[pygtk] help with TreeStore

[Sandro Dentella]

On Sun, Jun 11, 2006 at 11:46:21AM +0200, Lawrence Oluyede wrote:
> >When storing number I have used 'int' but to find out that I was not 
> >allowed
> >to go back to change the value back to 'None' (TypeError: value is of the
> >wrong type for this column). Is there a way to set the value of a ListStore
> >to None in that case?
> 
> None is not an it so you can't set an int column to a non-int. You
> might change the column type.

Of course it is not. But it's funny you can leave it undefined but you
cannot revert to undefined. A parallel with database: an 'int' column
accept a NULL value, You cannot use an int colum of a TreeStore to represent
an 'int' col of a db since all NULL value would not be mapped. I resorted
using string and casting the type, but I think is not elegant.


> Have a look at:
> http://www.pygtk.org/pygtk2reference/class-gtktreemodel.html#method-gtktreemodel--get-column-type

Thanks, I missed it...

sandro

-- 
Sandro Dentella  *:-)
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