ParallelEnumerable.ThenBy Method

Definition

Performs in parallel a subsequent ordering of the elements in a sequence in ascending order.

Overloads

ThenBy<TSource,TKey>(OrderedParallelQuery<TSource>, Func<TSource,TKey>)

Performs in parallel a subsequent ordering of the elements in a sequence in ascending order according to a key.

ThenBy<TSource,TKey>(OrderedParallelQuery<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Performs in parallel a subsequent ordering of the elements in a sequence in ascending order by using a specified comparer.

ThenBy<TSource,TKey>(OrderedParallelQuery<TSource>, Func<TSource,TKey>)

Performs in parallel a subsequent ordering of the elements in a sequence in ascending order according to a key.

public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::OrderedParallelQuery<TSource> ^ ThenBy(System::Linq::OrderedParallelQuery<TSource> ^ source, Func<TSource, TKey> ^ keySelector);
public static System.Linq.OrderedParallelQuery<TSource> ThenBy<TSource,TKey> (this System.Linq.OrderedParallelQuery<TSource> source, Func<TSource,TKey> keySelector);
static member ThenBy : System.Linq.OrderedParallelQuery<'Source> * Func<'Source, 'Key> -> System.Linq.OrderedParallelQuery<'Source>
<Extension()>
Public Function ThenBy(Of TSource, TKey) (source As OrderedParallelQuery(Of TSource), keySelector As Func(Of TSource, TKey)) As OrderedParallelQuery(Of TSource)

Type Parameters

TSource

The type of elements of source.

TKey

The type of the key returned by keySelector.

Parameters

source
OrderedParallelQuery<TSource>

An OrderedParallelQuery{TSource} that contains elements to sort.

keySelector
Func<TSource,TKey>

A function to extract a key from an element.

Returns

An OrderedParallelQuery{TSource} whose elements are sorted according to a key.

Exceptions

source or keySelector is a null reference (Nothing in Visual Basic).

The query was canceled with the token passed in through WithCancellation.

One or more exceptions occurred during the evaluation of the query.

Remarks

In contrast to the sequential implementation, this is not a stable sort. See the remarks for OrderBy for an approach to implementing a stable sort.

See also

ThenBy<TSource,TKey>(OrderedParallelQuery<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Performs in parallel a subsequent ordering of the elements in a sequence in ascending order by using a specified comparer.

public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
 static System::Linq::OrderedParallelQuery<TSource> ^ ThenBy(System::Linq::OrderedParallelQuery<TSource> ^ source, Func<TSource, TKey> ^ keySelector, System::Collections::Generic::IComparer<TKey> ^ comparer);
public static System.Linq.OrderedParallelQuery<TSource> ThenBy<TSource,TKey> (this System.Linq.OrderedParallelQuery<TSource> source, Func<TSource,TKey> keySelector, System.Collections.Generic.IComparer<TKey> comparer);
static member ThenBy : System.Linq.OrderedParallelQuery<'Source> * Func<'Source, 'Key> * System.Collections.Generic.IComparer<'Key> -> System.Linq.OrderedParallelQuery<'Source>
<Extension()>
Public Function ThenBy(Of TSource, TKey) (source As OrderedParallelQuery(Of TSource), keySelector As Func(Of TSource, TKey), comparer As IComparer(Of TKey)) As OrderedParallelQuery(Of TSource)

Type Parameters

TSource

The type of elements of source.

TKey

The type of the key returned by keySelector.

Parameters

source
OrderedParallelQuery<TSource>

An OrderedParallelQuery{TSource} that contains elements to sort.

keySelector
Func<TSource,TKey>

A function to extract a key from an element.

comparer
IComparer<TKey>

An IComparer{TKey} to compare keys.

Returns

An OrderedParallelQuery{TSource} whose elements are sorted according to a key.

Exceptions

source or keySelector is a null reference (Nothing in Visual Basic).

The query was canceled with the token passed in through WithCancellation.

One or more exceptions occurred during the evaluation of the query.

Remarks

In contrast to the sequential implementation, this is not a stable sort. See the remarks for OrderBy for an approach to implementing a stable sort.

See also

Applies to