public IEnumerator <TSource> CreateOrderedEnumerable(IEnumerableSorted <TSource> next)
{
if (parent == null)
{
throw new InvalidOperationException("");
}
this.SetNext(next);
return(parent.CreateOrderedEnumerable(this));
}
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector, IComparer <TKey>?comparer)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (keySelector == null)
{
throw new ArgumentNullException(nameof(keySelector));
}
if (comparer == null)
{
return(source.CreateOrderedEnumerable(keySelector, Comparer <TKey> .Default, true));
}
return(source.CreateOrderedEnumerable(keySelector, comparer, true));
}
IOrderedEnumerable <T> IOrderedEnumerable <T> .CreateOrderedEnumerable <TKey1>(
Func <T, TKey1> keySelector,
IComparer <TKey1> comparer,
bool descending)
{
return(_orderedEnumerable.CreateOrderedEnumerable(keySelector, comparer, descending));
}
static void Example2()
{
// <Snippet2>
// Create an array of strings to sort.
string[] fruits = { "apricot", "orange", "banana", "mango", "apple", "grape", "strawberry" };
// First sort the strings by their length.
IOrderedEnumerable <string> sortedFruits2 =
fruits.OrderBy(fruit => fruit.Length);
// Secondarily sort the strings alphabetically, using the default comparer.
IOrderedEnumerable <string> sortedFruits3 =
sortedFruits2.CreateOrderedEnumerable <string>(
fruit => fruit,
Comparer <string> .Default, false);
// Output the resulting sequence of strings.
foreach (string fruit in sortedFruits3)
{
Console.WriteLine(fruit);
}
// This code produces the following output:
//
// apple
// grape
// mango
// banana
// orange
// apricot
// strawberry
// </Snippet2>
}
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey> (
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer)
{
return(source.CreateOrderedEnumerable <TKey> (keySelector, comparer, true));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector)
{
if (source == null)
{
throw Error.ArgumentNull("source");
}
return(source.CreateOrderedEnumerable(keySelector, null, false));
}
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector, IComparer <TKey> comparer)
{
if (source == null)
{
throw Error.ArgumentNull("source");
}
return(source.CreateOrderedEnumerable(keySelector, comparer, true));
}
public static IOrderedEnumerable <TElement> ThenByDescending <TElement, TKey>
(
this IOrderedEnumerable <TElement> source,
Func <TElement, TKey> keySelector
)
{
return(source.CreateOrderedEnumerable(keySelector, Comparer <TKey> .Default, true));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer)
{
ThrowNullException(source);
ThrowNullException(keySelector);
return(source.CreateOrderedEnumerable(keySelector, comparer, false));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector)
{
if (source == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.source);
}
return(source.CreateOrderedEnumerable(keySelector, null, false));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector, IComparer <TKey> comparer)
{
if (source == null)
{
throw Error.ArgumentNull(nameof(source));
}
return(source.CreateOrderedEnumerable(keySelector, comparer, false));
}
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector, IComparer <TKey>?comparer)
{
if (source == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.source);
}
return(source.CreateOrderedEnumerable(keySelector, comparer, true));
}
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector)
{
if (source == null)
{
throw Error.ArgumentNull(nameof(source));
}
return(source.CreateOrderedEnumerable(keySelector, null, true));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer)
{
EnsureArgumentIsNotNull(source, nameof(source));
EnsureArgumentIsNotNull(keySelector, nameof(keySelector));
return(source.CreateOrderedEnumerable(keySelector, comparer, false));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer)
{
ThrowIfNullSource(source);
ThrowIfNullSelector(keySelector);
return(source.CreateOrderedEnumerable(keySelector, comparer, true));
}
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector, IComparer <TKey> comparer)
{
LinqCheck.SourceAndKeySelector(source, keySelector);
var oe = source as OrderedEnumerable <TSource>;
if (oe != null)
{
return(oe.CreateOrderedEnumerable(keySelector, comparer, true));
}
return(source.CreateOrderedEnumerable(keySelector, comparer, true));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(this IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector, IComparer <TKey> comparer)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (keySelector == null)
{
throw new ArgumentNullException("keySelector");
}
return(source.CreateOrderedEnumerable(keySelector, comparer, false));
}
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer)
{
CheckNullElement(source);
CheckNullElement(keySelector);
comparer ??= Comparer <TKey> .Default;
return(source.CreateOrderedEnumerable(keySelector, comparer, false));
}
public IOrderedEnumerable <T> CreateOrderedEnumerable <TKey>(Func <T, TKey> keySelector, IComparer <TKey> comparer, bool descending)
{
return(query.CreateOrderedEnumerable <TKey>(keySelector, comparer, descending));
}
public static IOrderedEnumerable <Employee> JoeyThenBy <TKey>(this IOrderedEnumerable <Employee> sources, Func <Employee, TKey> keySelector, IComparer <TKey> comparer)
{
return(sources.CreateOrderedEnumerable(keySelector, comparer, false));
}
public static IOrderedEnumerable ThenBy <TKey>(this IOrderedEnumerable source, Func <object, TKey> keySelector)
{
Error.ThrowIfNull(source, nameof(source));
return(source.CreateOrderedEnumerable <TKey>(keySelector, null, false));
}
public IOrderedEnumerable <T> CreateOrderedEnumerable <TKey>(Func <T, TKey> keySelector, IComparer <TKey> comparer, bool descending) => new WhereOrderedEnumerable <T>(source.CreateOrderedEnumerable(keySelector, comparer, descending), predicate);
public static IOrderedEnumerable <TSource> ThenBy <TSource, TKey>(
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer = null) =>
source.CreateOrderedEnumerable(keySelector, comparer, descending: false);
public IOrderedEnumerable <TSource> ThenBySample <TSource>(IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector)
{
return(source.CreateOrderedEnumerable(item => this.GetOrderKey(keySelector(item)), Comparer <int> .Default, false));
}
internal static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(
this IOrderedEnumerable <TSource> source,
Func <TSource, TKey> keySelector,
IComparer <TKey> comparer = null) => source.CreateOrderedEnumerable(keySelector, comparer, true);
public static IOrderedEnumerable <TSource> ThenByDescending <TSource, TKey>(IOrderedEnumerable <TSource> source, Func <TSource, TKey> keySelector) where TKey : IComparable <TKey>
{
return(source.CreateOrderedEnumerable((x, y) => keySelector(y).CompareTo(keySelector(x))));
}
public static IOrderedEnumerable ThenByDescending <TKey>(this IOrderedEnumerable source, Func <object, TKey> keySelector, IComparer comparer)
{
Error.ThrowIfNull(source, nameof(source));
return(source.CreateOrderedEnumerable <TKey>(keySelector, comparer, true));
}
