IsBlankWhenNull issue when export to HTML in Spring framework

[bobobo]

Hi,

Does anyone know why when I set the attribute IsBlankWhenNull set to true, it also removes the drawing (rectangular box) of those fields with null values when export to html? my environment is in Spring MVC.

It works fine when exporting to PDF, Excel, and also works fine when I use iReport tool to display it in html.

Thanks in advance.
Bob