Re: [Gtk2hs-users] How to sort a treeview?

[Magicloud <mag...@gm...>]

Why the document on www.haskell.org/gtk2hs is still 0.9.12, which is so 
different from 0.9.13....

Axel Simon wrote:
> On Thu, 2008-12-04 at 15:18 +0800, Magicloud wrote:
>   
>> Hi,
>>    I have a treeview with a liststore model. And I want to do "click on 
>> title to sort". In the C binding of gtk, this is easy, there are some 
>> sort methods of treeview. But in haskell binding, I cannot find these 
>> functions.
>>    Could someone help me? Thanks.
>>     
>
>
> The C models ListStore and TreeStore implement the TreeSortable
> interface. The corresponding Haskell models do not and I don't think we
> ever want to implement these. The reason for this is that it's fairly
> easy to wrap your model into a TreeModelSort proxy that is able to sort
> the wrapped model in any way you like. This is demonstrated in
> TreeSort.hs in demo/treeList. You might need the darcs head to use this.
>
> Axel.
>
>
>
>