[Gtk-sharp-list] treeview toggled not changing

[George Farris]

On Sat, 2003-06-14 at 05:42, Rachel Hestilow wrote:
> On Sat, 2003-06-14 at 01:27, George Farris wrote:
> > public void enabled_toggled (object o, GtkSharp.ToggledArgs args)
> > {
> > 	Console.WriteLine("toggled {0}", args);
> > }
> > 
> > The enabled_toggled works when I click the little checkbox but the
> > actual gui state doesn't change when clicked, the check mark never
> > disappears.  Is it supposed to be changed manually with the signal?  I
> > would have thought it would just change when clicked.
> 
> Hi George,
>   The TreeView actually works differently here than you might expect.
> Since it is Model-View-Controller based, the view will never directly
> modify the model (in this case, toggling the actual boolean value).
> Instead you need to update the model value once you receive the toggled
> callback, like so:
> 
> public void enabled_toggled (object o, GtkSharp.ToggledArgs args)
> {
> 	Console.WriteLine("toggled {0}", args);
> 
> 	Gtk.TreeIter iter;
> 	if (store.GetIterFromString(out iter, args.Path))
> 	{
> 		bool val = (bool) store.GetValue(iter, 0);
> 		store.SetValue(iter, 0, !val);
> 	}
> }
> 
>   The view will receive a notification of the changed value and update
> the check mark accordingly.

Just for the record my function ended up looking like this:


public void enabled_toggled (object o, GtkSharp.ToggledArgs args)
{
	Value val = new Value();
	
	if (store.GetIterFromString(out iter, args.Path)) {
		store.GetValue(iter, 0, out val);
		Value valnot = new Value(!(bool)val); 
		store.SetValue(iter, 0, valnot);
       	}
}


-- 
George Farris <george@gmsys.com>