void changed(ObservableValue<? extends Boolean> ov,
Boolean old_val, Boolean new_val) {
if (new_val) {
for (Person p : data) {
p.invited.set(true);
}
}
}
});
//tblViewer.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);
}
@FXML
private void onDeleteHandler(ActionEvent event){
data.removeAll(tblViewer.getSelectionModel().getSelectedItems());
tblViewer.getSelectionModel().clearSelection();
}
public static class Person {
private final BooleanProperty invited;
private final SimpleStringProperty firstName;
private final SimpleStringProperty lastName;
private final SimpleStringProperty email;
private Person(boolean invited, String fName, String lName, String email) {
this.invited = new SimpleBooleanProperty(invited);
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.email = new SimpleStringProperty(email);
this.invited.addListener(new ChangeListener<Boolean>() {
public void changed(ObservableValue<? extends Boolean> ov, Boolean t, Boolean t1) {
System.out.println(getFirstName() + " invited: " + t1);
}
});
}
public boolean getInvited() {
return invited.get();
}
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String fName) {
firstName.set(fName);
}
public String getLastName() {
return lastName.get();
}
public void setLastName(String fName) {
lastName.set(fName);
}
public String getEmail() {
return email.get();
}
public void setEmail(String fName) {
email.set(fName);
}
}
private void updateObservableListProperties(TableColumn emailCol, TableColumn firstNameCol,
TableColumn lastNameCol) {
//System.out.println("updateObservableListProperties");
//Modifying the email property in the ObservableList
emailCol.setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
@Override
public void handle(CellEditEvent<Person, String> t) {
//System.out.println("setOnEditCommit");
((Person) t.getTableView().getItems().get(
t.getTablePosition().getRow())).setEmail(t.getNewValue());
}
});
//Modifying the firstName property in the ObservableList
firstNameCol.setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
@Override
public void handle(CellEditEvent<Person, String> t) {
// System.out.println("firstNameCol");
((Person) t.getTableView().getItems().get(
t.getTablePosition().getRow())).setFirstName(t.getNewValue());
}
});
//Modifying the lastName property in the ObservableList
lastNameCol.setOnEditCommit(new EventHandler<CellEditEvent<Person, String>>() {
@Override
public void handle(CellEditEvent<Person, String> t) {
// System.out.println("lastNameCol");
((Person) t.getTableView().getItems().get(
t.getTablePosition().getRow())).setLastName(t.getNewValue());
}
});
}
//CheckBoxTableCell for creating a CheckBox in a table cell
public static class CheckBoxTableCell<S, T> extends TableCell<S, T> {
private final CheckBox checkBox;
private ObservableValue<T> ov;
public CheckBoxTableCell() {
//System.out.println("CheckBoxTableCell");
this.checkBox = new CheckBox();
this.checkBox.setAlignment(Pos.CENTER);
setAlignment(Pos.CENTER);
setGraphic(checkBox);
}
@Override
public void updateItem(T item, boolean empty) {
//System.out.println("updateItem");
super.updateItem(item, empty);
if (empty) {
setText(null);
setGraphic(null);
} else {
setGraphic(checkBox);
if (ov instanceof BooleanProperty) {
checkBox.selectedProperty().unbindBidirectional((BooleanProperty) ov);
}
ov = getTableColumn().getCellObservableValue(getIndex());
if (ov instanceof BooleanProperty) {
checkBox.selectedProperty().bindBidirectional((BooleanProperty) ov);
}
}
}
}
// EditingCell - for editing capability in a TableCell
public static class EditingCell extends TableCell<Person, String> {
private TextField textField;
public EditingCell() {
//System.out.println("EditingCell");
}
@Override
public void startEdit() {
//System.out.println("startEdit");
super.startEdit();
if (textField == null) {
createTextField();
}
setText(null);
setGraphic(textField);
textField.selectAll();
}
@Override
public void cancelEdit() {
//System.out.println("cancelEdit");
super.cancelEdit();
setText((String) getItem());
setGraphic(null);
}
@Override
public void updateItem(String item, boolean empty) {
//System.out.println("updateItem");
super.updateItem(item, empty);
if (empty) {
setText(null);
setGraphic(null);
} else {
if (isEditing()) {
if (textField != null) {
textField.setText(getString());
}
setText(null);
setGraphic(textField);
} else {
setText(getString());
setGraphic(null);
}
}
}
private void createTextField() {
//System.out.println("createTextField");
textField = new TextField(getString());
textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
textField.setOnKeyReleased(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent t) {
if (t.getCode() == KeyCode.ENTER) {
commitEdit(textField.getText());
} else if (t.getCode() == KeyCode.ESCAPE) {
cancelEdit();
}
}
});
}
private String getString() {
//System.out.println("getString");
return getItem() == null ? "" : getItem().toString();
}
}
}
答案 0 :(得分：0)
尝试
public CheckBoxTableCell()
{
//System.out.println("CheckBoxTableCell");
this.checkBox = new CheckBox();
this.checkBox.setAlignment( Pos.CENTER );
setAlignment( Pos.CENTER );
checkBox.selectedProperty().addListener( new ChangeListener<Boolean>()
{
@Override
public void changed( ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue )
{
if ( newValue )
{
getTableView().getSelectionModel().select( getIndex() );
}
else
{
getTableView().getSelectionModel().clearSelection( getIndex() );
}
}
} );
setGraphic( checkBox );
}