<?php
$treeView = $glade->get_widget('treeviewname');// returns GtkTreeView object
$liststore = new GtkListStore(Gtk::TYPE_STRING/* column type */, Gtk::TYPE_STRING /* column type */); // creates a liststore for your data
$treeView->set_model($liststore); // sets the store to the treeview
$cellrenderer = new GtkCellRendererText(); // create a text cell
$column1 = new GtkTreeViewColumn('Field name 1', $cellrenderer, 'text', 0); // creates a column
$column2 = new GtkTreeViewColumn('Field name 2', $cellrenderer, 'text', 1); // creates a column
$treeView->append_column($column1); // adds the cloumn to the treeview
$treeView->append_column($column2); // adds the cloumn to the treeview
$liststore->append(array('string1', 'string2')); // places data in the liststore
?>