CheckboxField constructor
CheckboxField()
Implementation
CheckboxField() : super('CheckboxField') {
nodeRoot.style
..display = 'flex'
..textAlign = 'center'
..justifyContent = 'left'
..alignItems = 'center';
_checkBoxInput.onChange.listen((event) {
fireValueChange(value, value);
});
nodeRoot.children.add(_checkBoxInput);
nodeRoot.children.add(_label);
}