java - 单击一行时使用表格 View 数据填充文本字段

Question

我想使用我在表格 View 中加载的数据来填充一些文本字段。有没有办法制作一个 OnMouseClick Action 事件，该事件将使用来自表格 View 的数据填充一堆文本字段？

我想要这个是因为我想创建一个更新方法，在该方法中您不必再次编写整个服务详细信息(如价格、部门、可用性和名称)，只需更改一个特定的东西，但这是没问题，我知道该怎么做，只需要使用 tableview 提供的数据自动填充它的文本字段。

在代码中提供了一些注释。

表格 View 的代码:

public class ProgramariDBController implements Initializable {
@FXML
private TextField Serviciu1;
@FXML
private TextField Departament1;
@FXML
private TextField Pret1;
@FXML
private TextField Disponibilitate1;
@FXML
private Label rows;
@FXML
private Label rows;
@FXML
private TextField cpn;
@FXML
private TextField nume1;
@FXML
private TableView<DetaliiProgramari> ProgrDB;
@FXML
private TableColumn<DetaliiProgramari, String> Nume;
@FXML
private TableColumn<DetaliiProgramari, String> Prenume;
@FXML
private TableColumn<DetaliiProgramari, String> Data;
@FXML
private TableColumn<DetaliiProgramari, String> Ora;
@FXML
private TableColumn<DetaliiProgramari, String> Departament;
@FXML
private TableColumn<DetaliiProgramari, String> Doctor;
@FXML
private TableColumn<DetaliiProgramari, String> Nr_telefon;

public LogareController Numeutilzator = new LogareController();
private ObservableList<DetaliiProgramari> Info;

@Override
public void initialize(URL url, ResourceBundle ResurcesFORDAYS) {
    // TODO

}



@FXML
private void AfiseazaProgramari(ActionEvent event) {
    try {
      ConectaredB ConectaredB=new ConectaredB();
        Connection conectare=ConectaredB.logareDB();

        Info = FXCollections.observableArrayList();
        String CNP=cpn.getText();
        ResultSet IncDate = conectare.createStatement().executeQuery("SELECT *  FROM programari where CNP=" + CNP);
        while (IncDate.next()) {

            Info.add(new DetaliiProgramari(IncDate.getString(2), IncDate.getString(3), IncDate.getString(4),
                    IncDate.getString(5), IncDate.getString(6), IncDate.getString(7), IncDate.getString(8)));
            //I have something like this 
     Serviciu1.setText(IncDate.getString(2)); it did work, but it loaded the first thing that was created in TipServiciu, which is a column in the table, so that doesn't really help, and I won't even paste the whole thing, because it will just be confusing for no reason.
        }

    } catch (SQLException ex) {
        System.err.println("Error"+ex);
    }

    Nume.setCellValueFactory(new PropertyValueFactory<>("Nume"));
    Prenume.setCellValueFactory(new PropertyValueFactory<>("Prenume"));
    Data.setCellValueFactory(new PropertyValueFactory<>("Data"));
    Ora.setCellValueFactory(new PropertyValueFactory<>("Ora"));
    Departament.setCellValueFactory(new PropertyValueFactory<>("Departament"));
    Doctor.setCellValueFactory(new PropertyValueFactory<>("Doctor"));
    Nr_telefon.setCellValueFactory(new PropertyValueFactory<>("Nr_telefon"));

    ProgrDB.setItems(null);
    ProgrDB.setItems(Info);

}
@FXML 
private void delete(ActionEvent event) throws IOException  {
    try { 


        String sql = "delete FROM programari where CNP=? ";
        ConectaredB ConectaredB=new ConectaredB();
        Connection conexiune=ConectaredB.logareDB();
        PreparedStatement ps = conexiune.prepareStatement(sql);
        String CNP=cpn.getText();
        ps.setString(1, CNP);
        int count = ps.executeUpdate();

        rows.setText("rows" +count);

    } catch (Exception e) {
        // TODO: handle exception
    }
}
 }

setter 和 getter，如果它们以任何可能的方式提供帮助:

public class ServiciiSittersGettersController {

private final StringProperty Serviciu;
private final StringProperty Disponibilitate;
private final StringProperty Pret;
private final StringProperty Departament;



//Default constructor
public ServiciiSittersGettersController(String Serviciu, String Disponibilitate, String Pret, String Departament) {
    this.Serviciu = new SimpleStringProperty(Serviciu);
    this.Disponibilitate = new SimpleStringProperty(Disponibilitate);
    this.Pret = new SimpleStringProperty(Pret);
    this.Departament = new SimpleStringProperty(Departament);


}
public String getDepartament() {
    return Departament.get();
}

public StringProperty departamentProperty() {
    return Departament;
}

public void setDepartament(String departament) {
    this.Departament.set(departament);
}

public String getServiciu() {
    return Serviciu.get();
}

public StringProperty serviciuProperty() {
    return Serviciu;
}

public void setServiciu(String serviciu) {
    this.Serviciu.set(serviciu);
}

public String getDisponibilitate() {
    return Disponibilitate.get();
}

public StringProperty disponibilitateProperty() {
    return Disponibilitate;
}

public void setDisponibilitate(String disponibilitate) {
    this.Disponibilitate.set(disponibilitate);
}

public String getPret() {
    return Pret.get();
}

public StringProperty pretProperty() {
    return Pret;
}

public void setPret(String pret) {
    this.Pret.set(pret);
}

}

Answer 1

您必须向 TableView 的 getSelectionModel().selectedItemProperty() 添加一个监听器。

Key code:

table.getSelectionModel().selectedItemProperty().addListener((obs, oldVal, newVal) -> 
{
    if (newVal != null) {
        tfFirstName.setText(newVal.getFirstName());
        tfLastName.setText(newVal.getLastName());
        tfEmail.setText(newVal.getEmail());
    }
});

Full Code:

主类

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class TableViewSample extends Application
{

    public static void main(String[] args)
    {
        launch(args);
    }

    @Override
    public void start(Stage stage)
    {
        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")
        );

        TableView<Person> table = new TableView();

        Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(500);
        stage.setHeight(500);

        final Label label = new Label("Address Book");
        label.setFont(new Font("Arial", 20));

        TableColumn firstNameCol = new TableColumn("First Name");
        TableColumn lastNameCol = new TableColumn("Last Name");
        TableColumn emailCol = new TableColumn("Email");
        firstNameCol.setCellValueFactory(
                new PropertyValueFactory("firstName")
        );
        lastNameCol.setCellValueFactory(
                new PropertyValueFactory("lastName")
        );
        emailCol.setCellValueFactory(
                new PropertyValueFactory("email")
        );
        table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);
        table.setItems(data);

        TextField tfFirstName = new TextField();
        TextField tfLastName = new TextField();
        TextField tfEmail = new TextField();

        table.getSelectionModel().selectedItemProperty().addListener((obs, oldVal, newVal) -> {
            if (newVal != null) {
                tfFirstName.setText(newVal.getFirstName());
                tfLastName.setText(newVal.getLastName());
                tfEmail.setText(newVal.getEmail());
            }
        });

        final VBox vbox = new VBox();
        vbox.setSpacing(5);
        vbox.setPadding(new Insets(10, 0, 0, 10));
        vbox.getChildren().addAll(label, table, new HBox(new Label("First Name: "), tfFirstName), new HBox(new Label("Last Name: "), tfLastName), new HBox(new Label("Email: "), tfEmail));

        scene.setRoot(vbox);

        stage.setScene(scene);
        stage.show();
    }
}

人物类

import javafx.beans.property.SimpleStringProperty;

public class Person
{

    private final SimpleStringProperty firstName;
    private final SimpleStringProperty lastName;
    private final SimpleStringProperty email;

    public 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);
    }

}