Java - 单击另一个舞台上的按钮时如何将数据添加到表视图

Question

好的，我创建了一个表格视图，并且有按钮（ADDROW）。当我按下该按钮时，会打开一个新窗口，我可以在其中 填充这些文本字段，这些文本字段的信息将添加到表格中，但它无法添加该信息。我的所有方法都是正确的，因为我尝试在该方法上打印出一些内容，并且它正确地打印了这些内容。怎么解决？

--这是代码

package javafxtableviewaddrows;

import java.io.IOException; import java.net.URL; import java.util.ResourceBundle; import javafx.application.Platform; import javafx.collections.FXCollections; import javafx.collections.ObservableList; import javafx.collections.transformation.FilteredList; import javafx.collections.transformation.SortedList; import javafx.event.ActionEvent; import javafx.fxml.FXML; import javafx.fxml.FXMLLoader; import javafx.fxml.Initializable; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.scene.control.Button; 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.paint.Color; import javafx.stage.Stage; import javafx.stage.StageStyle;

public class FXMLDocumentController implements Initializable {

@FXML
private Label label;
@FXML private TextField filterField;
@FXML private TableView<Customer> tableview;
Button []rbutton=new Button[400];

     @FXML  public ObservableList<Customer> dataList = FXCollections.observableArrayList();    




private void calculation(){
    TableColumn id=new TableColumn("ID");
    TableColumn name=new TableColumn("NAME");
    TableColumn address=new TableColumn("ADDRESS");
    TableColumn description=new TableColumn("DESCRIPTION");
    TableColumn quantity=new TableColumn("QUANTITY");
    TableColumn transiction=new TableColumn("TRANSICTION");
    TableColumn payment=new TableColumn("PAYMENT");
    TableColumn button=new TableColumn("PREVIEW");
    
    tableview.getColumns().addAll(id,name,address,description,quantity,transiction,payment,button);
    
     for(int i=0;i<rbutton.length;i++){
        rbutton[i]=new Button();
    }
    dataList = FXCollections.observableArrayList(
           new Customer("1", "AMIT", "east west", "batman tshirt", "= 1","/NO","NOT COMPLETED",rbutton[0]),
new Customer("2", "AMIT", "east west", "batman tshirt", "= 1","/NO","NOT COMPLETED",rbutton[1]),
 new Customer("3", "AMIT", "east west", "batman tshirt", "= 1","/NO","NOT COMPLETED",rbutton[2]),
 new Customer("4", "AMIT", "east west", "batman tshirt", "= 1","/NO","NOT COMPLETED",rbutton[3])
);  
                           
    id.setCellValueFactory(new PropertyValueFactory("id"));       
    name.setCellValueFactory(new PropertyValueFactory("name"));        
    address.setCellValueFactory(new PropertyValueFactory("address"));        
    description.setCellValueFactory(new PropertyValueFactory("description"));        
    quantity.setCellValueFactory(new PropertyValueFactory("quantity")); 
    transiction.setCellValueFactory(new PropertyValueFactory("transiction")); 
    payment.setCellValueFactory(new PropertyValueFactory("payment")); 
    button.setCellValueFactory(new PropertyValueFactory("button")); 
    
    
    
    
   FilteredList<Customer> filteredData = new FilteredList<>(dataList, b -> true);
    
    // 2. Set the filter Predicate whenever the filter changes.
    filterField.textProperty().addListener((observable, oldValue, newValue) -> {
        filteredData.setPredicate(employee -> {
            // If filter text is empty, display all persons.
                            
            if (newValue == null || newValue.isEmpty()) {
                return true;
            }
            
            // Compare first name and last name of every person with filter text.
            String lowerCaseFilter = newValue.toLowerCase();
            
            if (employee.getId().toLowerCase().indexOf(lowerCaseFilter) != -1 ) {
                return true; // Filter matches first name.
            } else if (employee.getName().toLowerCase().indexOf(lowerCaseFilter) != -1) {
                return true; // Filter matches last name.
            }
            else if (employee.getPayment().toLowerCase().indexOf(lowerCaseFilter) != -1)
                 return true;
                 else  
                     return false; // Does not match.
        });
    });
    
    
    SortedList<Customer> sortedData = new SortedList<>(filteredData);
    
    
    sortedData.comparatorProperty().bind(tableview.comparatorProperty());
    
    
    tableview.setItems(sortedData);
}
public void initialize(URL url, ResourceBundle rb) {  

         calculation();  
    
}  
@FXML private void deleteRow(ActionEvent event) throws IOException{
dataList.remove(tableview.getSelectionModel().getSelectedItem());

} @FXML public void addrows(String id, String name, String address, String description, String quantity, String transiction, String payment) { Customer customer = new Customer(id, name, address, description, quantity, transiction, payment,rbutton[4]); dataList.add(customer); Platform.runLater(() -> {
    int row = tableview.getItems().size() - 1;
    tableview.getSelectionModel().select(row);
    tableview.scrollTo(row);
});

} @FXML public void addRow(ActionEvent event) throws IOException{ FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("dashbord.fxml")); Parent root1 = (Parent) fxmlLoader.load(); Stage stage = new Stage(); stage.setScene(new Scene(root1));stage.show(); }

}

--Customer 类代码

package javafxtableviewaddrows;

import javafx.beans.property.SimpleStringProperty; import javafx.scene.control.Button;

public class Customer { private SimpleStringProperty id; private SimpleStringProperty name; private SimpleStringProperty address; private SimpleStringProperty description; private SimpleStringProperty quantity; private SimpleStringProperty transiction; private SimpleStringProperty payment; private Button button;
public Customer(String id, String name, String address, String description, String quantity, String transiction, String payment, Button button) {
    this.id = new SimpleStringProperty(id);
    this.name = new SimpleStringProperty(name);
    this.address = new SimpleStringProperty(address);
    this.description = new SimpleStringProperty(description);
    this.quantity = new SimpleStringProperty(quantity);
    this.transiction = new SimpleStringProperty(transiction);
    this.payment = new SimpleStringProperty(payment);
    this.button = button;
    this.button.setText("Preview");
}

public String getId() {
    return id.get();
}

public String getName() {
    return name.get();
}

public String getAddress() {
    return address.get();
}

public String getDescription() {
    return description.get();
}

public String getQuantity() {
    return quantity.get();
}

public String getTransiction() {
    return transiction.get();
}

public String getPayment() {
    return payment.get();
}

public Button getButton() {
    return button;
}

public void setId(String id) {
    this.id.set(id);
}

public void setName(String name) {
    this.name.set(name);
}

public void setAddress(String address) {
    this.address.set(address);
}

public void setDescription(String description) {
    this.description.set(description);
}

public void setQuantity(String quantity) {
    this.quantity.set(quantity);
}

public void setTransiction(String transiction) {
    this.transiction.set(transiction);
}

public void setPayment(String payment) {
    this.payment.set(payment);
}

public void setButton(Button button) {
    this.button = button;
}
}

--dashboardController代码

package javafxtableviewaddrows;

import java.io.IOException; import java.net.URL; import java.util.ResourceBundle; import javafx.event.ActionEvent; import javafx.fxml.FXML; import javafx.fxml.FXMLLoader; import javafx.fxml.Initializable; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.scene.control.TextField; import javafx.scene.paint.Color; import javafx.stage.Stage;

public class DashbordController implements Initializable {
@FXML
private TextField id;
@FXML
private TextField name;
@FXML
private TextField address;
@FXML
private TextField description;
@FXML
private TextField quantity;
@FXML
private TextField transiction;
@FXML
private TextField payment;



public void initialize(URL url, ResourceBundle rb) {
   
}    

@FXML
private void addtotable(ActionEvent event) throws IOException {
     FXMLLoader loader=new FXMLLoader (getClass().getResource("FXMLDocument.fxml"));
     Parent root=loader.load();
     FXMLDocumentController nd=loader.getController();
     
    nd.addrows(id.getText(), name.getText(), address.getText(), description.getText(), quantity.getText(), transiction.getText(), payment.getText());
   
}
}

我期待信息会进入表格视图，它会显示我从另一个阶段输入的信息......

Answer 1

我建议你了解@James_D 和@jewelsea 的提议。我认为这些想法可以带来更好的

JavaFX

编程。如果您目前没有时间研究这些想法，我建议使用

Custom Login Dialog

。

主要

import java.util.Optional;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.beans.binding.Bindings;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonBar.ButtonData;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Dialog;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;

public class App extends Application {
   TableView<Person> table = new TableView();
   ObservableList<Person> items;
   
   Button btnAddPerson = new Button("Add Person");
   
    public static void main(String[] args) {
        App.launch(args);
    }

    @Override
    public void start(Stage stage) {        
        setupTableView();
        setupButton();
        
        HBox root = new HBox( table, btnAddPerson);
        root.setPadding(new Insets(5));
        stage.setTitle("TableView and ListView");

        Scene scene = new Scene(root, 450, 300);
        stage.setScene(scene);
        stage.show();
    }
    
    
    private void setupTableView()
    {
        // Create column UserName (Data type of String).
        TableColumn<Person, String> idCol = new TableColumn("ID");
        TableColumn<Person, String> firstNameCol = new TableColumn("First Name");
        TableColumn<Person, String> lastNameCol = new TableColumn("Last Name");
        TableColumn<Person, String> emailCol = new TableColumn("Email");
        table.getColumns().addAll(idCol, firstNameCol, lastNameCol, emailCol);

        // Get value from property of Person. .
        idCol.setCellValueFactory(cellData -> cellData.getValue().idProperty().asString());        
        firstNameCol.setCellValueFactory(cellData -> cellData.getValue().firstNameProperty());
        lastNameCol.setCellValueFactory(cellData -> cellData.getValue().lastNameProperty());
        emailCol.setCellValueFactory(cellData -> cellData.getValue().emailProperty());
      
        // Display row data
        items = getUserList();
        table.setItems(items);
    }
    
    private ObservableList<Person> getUserList() {
        Person user1 = new Person(1, "Susan", "smith", "[email protected]");
        Person user2 = new Person(2, "Anne", "mcneil", "[email protected]");
        Person user3 = new Person(3, "Kenvin", "white", "[email protected]");
        
        return FXCollections.observableArrayList(user1, user2, user3);
    }
    
    private void setupButton()
    {
        btnAddPerson.setOnAction((actionEvent) -> {
            showCustomDialog();
        });        
    }
    
    private void showCustomDialog()
    {
        // Create the custom dialog.
        Dialog<Person> dialog = new Dialog<>();
        dialog.setTitle("Add Person Dialog");
        dialog.setHeaderText("Add Person");

        // Set the icon (must be included in the project).
        //dialog.setGraphic(new ImageView(this.getClass().getResource("login.png").toString()));

        // Set the button types.
        ButtonType btntAdd = new ButtonType("Add", ButtonData.OK_DONE);
        dialog.getDialogPane().getButtonTypes().addAll(btntAdd, ButtonType.CANCEL);

        // Create the username and password labels and fields.
        GridPane grid = new GridPane();
        grid.setHgap(10);
        grid.setVgap(10);
        grid.setPadding(new Insets(20, 150, 10, 10));

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

        grid.add(new Label("ID:"), 0, 0);
        grid.add(tfId, 1, 0);
        grid.add(new Label("First Name:"), 0, 1);
        grid.add(tfFirstName, 1, 1);
        grid.add(new Label("Last Name:"), 0, 2);
        grid.add(tfLastName, 1, 2);
        grid.add(new Label("Email Name:"), 0, 3);
        grid.add(tfEmail, 1, 3);

        // Enable/Disable login button depending on whether a username was entered.
        Button btnAdd = (Button)dialog.getDialogPane().lookupButton(btntAdd);
        btnAdd.disableProperty().bind(
            Bindings.isEmpty(tfId.textProperty())
            .or(Bindings.isEmpty(tfFirstName.textProperty()))
            .or(Bindings.isEmpty(tfLastName.textProperty()))
            .or(Bindings.isEmpty(tfEmail.textProperty()))
        );

        dialog.getDialogPane().setContent(grid);

        // Request focus on the username field by default.
        Platform.runLater(() -> tfId.requestFocus());

        // Convert the result to a username-password-pair when the login button is clicked.
        dialog.setResultConverter(dialogButton -> {
            if (dialogButton == btntAdd) {
                return new Person(Integer.parseInt(tfId.getText()), tfFirstName.getText(), tfLastName.getText(), tfEmail.getText());
            }
            return null;
        });

        Optional<Person> result = dialog.showAndWait();
        result.ifPresent(items::add);
    }
    
    
}

人

import javafx.beans.property.IntegerProperty;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;

public class Person {        
    private final IntegerProperty id;
    private final StringProperty firstName;
    private final StringProperty lastName;
    private final StringProperty email;

    public Person(int id, String fName, String lName, String email) {
        this.id = new SimpleIntegerProperty(id);
        this.firstName = new SimpleStringProperty(fName);
        this.lastName = new SimpleStringProperty(lName);
        this.email = new SimpleStringProperty(email);
    }

    public int getId()
    {
        return id.get();
    }

    public void setId(int id)
    {
        this.id.set(id);
    }

    public IntegerProperty idProperty()
    {
        return id;
    }

    public String getFirstName() {
        return firstName.get();
    }

    public void setFirstName(String fName) {
        firstName.set(fName);
    }

    public StringProperty firstNameProperty()
    {
        return firstName;
    }

    public String getLastName() {
        return lastName.get();
    }

    public void setLastName(String fName) {
        lastName.set(fName);
    }

    public StringProperty lastNameProperty()
    {
        return lastName;
    }

    public String getEmail() {
        return email.get();
    }

    public void setEmail(String fName) {
        email.set(fName);
    }

    public StringProperty emailProperty()
    {
        return email;
    }

    @Override 
    public String toString()
    {
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("id: ").append(this.id.get())
                .append("\tName:").append(this.firstName.get()).append(" ").append(this.lastName.get())
                .append("\temail: ").append(this.email.get());

        return stringBuilder.toString();
    }       
}

输出