Re: clear() on TreeView causes select-events

[Reuben Rissler <silrep emypeople net>]

> > I have had very similar experiences with liststore.clear() in
> > Python3.5 and Mint 18. To work around this I do:
> >
> > store = treeview.get_model()  #may not be necessary in your code
> > treeview.set_model(None)
> > store.clear()
> > store.append('my string or etc')
> > treeview.set_model(store)
> This works. Disconnecting the "model" from the "view" before doing
> clear is the key. But very uncomfortable.
>
> What not worked was to unselect before doing clear. I don't understand
> why.
>
> This all sounds to me like a mystic behaviour what could be a bug. But
> I am not deep enough into Gtk so I won't open an official report about
> this. It is on the core devs and experts in that list to decide if this
> is an serious issue or not.
I agree with you. However, since I found this code on a Gtk website, 
specifically for common problems with using Gtk, I assume it is the 
recommended way. I don't remember where I found it or I would post a link.

And after you study the MVC pattern, you will see why the whole Treeview 
stack works the way it does. Google MVC and Gtk MVC. It is worthwhile 
reading if you plan on constructing treeviews. It may not make sense 
immediately, but eventually you may see the light like I did.

Reuben