By kishm on Feb 13, 2008
Creating Mutliline Header Table using JSF in the NetBeans IDE 6.0
To do this you need to use "Nested <webuijsf:tableColumn> tags".
Before we get into the steps , here is a bit of info.
1) At this time, Creating Multiple Header/Footer Rows cannot be done by setting some property etc for the table component in the IDE (i.e cannot be done visually). It requires manual tweaking with the JSP/JSF code of the page.
2) Also once the tweaks are made the table does not render in the design view of the IDE. You have to deploy and run the application to see the results.
3) There are limitations to the type of headers you can create/what tags attributes you can use etc, see http://webdev2.sun.com/woodstock-tlddocs/webuijsf/tableColumn.html for details ...