I'm trying to show some data on tableview that (e.g first name ,last name ,email etc)
I used the code from oracle documentation is like that :
import javafx.application.Application; import javafx.beans.property.SimpleStringProperty; 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.VBox; import javafx.scene.text.Font; import javafx.stage.Stage; public class TableViewSample extends Application { 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(450); stage.setHeight(500); final Label label = new Label("Address Book"); label.setFont(new Font("Arial", 20)); table.setEditable(true); TableColumn firstNameCol = new TableColumn("First Name"); firstNameCol.setMinWidth(100); firstNameCol.setCellValueFactory( new PropertyValueFactory<Person, String>("firstName")); TableColumn lastNameCol = new TableColumn("Last Name"); lastNameCol.setMinWidth(100); lastNameCol.setCellValueFactory( new PropertyValueFactory<Person, String>("lastName")); TableColumn emailCol = new TableColumn("Email"); emailCol.setMinWidth(200); emailCol.setCellValueFactory( new PropertyValueFactory<Person, String>("email")); table.setItems(data); table.getColumns().addAll(firstNameCol, lastNameCol, emailCol); final VBox vbox = new VBox(); vbox.setSpacing(5); vbox.setPadding(new Insets(10, 0, 0, 10)); vbox.getChildren().addAll(label, table); ((Group) scene.getRoot()).getChildren().addAll(vbox); stage.setScene(scene); stage.show(); } 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); } } }
I got exception :
Feb 13, 2022 8:21:24 PM javafx.scene.control.cell.PropertyValueFactory getCellDataReflectively
WARNING: Can not retrieve property 'firstName' in PropertyValueFactory: javafx.scene.control.cell.PropertyValueFactory#67bfcda1 with provided class type: class application.TableViewSample$Person
java.lang.RuntimeException: java.lang.IllegalAccessException: module javafx.base cannot access class application.TableViewSample$Person (in module myTabel) because module myTabel does not open application to javafx.base
Add the line:
opens application to javafx.base
to your module-info.Java file.
Study and learn how Java 9 modules work.
Searching for the error message will tell you about it and how to fix it.
Search also for lambda vs PropertyValueFactory. Using lambdas is an alternate way to address your issues.
Related
I recently wanted to add a CheckBox column to an existing TableView. To study the problem in isolation, I started with Example 13-6 Creating a Table and Adding Data to It. I added a BooleanProperty and accessors to the Person model class, and I added a new TableColumn with a CheckBoxTableCell as the cell factory. As shown in the image, I see a CheckBox on each row. Although all values are true, none are checked; the checkboxes are live, but setActive() is never called. Recent questions on this topic suggest that I'm missing something; I'd welcome any insight.
import javafx.application.Application;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.CheckBoxTableCell;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
/**
* Example 13-6 Creating a Table and Adding Data to It
* https://docs.oracle.com/javase/8/javafx/user-interface-tutorial/table-view.htm#CJAGAAEE
*/
public class TableViewSample extends Application {
private final TableView<Person> table = new TableView<>();
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) {
stage.setTitle("Table View Sample");
stage.setWidth(600);
stage.setHeight(400);
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
TableColumn<Person, Boolean> active = new TableColumn<>("Active");
active.setCellValueFactory(new PropertyValueFactory<>("active"));
active.setCellFactory(CheckBoxTableCell.forTableColumn(active));
TableColumn<Person, String> firstName = new TableColumn<>("First Name");
firstName.setCellValueFactory(new PropertyValueFactory<>("firstName"));
TableColumn<Person, String> lastName = new TableColumn<>("Last Name");
lastName.setCellValueFactory(new PropertyValueFactory<>("lastName"));
TableColumn<Person, String> email = new TableColumn<>("Email");
email.setCellValueFactory(new PropertyValueFactory<>("email"));
table.setItems(data);
table.getColumns().addAll(active, firstName, lastName, email);
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(8));
vbox.getChildren().addAll(label, table);
stage.setScene(new Scene(vbox));
stage.show();
}
public static class Person {
private final BooleanProperty active;
private final StringProperty firstName;
private final StringProperty lastName;
private final StringProperty email;
private Person(String fName, String lName, String email) {
this.active = new SimpleBooleanProperty(true);
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.email = new SimpleStringProperty(email);
}
public boolean getActive() {
return active.get();
}
public void setActive(boolean b) {
active.set(b);
}
public String getFirstName() {
return firstName.get();
}
public void setFirstName(String s) {
firstName.set(s);
}
public String getLastName() {
return lastName.get();
}
public void setLastName(String s) {
lastName.set(s);
}
public String getEmail() {
return email.get();
}
public void setEmail(String s) {
email.set(s);
}
}
}
Summary: As noted here, this is likely a bug; steps to avoid the pitfall include these:
Verify that the data model exports properties correctly, as shown here.
Critically examine the value of replacing PropertyValueFactory with an explicit Callback, when possible, as outlined here, here, here, here and here.
The problem is that CheckBoxTableCell can't find or bind the ObservableProperty<Boolean> based on the parameter supplied:
active.setCellFactory(CheckBoxTableCell.forTableColumn(active));
The CheckBoxTableCell defers to the table column for access to the target Boolean property. To see the effect, replace the active parameter with a Callback that returns the ObservableValue<Boolean> for row i explicitly:
active.setCellFactory(CheckBoxTableCell.forTableColumn(
(Integer i) -> data.get(i).active));
While this makes the checkboxes work, the underlying problem is that the Person class needs an accessor for the active property. Using JavaFX Properties and Binding discusses the property method naming conventions, and the Person class of the Ensemble8 tablecellfactory illustrates a working model class with a property getter for each attribute, also shown below.
With this change PropertyValueFactory can find the newly added BooleanProperty, and the original form of forTableColumn() works. Note that the convenience of PropertyValueFactory comes with some limitations. In particular, the factory's fall-through support for the previously missing property accessor goes unnoticed. Fortunately, the same accessor allows substitution of a simple Callback for each column's value factory. As shown here, instead of PropertyValueFactory,
active.setCellValueFactory(new PropertyValueFactory<>("active"));
Pass a lamda expression that returns the corresponding property:
active.setCellValueFactory(cd -> cd.getValue().activeProperty());
Note also that Person can now be private. Moreover, the use of explicit type parameters affords stronger type checking during compilation.
import javafx.application.Application;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.CheckBoxTableCell;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
/**
* https://stackoverflow.com/a/68969223/230513
*/
public class TableViewSample extends Application {
private final TableView<Person> table = new TableView<>();
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) {
stage.setTitle("Table View Sample");
stage.setWidth(600);
stage.setHeight(400);
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
TableColumn<Person, Boolean> active = new TableColumn<>("Active");
active.setCellValueFactory(cd -> cd.getValue().activeProperty());
active.setCellFactory(CheckBoxTableCell.forTableColumn(active));
TableColumn<Person, String> firstName = new TableColumn<>("First Name");
firstName.setCellValueFactory(cd -> cd.getValue().firstNameProperty());
TableColumn<Person, String> lastName = new TableColumn<>("Last Name");
lastName.setCellValueFactory(cd -> cd.getValue().lastNameProperty());
TableColumn<Person, String> email = new TableColumn<>("Email");
email.setCellValueFactory(cd -> cd.getValue().emailProperty());
table.setItems(data);
table.getColumns().addAll(active, firstName, lastName, email);
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(8));
vbox.getChildren().addAll(label, table);
stage.setScene(new Scene(vbox));
stage.show();
}
private static class Person {
private final BooleanProperty active;
private final StringProperty firstName;
private final StringProperty lastName;
private final StringProperty email;
private Person(String fName, String lName, String email) {
this.active = new SimpleBooleanProperty(true);
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
this.email = new SimpleStringProperty(email);
}
public BooleanProperty activeProperty() {
return active;
}
public StringProperty firstNameProperty() {
return firstName;
}
public StringProperty lastNameProperty() {
return lastName;
}
public StringProperty emailProperty() {
return email;
}
}
}
I know how to copy an entire cell in JavaFX's tableview, but is there a way I can only copy PART of the text in a single cell?
For example if I have the following in a cell:
1. apples
2. oranges
3. bananas
I want to be able to copy "2. oranges" from the cell without copying the entire text contents list. Currently if I click on a cell it highlights and copies the entire text.
One of the things I like to do is create options in the right-click context menu.
Key code:
//Use setRowFactory to set up the ContextMenu
table.setRowFactory(new Callback<TableView<Person>, TableRow<Person>>()
{
#Override
public TableRow<Person> call(TableView<Person> tableView)
{
final TableRow<Person> row = new TableRow<>();
final ContextMenu contextMenu = new ContextMenu();
final MenuItem copyItem = new MenuItem("copy index and first name");
copyItem.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
final Clipboard clipboard = Clipboard.getSystemClipboard();
final ClipboardContent content = new ClipboardContent();
Person tempPerson = row.getItem();
//Put the row index and first name in clipboard
content.putString(row.getIndex() + ". " + tempPerson.getFirstName());
clipboard.setContent(content);
}
});
contextMenu.getItems().add(copyItem);
// Set context menu on row, but use a binding to make it only show for non-empty rows:
row.contextMenuProperty().bind(
Bindings.when(row.emptyProperty())
.then((ContextMenu) null)
.otherwise(contextMenu)
);
return row;
}
});
Full Code - Altered code from: https://gist.github.com/james-d/7758918
Main Class
import java.util.Arrays;
import javafx.application.Application;
import javafx.beans.binding.Bindings;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.Label;
import javafx.scene.control.MenuItem;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableRow;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.input.Clipboard;
import javafx.scene.input.ClipboardContent;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javafx.util.Callback;
public class TableViewSample extends Application
{
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(450);
stage.setHeight(500);
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
firstNameCol.setMinWidth(100);
firstNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("firstName"));
TableColumn<Person, String> lastNameCol = new TableColumn<>("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("lastName"));
TableColumn<Person, String> emailCol = new TableColumn<>("Email");
emailCol.setMinWidth(200);
emailCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("email"));
table.setItems(data);
table.getColumns().addAll(Arrays.asList(firstNameCol, lastNameCol, emailCol));
table.setRowFactory(new Callback<TableView<Person>, TableRow<Person>>()
{
#Override
public TableRow<Person> call(TableView<Person> tableView)
{
final TableRow<Person> row = new TableRow<>();
final ContextMenu contextMenu = new ContextMenu();
final MenuItem copyItem = new MenuItem("copy index and first name");
copyItem.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
final Clipboard clipboard = Clipboard.getSystemClipboard();
final ClipboardContent content = new ClipboardContent();
Person tempPerson = row.getItem();
content.putString(row.getIndex() + ". " + tempPerson.getFirstName());
clipboard.setContent(content);
}
});
contextMenu.getItems().add(copyItem);
// Set context menu on row, but use a binding to make it only show for non-empty rows:
row.contextMenuProperty().bind(
Bindings.when(row.emptyProperty())
.then((ContextMenu) null)
.otherwise(contextMenu)
);
return row;
}
});
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 0, 0, 10));
vbox.getChildren().addAll(label, table);
((Group) scene.getRoot()).getChildren().addAll(vbox);
stage.setScene(scene);
stage.show();
}
}
Person Class
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package javafxapplication206;
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);
}
}
When I paint the background of a column and then I fixed the size of a cell, this happens when I hidden a column:
If I comment this line: "table.setFixedCellSize(24)" works correctly:
But I need fix the size of a cell... ¿Does this error have any solutions?
Many thanks to all and sorry for my poor English.
You can run my example:
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.CheckBox;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Test extends Application {
#Override
public void start(final Stage stage) {
// Create Items
final ObservableList<Person> data =
FXCollections.observableArrayList(new Person("Ruben", "Martin"),
new Person("Ruben", "Martin"), new Person("Ruben", "Martin"));
// Create columns
final TableColumn<Person, String> firstNameCol =
new TableColumn<>("First Name");
firstNameCol.setCellValueFactory(
new PropertyValueFactory<>("firstName"));
final TableColumn<Person, String> lastNameCol =
new TableColumn<>("Last Name");
lastNameCol.setCellValueFactory(
new PropertyValueFactory<>("lastName"));
// Create Table
final TableView<Person> table = new TableView<>();
table.setFixedCellSize(24);
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol);
// Create CheckBox
final CheckBox checkLastName = new CheckBox();
checkLastName.setText("Last Name");
checkLastName.setSelected(true);
lastNameCol.setStyle("-fx-background-color:yellow");
lastNameCol.visibleProperty().
bindBidirectional(checkLastName.selectedProperty());
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 0, 0, 10));
vbox.getChildren().addAll(table, checkLastName);
final Scene scene = new Scene(new Group());
stage.setWidth(450);
stage.setHeight(550);
((Group) scene.getRoot()).getChildren().addAll(vbox);
stage.setScene(scene);
stage.show();
}
public static void main(final String[] args) {
launch(args);
}
public static class Person {
private final SimpleStringProperty firstName;
private final SimpleStringProperty lastName;
private Person(final String fName, final String lName) {
this.firstName = new SimpleStringProperty(fName);
this.lastName = new SimpleStringProperty(lName);
}
public String getFirstName() {
return this.firstName.get();
}
public void setFirstName(final String fName) {
this.firstName.set(fName);
}
public String getLastName() {
return this.lastName.get();
}
public void setLastName(final String fName) {
this.lastName.set(fName);
}
}
}
Probably this is a workaround but it works:
StringBinding sb = Bindings.when(lastNameCol.visibleProperty())
.then("-fx-background-color:yellow")
.otherwise("");
lastNameCol.styleProperty().bind(sb);
How can I show a tooltip for each row of a TableView?
An Example:
When I put the mouse over a specific table row it give me the details of this row's data.
Thank You
Use a row factory, and add the tooltip to the TableRow:
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
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.TableRow;
import javafx.scene.control.TableView;
import javafx.scene.control.Tooltip;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
;
public class TableViewSample extends Application {
private final TableView<Person> table = new TableView<>();
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(450);
stage.setHeight(500);
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
table.setRowFactory(tv -> new TableRow<Person>() {
private Tooltip tooltip = new Tooltip();
#Override
public void updateItem(Person person, boolean empty) {
super.updateItem(person, empty);
if (person == null) {
setTooltip(null);
} else {
tooltip.setText(person.getFirstName()+" "+person.getLastName());
setTooltip(tooltip);
}
}
});
TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
firstNameCol.setMinWidth(100);
firstNameCol.setCellValueFactory(
new PropertyValueFactory<>("firstName"));
TableColumn<Person, String> lastNameCol = new TableColumn<>("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(
new PropertyValueFactory<>("lastName"));
TableColumn<Person, String> emailCol = new TableColumn<>("Email");
emailCol.setMinWidth(200);
emailCol.setCellValueFactory(
new PropertyValueFactory<>("email"));
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 0, 0, 10));
vbox.getChildren().addAll(label, table);
((Group) scene.getRoot()).getChildren().addAll(vbox);
stage.setScene(scene);
stage.show();
}
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);
}
}
}
You could create a dynamic TableRow implementation:
import java.util.function.Function;
import javafx.scene.control.TableRow;
import javafx.scene.control.Tooltip;
public class TooltipTableRow<T> extends TableRow<T> {
private Function<T, String> toolTipStringFunction;
public TooltipTableRow(Function<T, String> toolTipStringFunction) {
this.toolTipStringFunction = toolTipStringFunction;
}
#Override
protected void updateItem(T item, boolean empty) {
super.updateItem(item, empty);
if(item == null) {
setTooltip(null);
} else {
Tooltip tooltip = new Tooltip(toolTipStringFunction.apply(item));
setTooltip(tooltip);
}
}
}
And set it up like this in the initialize() of your controller:
personTableView.setRowFactory((tableView) -> {
return new TooltipTableRow<Person>((Person person) -> {
return person.getFirstName()+" "+person.getLastName();
});
});
This code is supposed to show a table with value in it, the columns and rows are added dinamicly , the idea of the program is to show a matrix in a tableview ... anyway it shows empty rows, What is the solution ?
private TableView MSTab;
float MS[][]=new float[n][n];
for (int s = 1; s < n+1; s++){
TableColumn a = new TableColumn(Integer.toString(s));
MSTab.getColumns().add(a);
}
ObservableList<String> row = FXCollections.observableArrayList();
for (int l=0;l<n;l++){
row.removeAll(row);
for (int s=0;s<n;s++){
row.add(Float.toString(MS[l][s]));
}
MSTab.getItems().add((ObservableList) row);
}
There is so much wrong in the code. Please have a look at the official tutorial.
SSCCE:
import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
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.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
public class TableViewSample extends Application {
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(450);
stage.setHeight(500);
final Label label = new Label("Address Book");
label.setFont(new Font("Arial", 20));
table.setEditable(true);
TableColumn firstNameCol = new TableColumn("First Name");
firstNameCol.setMinWidth(100);
firstNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("firstName"));
TableColumn lastNameCol = new TableColumn("Last Name");
lastNameCol.setMinWidth(100);
lastNameCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("lastName"));
TableColumn emailCol = new TableColumn("Email");
emailCol.setMinWidth(200);
emailCol.setCellValueFactory(
new PropertyValueFactory<Person, String>("email"));
table.setItems(data);
table.getColumns().addAll(firstNameCol, lastNameCol, emailCol);
final VBox vbox = new VBox();
vbox.setSpacing(5);
vbox.setPadding(new Insets(10, 0, 0, 10));
vbox.getChildren().addAll(label, table);
((Group) scene.getRoot()).getChildren().addAll(vbox);
stage.setScene(scene);
stage.show();
}
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);
}
}
}