def OnSortAscending(self, event):
        try:
            with undo.group(_("Sort ascending")):
                self.grid.actions.sort_ascending(self.grid.actions.cursor)
            statustext = _(u"Sorting complete.")
        except Exception, err:
            statustext = _(u"Sorting failed: {}").format(err)
        post_command_event(self.grid.main_window, self.grid.StatusBarMsg,
                           text=statustext)