src/Easy/Element/HTMLPreview.php
protected function getText()
    {
        if ($this->text == null)
            return null;   
        $formObj = $this->getFormObj();
        return Expression::evaluateExpression($this->text, $formObj);
    }
protected function getText()
    {
        if ($this->text == null)
            return null;   
        $formObj = $this->getFormObj();
        return Expression::evaluateExpression($this->text, $formObj);
    }
Get text of label

@return string