[wxPython-users] Bug in wx.TreeListCtrl.DeleteChildren?

[Frank Niessink]

Hi Robin,

2007/12/10, Robin Dunn <robin at alldunn.com>:
> Frank Niessink wrote:
>
> > But m_curItem may point to a deleted item with a crash as result.
> >
> > Correct analysis?
>
> Yes, it looks correct to me.  So do  you think that m_curItem should
> also be set to NULL in wxTreeListItem::DeleteChildren if there is a
> matching child being deleted, or does it always need to point to a valid
> item?

I'm not sure. I'm not even sure I understand why TreeListCtrl needs
both the concept of a current item and a selected item. I don't think
the TreeCtrl makes that distinction. In my code I worked around this
bug by setting the current item to the (hidden) root item of the tree
before each update. That seems to work.

I guess the best solution is to deal with the current item in a
similar vein as the selected item is dealt with, i.e. when the current
item is about to be deleted make its parent item the new current item.

Cheers, Frank