[Gtk-sharp-list] On a ListStore moving items on the list... some questions!

[fpiraneo]

Hi Chris,

thank you for your answer!


Christopher David Howie wrote:
> 
> On 05/19/2010 09:29 AM, fpiraneo wrote:
>> 1. on the documents above it's written: "If position is null, iter will
>> be
>> moved to point to the end of the list" but if i use such writings:
>> "lsPagesSelected.MoveAfter(stIter, null );" the program won't compile;
>> same
>> result when casting the "null";
> 
> The documentation should be corrected.  Since TreeIter is a struct, null
> cannot be converted to TreeIter.  Use TreeIter.Zero instead.
> 

Yes... I did it but this is the result:

" Gtk-CRITICAL **: gtk_list_store_move_after: assertion `VALID_ITER
(position, store)' failed"

The source iter is valid...


Christopher David Howie wrote:
> 
>> 2. no problem on moving an item down the list with the "MoveAfter" and
>> assigning the "position" parameter to the iter calculated with the
>> "IterNext"; any suggestion to easily calculate the equivalence of
>> "IterBefore" (to moving an item up the list).
> 
> The most efficient way will probably be to get the path of the iter,
> subtract 1 from the last component, then turn that path back into an
> iter.  Not exactly clean, but I can't think of a better way to do it.
> 

I'll try and I'll let you know!

Bye!
Francesco
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