function onSample() { var sourceBox = scene.getBoxById("mySourceBox"); var box = scene.getBoxById("myBox"); if (box && sourceBox) { var binding = box.getDataBinding("myBinding"); if (binding) { binding.elementSource = sourceBox; binding.path = "value"; binding.bindMethod = "twoWay"; binding.validator = "toolkit:notEmpty"; binding.connect(); } } }