get JavaFX Node by ID - Java JavaFX

Java examples for JavaFX:Node

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Description

get JavaFX Node by ID

Demo Code


import java.io.File;
import java.util.Optional;
import javafx.scene.Node;
import javafx.scene.control.TextInputDialog;
import javafx.stage.DirectoryChooser;
import javafx.stage.Stage;

public class Main{
    @SuppressWarnings("unchecked")
    public static <T extends Node> T getNode(Node root, String id) {
        final Node node = root.lookup(id);
        if (node == null) {
            throw new NullPointerException(
                    "cannot find child node fx:id for argument: " + id);
        }/*  www .  j  av a2 s . c  o  m*/

        return (T) node;
    }
}

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