[Gtk-sharp-list] a treeview sorting question
Sun, 21 Sep 2003 20:31:58 -0500
On Sat, 2003-09-20 at 13:49, Davy Brion wrote:
> I have a treeview, and when the user clicks one of the headers, i want the
> treeview to sort all the rows based on the columnheader that was clicked
> (this was easy to get working), but after it finishes sorting i would like it
> to return to a state where it doesn't automatically put the newly added rows
> in a sorted order, but rather at the end of the treeview.
My knee jerk reaction is that you probably don't really want to do
When a column header shows a sorted indicator, users are going to expect
all rows to be sorted by that indicator. What you are proposing is a
behavior that is inconsistent with the standard visual feedback of the
interface, and will likely confuse your users.
> Basically, i want
> the treeview to sort all the rows when one of the headers is clicked, but i
> want to just sort all those rows once. If rows are added after that
> operation, they are added in an unsorted order until the user once again
> presses on one of the columnheaders. Could anyone tell me how i can do this
> with gtk#?
If you really want to do this, you would have to implement your own
custom model, which means implementing GtkTreeModel on a GObject
subclass, and also implementing the GtkTreeSortable interface.
Unfortunately, there is no mechanism currently in Gtk# to register
GObject interface implementations at type registration time, so the
above approach isn't possible yet with the binding.
Mike Kestner <email@example.com>