Container editors

WritableValue<Order> order = new WritableValue<>(new Order(2, 12.5), Order.class); // Order has a quantity and a price
ICustomSection totalSection;

Sections
	.integerEditor(order)
	.parent(parent)
	.valueExtractor(Order::getQuantity)
	.label("Quantity")
	.validationStrategy(ValidationStrategies.integerPositive())
	.handler((o, newValue) -> { o.setQuantity(newValue); totalSection.updateSection(); }) // the object in the container changed
	.create();

totalSection = Sections
	.customSectionBuilder(parent)
	.addLabel(LabelProperties.label().text("Total"))
	.addLabel(LabelProperties.label().text(() -> Formats.getDefaultFormats().customDecimals(order.getValue().getTotal(), 2)).font(boldFont)) // the text is a supplier
	.createSection();

public class Truck {
	private String name;
	private double capacity;
	private boolean active;
	private Driver driver;

	public String getName() { return name; }
	public void setName(String name) { this.name = name; }
	public double getCapacity() { return capacity; }
	public void setCapacity(double capacity) { this.capacity = capacity; }
	public boolean isActive() { return active; }
	public void setActive(boolean active) { this.active = active; }
	public Driver getDriver() { return driver; }
	public void setDriver(Driver driver) { this.driver = driver; }
}

public class Driver {
	private String name;

	public String getName() { return name; }
	public void setName(String name) { this.name = name; }
}

List<Truck> trucks = ...; // the trucks to edit
List<Driver> drivers = ...; // the drivers to choose from
WritableValue<Truck> selectedTruck = new WritableValue<>(); // holds the object being edited

Sections
	.<Truck, Driver>comboBoxEditor(selectedTruck) // the object type and the element type
	.parent(parent)
	.valueExtractor(Truck::getDriver)
	.label("Driver")
	.elements(drivers)
	.format((truck, driver) -> driver.getName()) // gets the object and the element
	.handler(Truck::setDriver)
	.create();

Sections
	.doubleEditor(selectedTruck)
	.parent(parent)
	.valueExtractor(Truck::getCapacity)
	.label("Capacity")
	.validationStrategy(ValidationStrategies.doublePositive())
	.handler(Truck::setCapacity)
	.addButton(Buttons.<Truck, Double>containerButton() // the action gets the object and the value
		.action((event, truck, value) -> {
			MessageBox messageBox = new MessageBox(parent.getShell(), SWT.ICON_INFORMATION);
			messageBox.setMessage("Capacity of " + truck.getName() + " = " + value);
			messageBox.open();
		}))
	.create();

Sections
	.<Truck, Driver>comboBoxEditor(selectedTruck)
	.parent(parent)
	.valueExtractor(Truck::getDriver)
	.label("Driver")
	.elements(drivers)
	.format((truck, driver) -> driver.getName())
	.handler(Truck::setDriver)
	.addButton(Buttons.<Truck, Driver>selectElementFromTable()
		.title("driver") // shown in the dialog title
		.values(() -> drivers) // elements in the table
		.columns(table -> table.column(Driver::getName).name("Name").width(200))) // table columns
	.create();