| ThenByT, TKey(IOrderedEnumerableT, FuncT, TKey, OrderByDirection) | Performs a subsequent ordering of elements in a sequence in a particular direction (ascending, descending) according to a key |
| ThenByT, TKey(IOrderedEnumerableT, FuncT, TKey, IComparerTKey, OrderByDirection) | Performs a subsequent ordering of elements in a sequence in a particular direction (ascending, descending) according to a key |