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Queryable.AggregateBy Yöntem

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Tanım

Ad Alanı:
System.Linq
Bütünleştirilmiş Kod:
System.Linq.Queryable.dll

Aşırı Yüklemeler

AggregateBy<TSource,TKey,TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey,TAccumulate>>, Expression<Func<TAccumulate, TSource,TAccumulate>>, IEqualityComparer<TKey>)
AggregateBy<TSource,TKey,TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>, IEqualityComparer<TKey>)

AggregateBy<TSource,TKey,TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey,TAccumulate>>, Expression<Func<TAccumulate, TSource,TAccumulate>>, IEqualityComparer<TKey>)

Kaynak:
Queryable.cs
public static System.Linq.IQueryable<System.Collections.Generic.KeyValuePair<TKey,TAccumulate>> AggregateBy<TSource,TKey,TAccumulate> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector, System.Linq.Expressions.Expression<Func<TKey,TAccumulate>> seedSelector, System.Linq.Expressions.Expression<Func<TAccumulate,TSource,TAccumulate>> func, System.Collections.Generic.IEqualityComparer<TKey>? keyComparer = default);
static member AggregateBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> * System.Linq.Expressions.Expression<Func<'Key, 'Accumulate>> * System.Linq.Expressions.Expression<Func<'Accumulate, 'Source, 'Accumulate>> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Linq.IQueryable<System.Collections.Generic.KeyValuePair<'Key, 'Accumulate>>
<Extension()>
Public Function AggregateBy(Of TSource, TKey, TAccumulate) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey)), seedSelector As Expression(Of Func(Of TKey, TAccumulate)), func As Expression(Of Func(Of TAccumulate, TSource, TAccumulate)), Optional keyComparer As IEqualityComparer(Of TKey) = Nothing) As IQueryable(Of KeyValuePair(Of TKey, TAccumulate))

Tür Parametreleri

TSource
TKey
TAccumulate

Parametreler

source
IQueryable<TSource>
keySelector
Expression<Func<TSource,TKey>>
seedSelector
Expression<Func<TKey,TAccumulate>>
func
Expression<Func<TAccumulate,TSource,TAccumulate>>
keyComparer
IEqualityComparer<TKey>

Döndürülenler

IQueryable<KeyValuePair<TKey,TAccumulate>>

Şunlara uygulanır

AggregateBy<TSource,TKey,TAccumulate>(IQueryable<TSource>, Expression<Func<TSource, TKey>>, TAccumulate, Expression<Func<TAccumulate,TSource,TAccumulate>>, IEqualityComparer<TKey>)

Kaynak:
Queryable.cs
public static System.Linq.IQueryable<System.Collections.Generic.KeyValuePair<TKey,TAccumulate>> AggregateBy<TSource,TKey,TAccumulate> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector, TAccumulate seed, System.Linq.Expressions.Expression<Func<TAccumulate,TSource,TAccumulate>> func, System.Collections.Generic.IEqualityComparer<TKey>? keyComparer = default);
static member AggregateBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> * 'Accumulate * System.Linq.Expressions.Expression<Func<'Accumulate, 'Source, 'Accumulate>> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Linq.IQueryable<System.Collections.Generic.KeyValuePair<'Key, 'Accumulate>>
<Extension()>
Public Function AggregateBy(Of TSource, TKey, TAccumulate) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey)), seed As TAccumulate, func As Expression(Of Func(Of TAccumulate, TSource, TAccumulate)), Optional keyComparer As IEqualityComparer(Of TKey) = Nothing) As IQueryable(Of KeyValuePair(Of TKey, TAccumulate))

Tür Parametreleri

TSource
TKey
TAccumulate

Parametreler

source
IQueryable<TSource>
keySelector
Expression<Func<TSource,TKey>>
seed
TAccumulate
func
Expression<Func<TAccumulate,TSource,TAccumulate>>
keyComparer
IEqualityComparer<TKey>

Döndürülenler

IQueryable<KeyValuePair<TKey,TAccumulate>>

Şunlara uygulanır