/// <summary>
/// Called by multi level grand_parent/root_node for first level ordering
/// </summary>
/// <param name="NodeTree"></param>
/// <param name="sf"></param>
/// <returns></returns>
public IOrderedEnumerable <XElement> Process(IEnumerable <XElement> NodeTree, SortingField sf)
{
IOrderedEnumerable <XElement> orderNodeTree;
string elementName = sf.GetLeafName();
if (sf.SortingType == SortingType.Ascending)
{
orderNodeTree = NodeTree.OrderBy(m => m.Element(elementName).Value, sf.GetComparer());
}
else
{
orderNodeTree = NodeTree.OrderByDescending(m => m.Element(elementName).Value, sf.GetComparer());
}
return(orderNodeTree);
}
