(FormWidget)UiUtil.readAttribute(pageContext, UiFormTag.FORM_KEY_REQUEST, PageContext.REQUEST_SCOPE);
//In case the tag is in formElement tag
if (id == null && getAttribute(UiFormElementTag.ID_KEY_REQUEST, PageContext.REQUEST_SCOPE) != null)
id = (String) getAttribute(UiFormElementTag.ID_KEY_REQUEST, PageContext.REQUEST_SCOPE);
if (id == null) throw new UiMissingIdException(this);
formElementViewModel =
(FormElement.ViewModel) UiWidgetUtil.traverseToSubWidget(form, id)._getViewable().getViewModel();
// Get control
controlViewModel = (formElementViewModel).getControl();