Alain Plantec a écrit :
> Hilaire Fernandes a écrit :
>> nullPointer a écrit :
>>   
>>> Then, there is not way of to improve much more that speed. I want use Pharo
>>> for commercial apps too, and surely need load lots of data.
>>>
>>>     
>>>> It seems that you're using the stepping  mechanism, it is time consuming.
>>>> also the layout managing and invalid areas redrawing. 
>>>>       
>>> Is possible fix that?
>>>     
>> What about a late instantiation mechanism for invisible cell morph
>>   
> I've  tried that (see LazyMorphTreeMorph). It seems to work well.
> A list is opened in a second whatever the number of items.
> the drawback (a serious one for very long list)  is the scrolling 
> because rows are recomputed when they become visible.
> try it with


Why not late initialization and caching. Thus rows are instantiated only 
when they are first viewed.

Hilaire


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