[nebula-dev] Collapsing column groups

[ceki <ceki@xxxxxx>]

Hello all,

I am are experimenting with Nebula Grid's column group feature. I was
able to successfully group columns and collapse the
group. Unfortunately, when the group is collapsed, there is no way to
expand (un-collapse) it. I initially thought there was a sizing bug in
my code. After a lengthy period of head-scratching, I discovered that
the group column disappears unless at least one of the columns in the
group is"summary-enabled", i.e. setSummary(true) is invoked on the
column.

It would be probably better if in the absence of a summary column the
column group did not entirely disappear when collapsed. A small icon 
should be left behind so that when clicked the group reappears.

In any case, many thanks to the authors for writing such great
software,

--
Ceki
http://tinyurl.com/proLogback