Re: doubt on assertion

[francex tiscali it]

Hi Nils,

> I have a doubt on this situation:
>
> gboolean visible[19]= {TRUE,....};
> extern GtkWidget *view;
>
> .....
>
> for (i = 0; i < 19; i++)
>   {
>           column = gtk_tr
>e_view_get_column (GTK_TREE_VIEW(view),i);
>           gtk_tree_view_column_set_visible (GTK_TREE_VIEW_COLUMN(column),
> visible[i]);
>   }
>
> Program works correctly but I got on shell:
>
> (app1:2816): Gtk-CRITICAL **: file gtktreeviewcolum
>.c: line 1558 (gtk_tree_view_column_set_visible):
> assertion `GTK_IS_TREE_VIEW_COLUMN (tree_column)' failed

> Why???
> Exactly what it says.
> Your line:
>column = gtk_tree_view_get_column (GTK_TREE_VIEW(vi
>w),i); Does NOT return a column.
> Why that is I cannot tell, perhaps you havn't added any columns at this
point ??

It's strange cos I have added columns!
partial code:

.....
for (i = 0; i < 19; i++)                                               
          {
                cell = gtk_cell_renderer_text_new ();
                column = gtk_tree_view_column_new_with_attributes(name_fields[i],
cell, "text", i, NULL);
                gtk_tree_view_column_set_resizable(GTK_TREE_VIEW_COLUMN(column),
TRUE);
                gtk_tree_view_append_column(GTK_TREE_VIEW(view), column);
              }

  gtk_widget_show (view);
......

Thanks,
France

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