public IOrderedEnumerable <T> CreateOrderedEnumerable <TKey>(Func <T, TKey> keySelector, IComparer <TKey> keyComparer, bool descending)
{
var secondComparer = new MyComparer <T, TKey>(keySelector, keyComparer);
Comparers.Add(secondComparer);
return(new MyOrderedEnumerable <T>(this, Comparers));
}
public static IOrderedEnumerable <TSource> OrderBy <TSource, TKey>(
this IEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> keyComparer)
{
EnsureArgumentIsNotNull(source, nameof(source));
EnsureArgumentIsNotNull(keySelector, nameof(keySelector));
var myComparer = new MyComparer <TSource, TKey>(keySelector, keyComparer);
var comparersList = new List <IComparer <TSource> >();
comparersList.Add(myComparer);
return(new MyOrderedEnumerable <TSource>(source, comparersList));
}