Odtnhj

I hava a JavaFX table with two columns. Depending on whether the code to populate it is written before or after showing the scene, the columns fit their content or not.

Before (expected result):

After (actual result):

Why is that? Is there any way I can tell the table to do the same adjusting when I'll be loading the data asynchronously (by request), after the table was constructed and displayed?

Thanks in advance

Complete working example:

import javafx.application.Application;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

public class Example extends Application 

 @Override
 public void start(Stage primaryStage) throws Exception 
 primaryStage.setTitle("Test");
 TableView<Person> table = new TableView<>();
 ObservableList<Person> people = FXCollections.observableArrayList(
 new Person("Very very very very long name", 100),
 new Person("Not much shorter name", 44));
 TableColumn nameColumn = new TableColumn("First Name");
 nameColumn.setCellValueFactory(new PropertyValueFactory<Person, String>("name"));
 table.getColumns().add(nameColumn);
 TableColumn ageColumn = new TableColumn("Age");
 ageColumn.setCellValueFactory(new PropertyValueFactory<Person, Integer>("age"));
 table.getColumns().add(ageColumn);
// table.setItems(people); /* Here it works */
 BorderPane root = new BorderPane();
 root.setCenter(table);
 primaryStage.setScene(new Scene(root, 700, 400));
 primaryStage.show();
 table.setItems(people); /* Here it does not */
 

 public static void main(String args) 
 launch(args);
 

 public static class Person 
 private SimpleStringProperty name = new SimpleStringProperty();
 private SimpleIntegerProperty age = new SimpleIntegerProperty();
 public Person(String name, int age) 
 super();
 this.name.set(name);
 this.age.set(age);
 
 public String getName() 
 return name.get();
 
 public Integer getAge() 
 return age.get();