Queryable.DistinctBy 메서드
정의
중요
일부 정보는 릴리스되기 전에 상당 부분 수정될 수 있는 시험판 제품과 관련이 있습니다. Microsoft는 여기에 제공된 정보에 대해 어떠한 명시적이거나 묵시적인 보증도 하지 않습니다.
오버로드
| Name | Description |
|---|---|
| DistinctBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>) |
지정된 키 선택기 함수에 따라 시퀀스에서 고유 요소를 반환합니다. |
| DistinctBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>) |
지정된 키 선택기 함수에 따라 시퀀스에서 고유 요소를 반환합니다. |
DistinctBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>)
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
지정된 키 선택기 함수에 따라 시퀀스에서 고유 요소를 반환합니다.
public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
static System::Linq::IQueryable<TSource> ^ DistinctBy(System::Linq::IQueryable<TSource> ^ source, System::Linq::Expressions::Expression<Func<TSource, TKey> ^> ^ keySelector);public static System.Linq.IQueryable<TSource> DistinctBy<TSource,TKey>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector);[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Enumerating collections as IQueryable can require creating new generic types or methods, which requires creating code at runtime. This may not work when AOT compiling.")]
public static System.Linq.IQueryable<TSource> DistinctBy<TSource,TKey>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector);static member DistinctBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> -> System.Linq.IQueryable<'Source>[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Enumerating collections as IQueryable can require creating new generic types or methods, which requires creating code at runtime. This may not work when AOT compiling.")>]
static member DistinctBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> -> System.Linq.IQueryable<'Source><Extension()>
Public Function DistinctBy(Of TSource, TKey) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey))) As IQueryable(Of TSource)형식 매개 변수
- TSource
의 요소 형식입니다 source.
- TKey
요소를 구분할 키의 형식입니다.
매개 변수
- source
- IQueryable<TSource>
중복 요소를 제거할 시퀀스입니다.
- keySelector
- Expression<Func<TSource,TKey>>
각 요소에 대한 키를 추출하는 함수입니다.
반품
IQueryable<TSource>
IQueryable<T> 소스 시퀀스의 고유 요소가 들어 있는 값입니다.
- 특성
예외
source은 null입니다.
적용 대상
DistinctBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IEqualityComparer<TKey>)
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
지정된 키 선택기 함수에 따라 시퀀스에서 고유 요소를 반환합니다.
public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
static System::Linq::IQueryable<TSource> ^ DistinctBy(System::Linq::IQueryable<TSource> ^ source, System::Linq::Expressions::Expression<Func<TSource, TKey> ^> ^ keySelector, System::Collections::Generic::IEqualityComparer<TKey> ^ comparer);public static System.Linq.IQueryable<TSource> DistinctBy<TSource,TKey>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector, System.Collections.Generic.IEqualityComparer<TKey>? comparer);[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Enumerating collections as IQueryable can require creating new generic types or methods, which requires creating code at runtime. This may not work when AOT compiling.")]
public static System.Linq.IQueryable<TSource> DistinctBy<TSource,TKey>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector, System.Collections.Generic.IEqualityComparer<TKey>? comparer);static member DistinctBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Linq.IQueryable<'Source>[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Enumerating collections as IQueryable can require creating new generic types or methods, which requires creating code at runtime. This may not work when AOT compiling.")>]
static member DistinctBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> * System.Collections.Generic.IEqualityComparer<'Key> -> System.Linq.IQueryable<'Source><Extension()>
Public Function DistinctBy(Of TSource, TKey) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey)), comparer As IEqualityComparer(Of TKey)) As IQueryable(Of TSource)형식 매개 변수
- TSource
의 요소 형식입니다 source.
- TKey
요소를 구분할 키의 형식입니다.
매개 변수
- source
- IQueryable<TSource>
중복 요소를 제거할 시퀀스입니다.
- keySelector
- Expression<Func<TSource,TKey>>
각 요소에 대한 키를 추출하는 함수입니다.
- comparer
- IEqualityComparer<TKey>
IEqualityComparer<T> 키를 비교할 수 있는 항목입니다.
반품
IQueryable<TSource>
IQueryable<T> 소스 시퀀스의 고유 요소가 들어 있는 값입니다.
- 특성
예외
source은 null입니다.
