AsyncEnumerable.OrderByDescending Method
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| 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
An IAsyncEnumerable<T> whose elements are sorted in descending order according to a key.
Exceptions
keySelector is null.
Applies to
.NET 10 és más verziók
| Termék | Verziók |
|---|---|
| .NET | 8 (package-provided), 9 (package-provided), 10 (package-provided), 10 |
| .NET Standard | 2.0 (package-provided) |
- 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
An IAsyncEnumerable<T> whose elements are sorted in descending order according to a key.
Exceptions
keySelector is null.
Applies to
.NET 10 és más verziók
| Termék | Verziók |
|---|---|
| .NET | 8 (package-provided), 9 (package-provided), 10 (package-provided), 10 |
| .NET Standard | 2.0 (package-provided) |
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