logo
down
shadow

How do I create a JavaFX 8 ComboBox which can bind to a field on a seperate POJO


How do I create a JavaFX 8 ComboBox which can bind to a field on a seperate POJO

By : user2954505
Date : November 22 2020, 10:31 AM
will help you I was not able to change my datamodel so I found the following solution which works.
code :
// Handle ComboBox event.
myComboBox.setOnAction((event) -> {
    LookUpDataValue selected = myComboBox.getSelectionModel().getSelectedItem();
    if(selected != null){
        dto.setForeignKeyId(selected.getId());
    }
});


Share : facebook icon twitter icon
Is it possible to bind a StringProperty to a POJO's String in JavaFX?

Is it possible to bind a StringProperty to a POJO's String in JavaFX?


By : Yuvarani Yamini
Date : March 29 2020, 07:55 AM
may help you . You can obviously set the values in Entity without doing anything except using a listener in JavaFX. If you want to go the other way you can add java.beans.PropertyChangeSupport. It's not in a javafx package.
code :
package bindpojo;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class BindPojo extends Application {
    StringProperty fxString = new SimpleStringProperty();
    StringProperty tmpString = new SimpleStringProperty();

    @Override
    public void start(Stage primaryStage) {
        VBox vbox = new VBox();
        TextField text = new TextField();
        Label label1 = new Label();
        Label label2 = new Label();
        Entity entity = new Entity("");
        vbox.getChildren().addAll(text,label1,label2);
        Scene scene = new Scene(vbox, 300, 200);
        primaryStage.setScene(scene);
        primaryStage.show();

        fxString.bindBidirectional(text.textProperty());

        fxString.addListener(new ChangeListener<String>() {
            @Override
            public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
                entity.setValue(newValue);
                label1.setText(entity.getValue());
            }
        });

        entity.addPropertyChangeListener(new PropertyChangeListener() {
            @Override
            public void propertyChange(PropertyChangeEvent evt) {
                tmpString.set(evt.getNewValue().toString());
            }
        });

        label2.textProperty().bind(tmpString);
    }

    public class Entity {
    private String m_Value;
    private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);
    public Entity(String value) { m_Value = value; }
    public String getValue() { return m_Value; }
    public void setValue(String value) {
        pcs.firePropertyChange("m_Value", m_Value, value);
        m_Value = value;
    }
    public void addPropertyChangeListener(PropertyChangeListener listener) {
                    pcs.addPropertyChangeListener(listener);
                }
    }
}
Bind combobox property of selected item in combobox to field

Bind combobox property of selected item in combobox to field


By : Perhack
Date : March 29 2020, 07:55 AM
I wish this help you I have an issue with binding in ComboBox. I have searched in Google and so, but I haven't been able to find the answer. , The solution was simple as always:
code :
SelectedValuePath="Value"
SelectedValue="{Binding Path=Firm, Mode=TwoWay}">
How to bind ComboBox to a list in JavaFX?

How to bind ComboBox to a list in JavaFX?


By : salman
Date : March 29 2020, 07:55 AM
may help you . No there is no way to bind a simple list, since it's not observable. Even with a ObservableList, there would be the problem of the updates coming from a different thread.
You could however use a synchronized list and use the value property to pass the current size, which would allow you to add the items via listener.
code :
@Override
public void start(Stage primaryStage) {
    ListView<String> listView = new ListView<>();
    List<String> targetList = listView.getItems();
    final List<String> ips = Collections.synchronizedList(new ArrayList<>());
    Task<Integer> task = new Task<Integer>() {

        @Override
        protected Integer call() throws Exception {
            Random random = new Random();
            int size;
            for (size = 0; size < 100; size++) {
                ips.add(Integer.toString(size));
                updateValue(size);
                Thread.sleep(random.nextInt(500));
            }

            return size;
        }

    };
    task.valueProperty().addListener((observable, oldValue, newValue) -> {
        // add values not yet in the target list.
        for (int i = targetList.size(), newSize = newValue; i < newSize; i++) {
            targetList.add(ips.get(i));
        }
    });

    new Thread(task).start();

    Scene scene = new Scene(listView);

    primaryStage.setScene(scene);
    primaryStage.show();
}
ips = comboBox.getItems();

Task task = new Task<Void>() {
    @Override
    public Void call() throws UnknownHostException {
        InetAddress localhost = InetAddress.getLocalHost();
        byte[] ip = localhost.getAddress();
        for (int i = 10; i <= max; i++) {
            if (isCancelled()) {
                break;
            }
            try {
                ip[3] = (byte) i;
                InetAddress address = InetAddress.getByAddress(ip);

                if (address.isReachable(100)) {
 //============================== Populating List ===============//
                    final String hostName = address.getHostName();
                    // do update on application thread
                    Platform.runLater(() -> ips.add(hostName));
                }
            } catch (Exception e) {
                System.err.println(e);
            }
            updateProgress(i, max);

        }
        return null;
    }
};
JavaFX - Bind LinkedHashMap to ComboBox

JavaFX - Bind LinkedHashMap to ComboBox


By : Sidiq
Date : March 29 2020, 07:55 AM
Hope this helps I have LinkedHashMap with data from database. , You should use an ObservableMap:
code :
private Map<Integer, String> linkedHashMap = new LinkedHashMap<>();
....

ComboBox<String> c = new ComboBox<>();
ObservableMap<Integer, String> observableMap = FXCollections.observableMap(linkedHashMap);
observableMap.addListener(new MapChangeListener<Integer, String>() {
    @Override
    public void onChanged(
            javafx.collections.MapChangeListener.Change<? extends Integer, ? extends String> change) {
        if(change.wasAdded()) {
            c.getItems().add(change.getValueAdded());
        } else if(change.wasRemoved()) {
            c.getItems().remove(change.getValueRemoved());
        }
    }
});
observableMap.put(someInt, "someValue");
How to bind methods to combobox in JavaFX?

How to bind methods to combobox in JavaFX?


By : motyros
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , In your controller define an onAction(ActionEvent event) action handler for your combo box. Link the fxml to your controller action handler via onAction="#choiceMade" (where choiceMade is the arbitrary name I chose for the action handler method). In your action handler perform a switch on the combo box value to invoke the appropriate method handler for the selected value.
code :
<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.String?>
<?import javafx.collections.FXCollections?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.ComboBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.VBox?>

<VBox maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="104.0" prefWidth="226.0" spacing="10.0" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.ComboActionController">
   <children>
      <Label fx:id="choiceLabel" />
      <ComboBox fx:id="comboShapes" onAction="#choiceMade" prefWidth="150.0" value="Random">
         <items>
            <FXCollections fx:factory="observableArrayList">
               <String fx:value="Random" />
               <String fx:value="Small Exploder" />
               <String fx:value="Gospler Glider Run" />
               <String fx:value="Glider" />
            </FXCollections>
         </items>
      </ComboBox>
   </children>
   <padding>
      <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
   </padding>
</VBox>
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class ComboActionApp extends Application {
    @Override
    public void start(Stage stage) throws Exception {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("ComboAction.fxml"));
        Parent root = loader.load();
        stage.setScene(new Scene(root));
        stage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;

public class ComboActionController {

    @FXML
    private ComboBox<String> comboShapes;

    @FXML
    private Label choiceLabel;

    @FXML
    void choiceMade(ActionEvent event) {
        String choice = comboShapes.getValue();

        choiceLabel.setText(
                "Chosen: " + choice
        );

        switch (choice) {
            case "Random":
                randomChosen();
                break;

            case "Small Exploder":
                smallExploderChosen();
                break;

            case "Gospler Glider Run":
                gliderChosen();
                break;
        }
    }

    private void gliderChosen() {
        // todo implement action handler.
    }

    private void smallExploderChosen() {
        // todo implement action handler.
    }

    private void randomChosen() {
        // todo implement action handler.
    }

}
Related Posts Related Posts :
  • Looking for simplest option to render Razor cshtml pages in a console application without any web server
  • Evaluating variables at a specific time in Modelica
  • When I run the Application, only "web" engine is running in GlassFish. "webservices" is not started
  • How To Set MIME Type Of Google Drive File
  • Remove Missing Values in Weka
  • Reloading a UICollectionView using reloadData method returns immediately before reloading data
  • carrot2 - can I cluster documents from a folder?
  • StreamSocket has no Close Implementation in C#
  • Rails, Foundation 4, Respond.js not working properly in IE8
  • How can i create imagesurface from cairo xlib's Graphics Context using cairo and x11 Api's?
  • CKEditor "overflow: scroll" on parent causes toolbar to freeze at initial position
  • Differences between components and controls in ENYO
  • Photoshop making isometric?
  • Does Intel IPP 8.0 support in-place operations?
  • What is Object dictionary in CANOpen?
  • Example of orbBasic Indexed User Variables
  • convert to ABSOLUTE in logback
  • How to conditionally download file using p:fileDownload
  • Error on pod install
  • Set HTTP GET Parameters in Finagle
  • different attack that uses sql injection
  • How can I change my xampp username not as 'root'
  • AMQP Content header payload structure
  • Apache POI formula evaluation not working for Excel IF
  • How can I trace RESTEasy's dispatch?
  • Map Freezes on iOS 7 with Google Maps SDK 1.4
  • Comparing lists, is the subset list within the first list
  • Non-ascii character highlight in Sublime Text 2
  • Installing Magit in Aquamacs
  • Receiving error - System.Net.Mail.SmtpException: 4.3.2 try again later
  • Coreaudio render callback in monotouch
  • The command 'yarn --v' also initiates 'yarn install' and installs packages automatically. Why is this happening?
  • save multiple matches in a list (grep or awk)
  • Can a number register be used in a groff request?
  • Mapping FAQ with RASA for large dataset (2000+)
  • Fragment not receiving LiveData updates after remove + add
  • FitText.js makes text bigger rather than smaller
  • ARM - Implementing stack with load/store multiple register values
  • How to check if a ChromeCast Session is already in progress
  • ngForm inside a Carousel Slide in UI Bootstrap not working
  • Clearing attributes in Tritium
  • "vagrant up" failing: Vagrant VM failed to remain in the running state
  • ftsearch returning empty docs
  • What are the advantages of setting "hive.exec.parallel" to false in Hive ?
  • Creating a root certificate in FiddlerCore
  • How to access app.config in a blueprint?
  • DB2 RECORDSET table name converted to uppercase
  • Resizing the superview according to the subviews
  • IExpress - Disable Compression
  • Getting InvalidProtocolBufferException while running oozie job
  • What are the differences between Play run and start?
  • How can I share props in ReasonReact?
  • Task.Delay is skipped
  • Parsley.js Password Confirm doesn‘t work
  • How to get all registred 'browser:resource' in Plone
  • Overriding page_list controller inside a package in Concrete5.6.1.2
  • Robolectric 2.x - dependent jars are downloading while running the tests
  • Setting Flyout to Main Frame Navigation(Windows 8.1 app store)
  • Build project - Nuget Error
  • How to recover admin password for SonarQube
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org