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From Bob Schellink <sab...@gmail.com>
Subject Re: Feature Request :column groups in tables
Date Sat, 06 Nov 2010 03:55:02 GMT
Hi Stéphane,

I'm not sure how ColumnGroups solve the problem of screen real estate? The same amount of
columns
are still rendered in the end right?

If you want to show/hide columns isn't JavaScript[1] a more appropriate tool?

Kind regards

Bob

[1]: http://p.sohei.org/stuff/jquery/columnmanager/demo/demo.html


On 5/11/2010 21:30, Stéphane NICOLAS wrote:
> Allo,
> 
> I would like to suggest a first idea that seems not so difficult to implement in click
: column groups.
> 
> /Idea :/
> 
> When I developped my first click app, I had to build a few list views using tables.
> When tables become large, I think it s a good design to have the ability to hide/unhide
columns to
> increase the readability of data as it increases focus on the most meaning full part
of them.
> 
> Nevertheless, all the time the fields of items to expose in the list were grouped. The
idea is
> nothing new, it's exactly what field sets have been designed for.
> 
> So I suggest that we had column groups in tables to mimic the behavior of fields set
for forms, but
> in tables.
> 
> /API :
> 
> /It would be nice to have an interface like this :
> ColumnGroup groupPersonalData = new ColumnGroup( <name>, <label> );
> Column columnName = new Column( <name>, <label>);
> Column columnPhone = new Column( <name>, <label>);
> 
> groupPersonalData.add( columnName );
> groupPersonalData.add( columnPhone );
> table.add( groupPersonalData );
> 
> /Rendering :/
> 
> The html would be rendered as a normal table, with a first line (above column names),
a special
> header with the name of groupPersonalData with a span of 2 (as it has 2 columns).
> 
> I got a few other ideas for fancier layouts but that would be nice already.
> 
> To hide and show the column, I would love to have a
> groupPersonalData.setVisible( <boolean> );
> but I feel like click doesn't want to go that way and would prefer let people use a css
style or css
> class to achieve that.
> 
> 
> /Implementation :/
> 
> Well, on that side, just a few words, I am sure most people here will get better ideas
than mine.
> Table class :
> - add a property List<ColumnGroup>
> - a few methods to add/remove them
> - modify getColumnCount and other related methods
> - modify rendering/template add a tr row containing ths for groups with a span attribute,
ungoruped
> columns would have an empty th of span 1 or a group one or none if they are no columngroups
in the
> table.
> 
> /FormTable/ :
> 
> The same would also be applicable to FormTable class, and FieldSets there could have
the same role
> as column groups for editable fields.
> 
> Thanks in advance for your time and feedback,
>  Stéphane
> 
> 


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