public function hidden ($options = [])
		{
			$this->options[ 'class' ] = ( isset($this->options[ 'class' ]) ? $this->options[ 'class' ] . ' ' : '' ) . 'hide';
			$this->parts[ '{input}' ] = Html::activeHiddenInput($this->model, $this->attribute, $options);

			return $this;
		}