public void onEvent( Event<UIModeratorManagementForm> event, UIModeratorManagementForm uiForm, String userId) throws Exception { UIPopupContainer popupContainer = uiForm.getAncestorOfType(UIPopupContainer.class); UISelectCategoryForm selectItemForum = openPopup(popupContainer, UISelectCategoryForm.class, 400, 0); selectItemForum.setSelectCateId(uiForm.setListCategoryIds()); }