wxruby users - Dec 2009 - How to make a Grid reread the number of rows in a Table?

I have used GridTableBase to make and display a Table using a Grid.

But if I add a new row to the Table the Grid will not display a new row.

So if I start with 9 rows in the table and add a row, so there is 
10 rows in the table. But the Grid will only display 9 rows.

Is seems like the Grid don''t reread the the numbers of rows from 
the Table.
 
How can I force the Grid to reread the number of rows?

Svend Haugaard S?rensen wrote:
> I have used GridTableBase to make and display a Table using a Grid.
>
> But if I add a new row to the Table the Grid will not display a new row.
>
> So if I start with 9 rows in the table and add a row, so there is 
> 10 rows in the table. But the Grid will only display 9 rows.
>
> Is seems like the Grid don''t reread the the numbers of rows from 
> the Table.
>  
> How can I force the Grid to reread the number of rows?
grid.refresh(), I think

alex

On Sun, 06 Dec 2009 05:14:06 +0000
Alex Fenton <alex at pressure.to> wrote:
> Svend Haugaard S?rensen wrote:
> > I have used GridTableBase to make and display a Table using a Grid.
> >
> > But if I add a new row to the Table the Grid will not display a new
> > row.
> >
> > So if I start with 9 rows in the table and add a row, so there is 
> > 10 rows in the table. But the Grid will only display 9 rows.
> >
> > Is seems like the Grid don''t reread the the numbers of rows
from
> > the Table.
> >  
> > How can I force the Grid to reread the number of rows?
> 
> grid.refresh(), I think
grid.refresh and grid.force_refresh only update the data in the cells
but not the number of rows.


 


> 
> alex
> _______________________________________________
> wxruby-users mailing list
> wxruby-users at rubyforge.org
> http://rubyforge.org/mailman/listinfo/wxruby-users

On Sun, 6 Dec 2009 16:50:12 +0100
Svend Haugaard S?rensen <shs at demosophia.net> wrote:
> On Sun, 06 Dec 2009 05:14:06 +0000
> Alex Fenton <alex at pressure.to> wrote:
> 
> > Svend Haugaard S?rensen wrote:
> > > I have used GridTableBase to make and display a Table using a
> > > Grid.
> > >
> > > But if I add a new row to the Table the Grid will not display a
> > > new row.
Okay I solved it by dropping the table and making a subclass of Grid.
And then using ''append_rows'' and
''delete_rows'' from the Grid class.

It seems like ''set_table'' in Grid makes a clone of the table,
and
thereby make it impossible to manipulate the table directly.

Thanks for the help.

> Okay I solved it by dropping the table and making a subclass of Grid.
> And then using ''append_rows'' and
''delete_rows'' from the Grid class.
> 
> It seems like ''set_table'' in Grid makes a clone of the
table, and
> thereby make it impossible to manipulate the table directly.
Can anyone confirm this is the way to go?
-- 
Posted via http://www.ruby-forum.com/.

Tony Meier wrote:
> Can anyone confirm this is the way to go?
Answering my own question - yes, that seems to do the trick. When the 
underlying data changes, simply create a new table (a subclass of 
GridTableBase to be exact) and call mygrid.set_table again. Voila.
-- 
Posted via http://www.ruby-forum.com/.

On 23/02/2010 15:27, Tony Meier wrote:
>> It seems like ''set_table'' in Grid makes a clone of
the table, and
>> thereby make it impossible to manipulate the table directly.
>>      
> Can anyone confirm this is the way to go?
>    
Yes, definitely. I looked at wxWidgets underlying C++ code for this a 
while back. It clones the C++ object, so it''s likely the Ruby Grid
class
will continue to have this behaviour.

a

On 23/02/2010 15:27, Tony Meier wrote:
>> It seems like ''set_table'' in Grid makes a clone of
the table, and
>> thereby make it impossible to manipulate the table directly.
>>      
> Can anyone confirm this is the way to go?
>    
Yes, definitely. I looked at wxWidgets underlying C++ code for this a 
while back. It clones the C++ object, so it''s likely the Ruby Grid
class
will continue to have this behaviour.

a