Javafx 2 JavaFX2.1、2.2 TableView更新问题
我的应用程序使用JPA将数据读入TableView,然后修改并显示它们。该表在JavaFX2.0.3下刷新了修改后的记录。在JavaFX2.1、2.2下,表将不再刷新更新。我发现其他人也有类似的问题。我的计划是继续使用2.0.3,直到有人修复了2.1和2.2下的问题。现在我知道这不是一个bug,也不会被修复。嗯,我不知道该怎么处理。以下是从示例演示中修改的代码,以显示问题。若我从表中添加一条新记录或删除一条旧记录,表会很好地刷新。如果我修改了一条记录,在执行添加、删除或排序操作之前,表不会刷新更改。如果删除修改后的记录并再次添加,表将刷新。但修改后的记录放在表的按钮上。如果我删除修改过的记录,添加相同的记录,然后将记录移动到原始位置,表就不会再刷新了。下面是一个完整的代码,请照一些光Javafx 2 JavaFX2.1、2.2 TableView更新问题,javafx-2,Javafx 2,我的应用程序使用JPA将数据读入TableView,然后修改并显示它们。该表在JavaFX2.0.3下刷新了修改后的记录。在JavaFX2.1、2.2下,表将不再刷新更新。我发现其他人也有类似的问题。我的计划是继续使用2.0.3,直到有人修复了2.1和2.2下的问题。现在我知道这不是一个bug,也不会被修复。嗯,我不知道该怎么处理。以下是从示例演示中修改的代码,以显示问题。若我从表中添加一条新记录或删除一条旧记录,表会很好地刷新。如果我修改了一条记录,在执行添加、删除或排序操作之前,表不会刷新更
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.HPos;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Modality;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
public class Main extends Application {
private TextField firtNameField = new TextField();
private TextField lastNameField = new TextField();
private TextField emailField = new TextField();
private Stage editView;
private Person fPerson;
public static class Person {
private final SimpleStringProperty firstName;
private final SimpleStringProperty lastName;
private final SimpleStringProperty email;
private Person(String fName, String lName, String email) {
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.email = new SimpleStringProperty(email);
}
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 TableView<Person> table = new TableView<Person>();
private final ObservableList<Person> data =
FXCollections.observableArrayList(
new Person("Jacob", "Smith", "jacob.smith@example.com"),
new Person("Isabella", "Johnson", "isabella.johnson@example.com"),
new Person("Ethan", "Williams", "ethan.williams@example.com"),
new Person("Emma", "Jones", "emma.jones@example.com"),
new Person("Michael", "Brown", "michael.brown@example.com"));
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
Scene scene = new Scene(new Group());
stage.setTitle("Table View Sample");
stage.setWidth(535);
stage.setHeight(535);
editView = new Stage();
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
TableColumn firstNameCol = new TableColumn("First Name");
firstNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("firstName"));
firstNameCol.setMinWidth(150);
TableColumn lastNameCol = new TableColumn("Last Name");
lastNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("lastName"));
lastNameCol.setMinWidth(150);
TableColumn emailCol = new TableColumn("Email");
emailCol.setMinWidth(200);
emailCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("email"));
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);
//--- create a edit button and a editPane to edit person
Button addButton = new Button("Add");
addButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
fPerson = null;
firtNameField.setText("");
lastNameField.setText("");
emailField.setText("");
editView.show();
}
});
Button editButton = new Button("Edit");
editButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
if (table.getSelectionModel().getSelectedItem() != null) {
fPerson = table.getSelectionModel().getSelectedItem();
firtNameField.setText(fPerson.getFirstName());
lastNameField.setText(fPerson.getLastName());
emailField.setText(fPerson.getEmail());
editView.show();
}
}
});
Button deleteButton = new Button("Delete");
deleteButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
if (table.getSelectionModel().getSelectedItem() != null) {
data.remove(table.getSelectionModel().getSelectedItem());
}
}
});
HBox addEditDeleteButtonBox = new HBox();
addEditDeleteButtonBox.getChildren().addAll(addButton, editButton, deleteButton);
addEditDeleteButtonBox.setAlignment(Pos.CENTER_RIGHT);
addEditDeleteButtonBox.setSpacing(3);
GridPane editPane = new GridPane();
editPane.getStyleClass().add("editView");
editPane.setPadding(new Insets(3));
editPane.setHgap(5);
editPane.setVgap(5);
Label personLbl = new Label("Person:");
editPane.add(personLbl, 0, 1);
GridPane.setHalignment(personLbl, HPos.LEFT);
firtNameField.setPrefWidth(250);
lastNameField.setPrefWidth(250);
emailField.setPrefWidth(250);
Label firstNameLabel = new Label("First Name:");
Label lastNameLabel = new Label("Last Name:");
Label emailLabel = new Label("Email:");
editPane.add(firstNameLabel, 0, 3);
editPane.add(firtNameField, 1, 3);
editPane.add(lastNameLabel, 0, 4);
editPane.add(lastNameField, 1, 4);
editPane.add(emailLabel, 0, 5);
editPane.add(emailField, 1, 5);
GridPane.setHalignment(firstNameLabel, HPos.RIGHT);
GridPane.setHalignment(lastNameLabel, HPos.RIGHT);
GridPane.setHalignment(emailLabel, HPos.RIGHT);
Button saveButton = new Button("Save");
saveButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
if (fPerson == null) {
fPerson = new Person(
firtNameField.getText(),
lastNameField.getText(),
emailField.getText());
data.add(fPerson);
} else {
int k = -1;
if (data.size() > 0) {
for (int i = 0; i < data.size(); i++) {
if (data.get(i) == fPerson) {
k = i;
}
}
}
fPerson.setFirstName(firtNameField.getText());
fPerson.setLastName(lastNameField.getText());
fPerson.setEmail(emailField.getText());
data.set(k, fPerson);
table.setItems(data);
// The following will work, but edited person has to be added to the button
//
// data.remove(fPerson);
// data.add(fPerson);
// add and remove refresh the table, but now move edited person to original spot,
// it failed again with the following code
// while (data.indexOf(fPerson) != k) {
// int i = data.indexOf(fPerson);
// Collections.swap(data, i, i - 1);
// }
}
editView.close();
}
});
Button cancelButton = new Button("Cancel");
cancelButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
editView.close();
}
});
HBox saveCancelButtonBox = new HBox();
saveCancelButtonBox.getChildren().addAll(saveButton, cancelButton);
saveCancelButtonBox.setAlignment(Pos.CENTER_RIGHT);
saveCancelButtonBox.setSpacing(3);
VBox editBox = new VBox();
editBox.getChildren().addAll(editPane, saveCancelButtonBox);
Scene editScene = new Scene(editBox);
editView.setTitle("Person");
editView.initStyle(StageStyle.UTILITY);
editView.initModality(Modality.APPLICATION_MODAL);
editView.setScene(editScene);
editView.close();
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.getChildren().addAll(label, table, addEditDeleteButtonBox);
vbox.setPadding(new Insets(10, 0, 0, 10));
((Group) scene.getRoot()).getChildren().addAll(vbox);
stage.setScene(scene);
stage.show();
}
}
导入javafx.application.application;
导入javafx.beans.property.SimpleStringProperty;
导入javafx.collections.FXCollections;
导入javafx.collections.ObservableList;
导入javafx.event.ActionEvent;
导入javafx.event.EventHandler;
导入javafx.geometry.HPos;
导入javafx.geometry.Insets;
导入javafx.geometry.Pos;
导入javafx.scene.Group;
导入javafx.scene.scene;
导入javafx.scene.control.*;
导入javafx.scene.control.cell.PropertyValueFactory;
导入javafx.scene.layout.GridPane;
导入javafx.scene.layout.HBox;
导入javafx.scene.layout.VBox;
导入javafx.scene.text.Font;
导入javafx.stage.model;
导入javafx.stage.stage;
导入javafx.stage.StageStyle;
公共类主扩展应用程序{
private TextField firtNameField=new TextField();
private TextField lastNameField=new TextField();
private TextField emailField=new TextField();
私人舞台编辑视图;
私人;
公共静态类人员{
私有最终SimpleStringProperty名字;
私有最终SimpleStringProperty姓氏;
私人最终SimpleStringProperty电子邮件;
私人(字符串fName、字符串lName、字符串电子邮件){
this.firstName=新的SimpleStringProperty(fName);
this.lastName=新的SimpleStringProperty(lName);
this.email=新的SimpleStringProperty(电子邮件);
}
公共字符串getFirstName(){
返回firstName.get();
}
public void setFirstName(字符串fName){
firstName.set(fName);
}
公共字符串getLastName(){
返回lastName.get();
}
public void setLastName(字符串fName){
lastName.set(fName);
}
公共字符串getEmail(){
返回email.get();
}
public void setEmail(字符串fName){
email.set(fName);
}
}
private TableView table=new TableView();
私有最终可观测列表数据=
FXCollections.observableArrayList(
新人(“雅各布”、“史密斯”、“雅各布”。smith@example.com"),
新人(“伊莎贝拉”、“约翰逊”、“伊莎贝拉”。johnson@example.com"),
新人(“伊桑”、“威廉姆斯”、“伊桑”。williams@example.com"),
新人(“艾玛”、“琼斯”、“艾玛”。jones@example.com"),
新人(“迈克尔”、“布朗”、“迈克尔”。brown@example.com"));
公共静态void main(字符串[]args){
发射(args);
}
@凌驾
公众假期开始(阶段){
场景=新场景(新组());
stage.setTitle(“表格视图示例”);
舞台布景宽度(535);
舞台设置高度(535);
editView=新阶段();
最终标签=新标签(“地址簿”);
label.setFont(新字体(“Arial”,20));
TableColumn firstNameCol=新的TableColumn(“名字”);
firstNameCol.setCellValueFactory(
新财产价值工厂(“名字”);
firstNameCol.setMinWidth(150);
TableColumn lastNameCol=新的TableColumn(“姓氏”);
lastNameCol.setCellValueFactory(
新财产价值工厂(“姓氏”);
lastNameCol.setMinWidth(150);
TableColumn emailCol=新的TableColumn(“电子邮件”);
设置最小宽度(200);
emailCol.setCellValueFactory(
新物业价值工厂(“电子邮件”);
表2.设置项目(数据);
table.getColumns().addAll(firstNameCol、lastNameCol、emailCol);
//---创建编辑按钮和编辑窗格以编辑人员
按钮添加按钮=新按钮(“添加”);
addButton.setOnAction(新的EventHandler(){
@凌驾
公共无效句柄(ActionEvent事件){
fPerson=null;
firtNameField.setText(“”);
lastNameField.setText(“”);
emailField.setText(“”);
editView.show();
}
});
按钮编辑按钮=新按钮(“编辑”);
setOnAction(新的EventHandler(){
@凌驾
公共无效句柄(ActionEvent事件){
if(table.getSelectionModel().getSelectedItem()!=null){
fPerson=table.getSelectionModel().getSelectedItem();
firtNameField.setText(fPerson.getFirstName());
setText(fPerson.getLastName());
emailField.setText(fPerson.getEmail());
editView.show();
trialList.set(currentIndex, tempTrial);
@FXML
private void refreshTableView()
{
firstNameCol.setVisible(false);
lastNameCol.setVisible(false);
emailCol.setVisible(false);
firstNameCol.setVisible(true);
lastNameCol.setVisible(true);
emailCol.setVisible(true);
}
public static <T,U> void refreshTableView(final TableView<T> tableView, final List<TableColumn<T,U>> columns, final List<T> rows) {
if (tableView == null) {
throw new NullPointerException();
}
if (columns == null) {
throw new NullPointerException();
}
if (rows == null) {
throw new NullPointerException();
}
tableView.getColumns().clear();
tableView.getColumns().addAll(columns);
ObservableList<T> list = FXCollections.observableArrayList(rows);
tableView.setItems(list);
}
refreshTableView(myTableView, Arrays.asList(col1, col2, col3), rows);
public class Client extends DB {
private IntegerProperty id = new SimpleIntegerProperty();
private StringProperty lastName = new SimpleStringProperty();
private StringProperty firstName = new SimpleStringProperty();
public final int getID() {return this.id.get(); }
void setID(int id) { this.id.set(id); }
public final IntegerProperty idProperty() { return this.id; }
public final String getLastName() { return this.lastName.get(); }
public final void setLastName(String ln) { this.lastName.set(ln); }
public final StringProperty lastNameProperty() { return this.lastName; }
public final String getFirstName() { return this.firstName.get(); }
public final void setFirstName(String fn) { this.firstName.set(fn); }
public final StringProperty firstNameProperty() { return this.firstName; }
:
:
}
tableView.getColumns().get(0).setVisible(false);
tableView.getColumns().get(0).setVisible(true);
getProperties().put(TableViewSkinBase.REFRESH, Boolean.TRUE);
tableView.getProperties().put(TableViewSkinBase.RECREATE, Boolean.TRUE);