// remove the model from the GtkTreeView before it gets destroyed by the
// wxDataViewCtrlBase's dtor
gtk_tree_view_set_model( GTK_TREE_VIEW(m_treeview), NULL );
// remove the model from the GtkTreeView before it gets destroyed by the
// wxDataViewCtrlBase's dtor
gtk_tree_view_set_model( GTK_TREE_VIEW(m_treeview), NULL );