AsyncEnumerable.GroupJoin Method (System.Linq) (original) (raw)
Definition
Overloads
| GroupJoin<TOuter,TInner,TKey,TResult>(IAsyncEnumerable, IAsyncEnumerable, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable,TResult>, IEqualityComparer) | Correlates the elements of two sequences based on key equality and groups the results. |
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| GroupJoin<TOuter,TInner,TKey,TResult>(IAsyncEnumerable, IAsyncEnumerable, Func<TOuter,CancellationToken,ValueTask>, Func<TInner,CancellationToken,ValueTask>, Func<TOuter, IEnumerable,CancellationToken,ValueTask>, IEqualityComparer) | Correlates the elements of two sequences based on key equality and groups the results. |
GroupJoin<TOuter,TInner,TKey,TResult>(IAsyncEnumerable, IAsyncEnumerable, Func<TOuter,TKey>, Func<TInner,TKey>, Func<TOuter,IEnumerable,TResult>, IEqualityComparer)
Source:
Source:
Correlates the elements of two sequences based on key equality and groups the results.
public static System.Collections.Generic.IAsyncEnumerable<TResult> GroupJoin<TOuter,TInner,TKey,TResult>(this System.Collections.Generic.IAsyncEnumerable<TOuter> outer, System.Collections.Generic.IAsyncEnumerable<TInner> inner, Func<TOuter,TKey> outerKeySelector, Func<TInner,TKey> innerKeySelector, Func<TOuter,System.Collections.Generic.IEnumerable<TInner>,TResult> resultSelector, System.Collections.Generic.IEqualityComparer<TKey>? comparer = default);static member GroupJoin : System.Collections.Generic.IAsyncEnumerable<'Outer> * System.Collections.Generic.IAsyncEnumerable<'Inner> * Func<'Outer, 'Key> * Func<'Inner, 'Key> * Func<'Outer, seq<'Inner>, 'Result> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Collections.Generic.IAsyncEnumerable<'Result><Extension()>
Public Function GroupJoin(Of TOuter, TInner, TKey, TResult) (outer As IAsyncEnumerable(Of TOuter), inner As IAsyncEnumerable(Of TInner), outerKeySelector As Func(Of TOuter, TKey), innerKeySelector As Func(Of TInner, TKey), resultSelector As Func(Of TOuter, IEnumerable(Of TInner), TResult), Optional comparer As IEqualityComparer(Of TKey) = Nothing) As IAsyncEnumerable(Of TResult)Type Parameters
Parameters
outerKeySelector
Func<TOuter,TKey>
A function to extract the join key from each element of the first sequence.
innerKeySelector
Func<TInner,TKey>
A function to extract the join key from each element of the second sequence.
resultSelector
Func<TOuter,IEnumerable,TResult>
A function to create a result element from an element from the first sequence and a collection of matching elements from the second sequence.
Returns
An IAsyncEnumerable that contains elements of type TResultthat are obtained by performing a grouped join on two sequences.
Exceptions
Applies to
GroupJoin<TOuter,TInner,TKey,TResult>(IAsyncEnumerable, IAsyncEnumerable, Func<TOuter,CancellationToken,ValueTask>, Func<TInner,CancellationToken,ValueTask>, Func<TOuter, IEnumerable,CancellationToken,ValueTask>, IEqualityComparer)
Source:
Source:
Correlates the elements of two sequences based on key equality and groups the results.
public static System.Collections.Generic.IAsyncEnumerable<TResult> GroupJoin<TOuter,TInner,TKey,TResult>(this System.Collections.Generic.IAsyncEnumerable<TOuter> outer, System.Collections.Generic.IAsyncEnumerable<TInner> inner, Func<TOuter,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask<TKey>> outerKeySelector, Func<TInner,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask<TKey>> innerKeySelector, Func<TOuter,System.Collections.Generic.IEnumerable<TInner>,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask<TResult>> resultSelector, System.Collections.Generic.IEqualityComparer<TKey>? comparer = default);static member GroupJoin : System.Collections.Generic.IAsyncEnumerable<'Outer> * System.Collections.Generic.IAsyncEnumerable<'Inner> * Func<'Outer, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask<'Key>> * Func<'Inner, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask<'Key>> * Func<'Outer, seq<'Inner>, System.Threading.CancellationToken, System.Threading.Tasks.ValueTask<'Result>> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Collections.Generic.IAsyncEnumerable<'Result><Extension()>
Public Function GroupJoin(Of TOuter, TInner, TKey, TResult) (outer As IAsyncEnumerable(Of TOuter), inner As IAsyncEnumerable(Of TInner), outerKeySelector As Func(Of TOuter, CancellationToken, ValueTask(Of TKey)), innerKeySelector As Func(Of TInner, CancellationToken, ValueTask(Of TKey)), resultSelector As Func(Of TOuter, IEnumerable(Of TInner), CancellationToken, ValueTask(Of TResult)), Optional comparer As IEqualityComparer(Of TKey) = Nothing) As IAsyncEnumerable(Of TResult)Type Parameters
Parameters
resultSelector
Func<TOuter,IEnumerable,CancellationToken,ValueTask>
A function to create a result element from an element from the first sequence and a collection of matching elements from the second sequence.
Returns
An IAsyncEnumerable that contains elements of type TResultthat are obtained by performing a grouped join on two sequences.