Re: real gtk question: treeview

[Jonathan Blandford <jrb redhat com>]

Jacob Perkins <jap1 users sourceforge net> writes:

> I'm trying to use gtktreeview with gtkliststore as the model, but I keep
> running into problems.  Here's some relevant code:
>
> GtkTreeView *key_list = GTK_TREE_VIEW (lookup_widget (key_manager,
> "key_list"));
>       
>       GtkTreeViewColumn *keyid = gtk_tree_view_column_new ();
>       gtk_tree_view_column_set_title (keyid, "Key ID");
>       gtk_tree_view_append_column (key_list, keyid);
> ...
> GtkListStore *list = gtk_list_store_new (5, G_TYPE_STRING, G_TYPE_INT,
>               G_TYPE_INT, G_TYPE_STRING, G_TYPE_STRING);
>       
>       gtk_tree_view_set_model (key_list, GTK_TREE_MODEL (list));
>       
>       GtkTreeIter iter;
>       
>       gtk_list_store_append (list, &iter);
>       gtk_list_store_set (list, &iter, 0, "hi", 1, 0, 2, 0, 3, "hi", 4, "hi",
> -1);
>
> When I run this, I get the following output many, many times:
>
> (seahorse2:6795): Gtk-CRITICAL **: file gtktreeviewcolumn.c: line 2246
> (gtk_tree_view_column_cell_set_cell_data): assertion
> `tree_column->cell_list != NULL' failed
>
> I get all the named columns just fine, and when I have the
> list_store_append line, I can select the top row, but there is no data
> in it.

You need to add a cell renderer to the column.  Look at
http://developer.gnome.org/doc/API/2.0/gtk/treewidget.html
for an example.

-Jonathan