[Gtk-sharp-list] treeview problems (gtk# bug?)

Erik Bågfors erik@bagfors.nu
06 Jul 2003 17:48:23 +0200


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Hello!

I have a small program which uses two treeviews.  The views are done in
very much the same way as ManagedTreeViewDemo.cs that comes with
gtk-sharp.

The problem is that at first the treeviews looks great but as I try to
use them by moving around in them and between them the cells in them
suddenly have the same text in them.

So I tried to add another treeview to the ManagedTreeViewDemo and get
the same problem there.  As you can see in treeviewok.png the rows under
"Two" are "foo", "bar", "baz", "quux".  If you look in treeviewwrong.png
you see that they are all "quux". All I did was move around in the
treeviews. You can see the same thing under "Three".

I attached a diff to ManagedTreeViewDemo.cs that shows this behavior.

I can't see how I would be doing anything wrong in this case so I
suspect a gtk# bug.

I'm running with the following rpms on a mandrake system.

mono-0.25-1.ximian.6.1
mono-devel-0.25-1.ximian.6.1
mono-debuginfo-0.24-1
gtk-sharp-0.10-1.ximian.6.1
gtk-sharp-gapi-0.10-1.ximian.6.1
monodoc-0.5-1.ximian.6.1

Keep up the good work! 

/Erik

-- 
erik@bagfors.nu
fingerprint: 6666 A85B 95D3 D26B 296B 6C60 4F32 2C0B 693D 6E32

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Index: ManagedTreeViewDemo.cs
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
RCS file: /mono/gtk-sharp/sample/ManagedTreeViewDemo.cs,v
retrieving revision 1.2
diff -u -r1.2 ManagedTreeViewDemo.cs
--- ManagedTreeViewDemo.cs	27 May 2003 06:58:41 -0000	1.2
+++ ManagedTreeViewDemo.cs	6 Jul 2003 15:44:38 -0000
@@ -14,6 +14,7 @@
=20
 	public class TreeViewDemo {
 		private static ListStore store =3D null;
+		private static ListStore store2 =3D null;
 	=09
 		private class Pair {
 			public string a, b;
@@ -28,9 +29,19 @@
 			store =3D new ListStore (typeof (Pair));
 			string[] combs =3D {"foo", "bar", "baz", "quux"};
 			foreach (string a in combs) {
-				foreach (string b in combs) {
-					store.AppendValues (new Pair (a, b));
-				}
+			    foreach (string b in combs) {
+				store.AppendValues (new Pair (a, b));
+			    }
+			}
+		}
+		private static void PopulateStore2 ()
+		{
+			store2 =3D new ListStore (typeof (Pair));
+			string[] combs =3D {"foo", "bar", "baz", "quux"};
+			foreach (string a in combs) {
+			    foreach (string b in combs) {
+				store2.AppendValues (new Pair (a, b));
+			    }
 			}
 		}
=20
@@ -45,27 +56,50 @@
 			Pair val =3D (Pair) store.GetValue (iter, 0);
 			((CellRendererText) cell).Text =3D val.b;
 		}
+		private static void CellDataA2 (Gtk.TreeViewColumn tree_column, Gtk.Cell=
Renderer cell, Gtk.TreeModel tree_model, Gtk.TreeIter iter)
+		{
+			Pair val =3D (Pair) store2.GetValue (iter, 0);
+			((CellRendererText) cell).Text =3D val.a;
+		}
+	=09
+		private static void CellDataB2 (Gtk.TreeViewColumn tree_column, Gtk.Cell=
Renderer cell, Gtk.TreeModel tree_model, Gtk.TreeIter iter)
+		{
+			Pair val =3D (Pair) store2.GetValue (iter, 0);
+			((CellRendererText) cell).Text =3D val.b;
+		}
 	=09
 		public static void Main (string[] args)
 		{
 			Application.Init ();
=20
 			PopulateStore ();
+			PopulateStore2 ();
=20
 			Window win =3D new Window ("TreeView demo");
 			win.DeleteEvent +=3D new DeleteEventHandler (DeleteCB);
 			win.DefaultSize =3D new Size (320,480);
=20
 			ScrolledWindow sw =3D new ScrolledWindow ();
-			win.Add (sw);
+			ScrolledWindow sw2 =3D new ScrolledWindow ();
+
+			VBox vb =3D new VBox(true, 0);
+			win.Add (vb);
=20
 			TreeView tv =3D new TreeView (store);
 			tv.HeadersVisible =3D true;
=20
 			tv.AppendColumn ("One", new CellRendererText (), new TreeCellDataFunc (=
CellDataA));
 			tv.AppendColumn ("Two", new CellRendererText (), new TreeCellDataFunc (=
CellDataB));
+			TreeView tv2 =3D new TreeView (store2);
+			tv2.HeadersVisible =3D true;
+
+			tv2.AppendColumn ("Three", new CellRendererText (), new TreeCellDataFun=
c (CellDataA2));
+			tv2.AppendColumn ("Four", new CellRendererText (), new TreeCellDataFunc=
 (CellDataB2));
=20
 			sw.Add (tv);
+			sw2.Add (tv2);
+			vb.PackStart(sw);
+			vb.PackStart(sw2);
 			win.ShowAll ();
=20
 			Application.Run ();

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