/// <summary>
/// Gets a reference to the main navigation. The property uses lazy loading, meaning that it's value isn't
/// populated by the constructor, buit instead the first time the property is requested.
/// </summary>
/// <returns>An instance of <see cref="IEnumerable{NavItem}"/>.</returns>
protected virtual IEnumerable <NavItem> GetMainNavigation()
{
// Just return the value if already loaded
if (_mainNavigation != null)
{
return(_mainNavigation);
}
// Get the main nav items from the "culture" node
IEnumerable <IPublishedContent> items = Culture.GetPropertyValue <IEnumerable <IPublishedContent> >(SkyConstants.Properties.MainNavigation);
// Map the nav items and set the private field
_mainNavigation = _mainNavigation = NavItem.GetItems(items);
// Return the value
return(_mainNavigation);
}