[Mono-list] Liststore not appending correctly

Wed Mar 21 17:51:11 EDT 2007

I see, thank you I'll try to ask on gtk-sharp list.

But can you give me more details on how you fixed this issue by using
Lock ?
What is that and how should I use it.

Thanks

Nil Gradisnik

On Wed, 2007-03-21 at 21:36 +0000, Luciano _ wrote:
> maybe Gtk-sharp list is better place to ask this, but, (i'm not really sure 
> about this)
> the problem i guess is that Gtk.Application.Invokes, execute in main thread, 
> when it can be executed, but not sequentially. Maybe, the Gtk Thread is 
> making some Re-paint or something else, and does not work like you want. I'm 
> not really sure, i was having this problem (that i descript) and i fix it by 
> using Lock (threads).
> 
> Bye
> Luciano
> 
> 
> >From: Nil Gradisnik <ghaefbgtk at gmail.com>
> >To: mono-list at lists.ximian.com
> >Subject: [Mono-list] Liststore not appending correctly
> >Date: Wed, 21 Mar 2007 19:25:31 +0100
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> >
> >I need your opinion on this one. I'm running a Thread which starts this
> >function named PopulateTreevew() and in there this is what happens:
> >
> >//populate treeview
> >public void PopulateTreeviewThreadRoutine()
> >{
> >	Gtk.Application.Invoke (delegate {
> >		liststore.Clear();
> >	});
> >
> >	for (int i = 0; i < 10; i++) {
> >
> >		Console.WriteLine (i); //THIS one works
> >		Gtk.Application.Invoke (delegate {
> >			Console.WriteLine (i); //THIS one sometimes works
> >			liststore.AppendValues (i);
> >		});
> >	}
> >
> >	Gtk.Application.Invoke (delegate {
> >		Treeview1.Model = liststore;
> >	});
> >}
> >
> >My main problem is that I sometimes get all the same(the last) contents
> >of my variable array to my Treeview, using liststore.AppendValues... I
> >tested this values with Console.WriteLine.
> >As you can see I'm using Gtk.Application.Invoke, because I'm running a
> >Thread outside the main GTK thread.
> >
> >So basically I narrowed it down to this, that if I print out those
> >variables(arrays) before the Gtk.Application.Invoke, it always prints
> >out OK, the numbers(i) are 0,1,2,3,4,5,6...9. But If I print them out
> >inside Gtk.Application.Invoke I sometimes(randomly) get just all 9s !
> >That is 9,9,9,9,9.......9.
> >
> >Why is that ? What could cause this problem, I don't understand.
> >It looks like a bug in Gtk.Application.Invoke or something.
> >
> >Can I use something else than Gtk.Application.Invoke, so that I get out
> >the correct array?
> >Because it looks like the Gtk.Application.Invoke messes up things
> >randomly.
> >
> >
> >Please advise
> >
> >Thanks
> >
> >
> >Nil Gradisnik
> >
> >_______________________________________________
> >Mono-list maillist  -  Mono-list at lists.ximian.com
> >http://lists.ximian.com/mailman/listinfo/mono-list
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