AsyncEnumerable.ExceptBy 方法

定義

命名空間:: System.Linq

組件:: System.Linq.AsyncEnumerable.dll

套件:: System.Linq.AsyncEnumerable v11.0.0-rc.1.26425.128

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

多載

名稱	Description
ExceptBy<TSource,TKey>(IAsyncEnumerable<TSource>, IAsyncEnumerable<TKey>, Func<TSource,TKey>, IEqualityComparer<TKey>)	根據指定的索引鍵選取器函式，產生兩個序列的集合差異。
ExceptBy<TSource,TKey>(IAsyncEnumerable<TSource>, IAsyncEnumerable<TKey>, Func<TSource,CancellationToken,ValueTask<TKey>>, IEqualityComparer<TKey>)	根據指定的索引鍵選取器函式，產生兩個序列的集合差異。

ExceptBy<TSource,TKey>(IAsyncEnumerable<TSource>, IAsyncEnumerable<TKey>, Func<TSource,TKey>, IEqualityComparer<TKey>)

來源:: ExceptBy.cs

來源:: ExceptBy.cs

來源:: ExceptBy.cs

來源:: ExceptBy.cs

根據指定的索引鍵選取器函式，產生兩個序列的集合差異。

public static System.Collections.Generic.IAsyncEnumerable<TSource> ExceptBy<TSource,TKey>(this System.Collections.Generic.IAsyncEnumerable<TSource> first, System.Collections.Generic.IAsyncEnumerable<TKey> second, Func<TSource,TKey> keySelector, System.Collections.Generic.IEqualityComparer<TKey>? comparer = default);

static member ExceptBy : System.Collections.Generic.IAsyncEnumerable<'Source> * System.Collections.Generic.IAsyncEnumerable<'Key> * Func<'Source, 'Key> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Collections.Generic.IAsyncEnumerable<'Source>

<Extension()>
Public Function ExceptBy(Of TSource, TKey) (first As IAsyncEnumerable(Of TSource), second As IAsyncEnumerable(Of TKey), keySelector As Func(Of TSource, TKey), Optional comparer As IEqualityComparer(Of TKey) = Nothing) As IAsyncEnumerable(Of TSource)

類型參數

TSource

輸入序列元素的類型。

TKey

識別元素的鍵型。

參數

first: IAsyncEnumerable<TSource>

IAsyncEnumerable<T>一個不second在其中的鑰匙會被歸還。

second: IAsyncEnumerable<TKey>

如果 IAsyncEnumerable<T> 鍵同時出現在第一個序列中，會使這些元素從回傳序列中移除。

keySelector: Func<TSource,TKey>

一個用來提取每個元素鍵值的函式。

comparer: IEqualityComparer<TKey>

比較 IEqualityComparer<T> 價值。

傳回

IAsyncEnumerable<TSource>

包含兩個序列元素集合差的序列。

例外狀況

ArgumentNullException

keySelector 是 null。

適用於

ExceptBy<TSource,TKey>(IAsyncEnumerable<TSource>, IAsyncEnumerable<TKey>, Func<TSource,CancellationToken,ValueTask<TKey>>, IEqualityComparer<TKey>)

來源:: ExceptBy.cs

來源:: ExceptBy.cs

來源:: ExceptBy.cs

來源:: ExceptBy.cs

根據指定的索引鍵選取器函式，產生兩個序列的集合差異。

public static System.Collections.Generic.IAsyncEnumerable<TSource> ExceptBy<TSource,TKey>(this System.Collections.Generic.IAsyncEnumerable<TSource> first, System.Collections.Generic.IAsyncEnumerable<TKey> second, Func<TSource,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask<TKey>> keySelector, System.Collections.Generic.IEqualityComparer<TKey>? comparer = default);

static member ExceptBy : System.Collections.Generic.IAsyncEnumerable<'Source> * System.Collections.Generic.IAsyncEnumerable<'Key> * Func<'Source, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask<'Key>> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Collections.Generic.IAsyncEnumerable<'Source>

<Extension()>
Public Function ExceptBy(Of TSource, TKey) (first As IAsyncEnumerable(Of TSource), second As IAsyncEnumerable(Of TKey), keySelector As Func(Of TSource, CancellationToken, ValueTask(Of TKey)), Optional comparer As IEqualityComparer(Of TKey) = Nothing) As IAsyncEnumerable(Of TSource)