[gtkada] [gtkaa] more on row_activate for tree views

[Juan L. Freniche]

Hello,
I have the following program (only the relevant parts are included):

...
package Treeview_Callback is new Gtk.Handlers.Callback 
(Gtk_Tree_View_Record);
...
Treeview_Callback.Connect (My_Treeview, "row_activated", 
On_Row_Activated'Access);
...
  procedure On_Row_Activated (Treeview : access Gtk_Tree_View_Record'Class;
                                                        Params : 
Glib.Values.GValues)
    is
       Path_String : constant String := Get_String (Nth (Params, 1));
       Model : Gtk_Tree_Store;
       Iter  : Gtk_Tree_Iter;
       ...
    begin
       Model := Gtk_Tree_Store (Get_Model (Treeview));
       Iter  := Get_Iter_From_String (Model, Path_String);
       ...
    end On_Row_Activated;

When I double-click on a row, the Path_String is
(gdb) print path_string
$11 = "["04"]"

Same for any row I double-click.

Obviously such path_string is not a path and an error is raised at the 
obtention of Iter.

Any help? Thanks in advance,
JLF