private void PopulateNavigation()
{
IQueryable <PageNode> topLevelPages = PagesUtilities.GetTopLevelPages(true);
if (topLevelPages != null)
{
this.menuItemsList.ItemDataBound += MenuItemsList_ItemDataBound;
this.menuItemsList.DataSource = topLevelPages;
this.menuItemsList.DataBind();
}
}