AsyncEnumerable.OrderByDescending Method

Definition

Namespace:

System.Linq

Assembly:

System.Linq.AsyncEnumerable.dll

Package:

System.Linq.AsyncEnumerable v10.0.0-preview.1.25080.5

Overloads

OrderByDescending<TSource,TKey>(IAsyncEnumerable<TSource>, Func<TSource,CancellationToken,ValueTask<TKey>>, IComparer<TKey>)	Sorts the elements of a sequence in descending order.
OrderByDescending<TSource,TKey>(IAsyncEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)	Sorts the elements of a sequence in descending order.

OrderByDescending<TSource,TKey>(IAsyncEnumerable<TSource>, Func<TSource,CancellationToken,ValueTask<TKey>>, IComparer<TKey>)

Source:

OrderBy.cs

Sorts the elements of a sequence in descending order.

public static System.Linq.IOrderedAsyncEnumerable<TSource> OrderByDescending<TSource,TKey>(this System.Collections.Generic.IAsyncEnumerable<TSource> source, Func<TSource,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask<TKey>> keySelector, System.Collections.Generic.IComparer<TKey>? comparer = default);

static member OrderByDescending : System.Collections.Generic.IAsyncEnumerable<'Source> * Func<'Source, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask<'Key>> * System.Collections.Generic.IComparer<'Key> -> System.Linq.IOrderedAsyncEnumerable<'Source>

<Extension()>
Public Function OrderByDescending(Of TSource, TKey) (source As IAsyncEnumerable(Of TSource), keySelector As Func(Of TSource, CancellationToken, ValueTask(Of TKey)), Optional comparer As IComparer(Of TKey) = Nothing) As IOrderedAsyncEnumerable(Of TSource)

Type Parameters

TSource

The type of the elements of source.

TKey

The type of the key returned by keySelector.

Parameters

source

IAsyncEnumerable<TSource>

A sequence of values to order.

keySelector

Func<TSource,CancellationToken,ValueTask<TKey>>

A function to extract a key from an element.

comparer

IComparer<TKey>

An IComparer<T> to compare keys.

Returns

IOrderedAsyncEnumerable<TSource>

An IAsyncEnumerable<T> whose elements are sorted in descending order according to a key.

Exceptions

ArgumentNullException

keySelector is null.

OrderByDescending<TSource,TKey>(IAsyncEnumerable<TSource>, Func<TSource,TKey>, IComparer<TKey>)

Source:

OrderBy.cs

Sorts the elements of a sequence in descending order.

public static System.Linq.IOrderedAsyncEnumerable<TSource> OrderByDescending<TSource,TKey>(this System.Collections.Generic.IAsyncEnumerable<TSource> source, Func<TSource,TKey> keySelector, System.Collections.Generic.IComparer<TKey>? comparer = default);

static member OrderByDescending : System.Collections.Generic.IAsyncEnumerable<'Source> * Func<'Source, 'Key> * System.Collections.Generic.IComparer<'Key> -> System.Linq.IOrderedAsyncEnumerable<'Source>

<Extension()>
Public Function OrderByDescending(Of TSource, TKey) (source As IAsyncEnumerable(Of TSource), keySelector As Func(Of TSource, TKey), Optional comparer As IComparer(Of TKey) = Nothing) As IOrderedAsyncEnumerable(Of TSource)

Type Parameters

TSource

The type of the elements of source.

TKey

The type of the key returned by keySelector.

Parameters

source

IAsyncEnumerable<TSource>

A sequence of values to order.

keySelector

Func<TSource,TKey>

A function to extract a key from an element.

comparer

IComparer<TKey>

An IComparer<T> to compare keys.

Returns

IOrderedAsyncEnumerable<TSource>

An IAsyncEnumerable<T> whose elements are sorted in descending order according to a key.

Exceptions

ArgumentNullException

keySelector is null.