how to merge two adjacent grids of a QTableWidget into one?

[bookmarkernj]

I'm sorry, Maybe I did not make that clear.
Now , let's do some explaining.
I'm doing a cluster monitoring software whose gui uses Qt(now I use Qt 4.2), I want to use QTableWidget to express some kind of information of every node in cluster, for example, I want to use a row to express a node's nodeName, each cpu's efficiency, active state. Now the problem comes, a computer node may have several cpus( eg. two cpus) , but only has one active state( active or inactive), diagram as following:
___________________
|Node1 | 90% | ON |
| |-----------| |
| | 50 % | |
----------------------------------
what can I do use QTableWidget to implement the above thing ?

[jpn]

Ahh, so you want to merge cells, not whole tables. Try making use of QTableView::setSpan(). I'm not sure if I ever tried it with Qt 4.2 but at least with Qt 4.3.0 it seems to work pretty nicely.