Queryable.MaxBy Method
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| MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>) |
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function. |
| MaxBy<TSource,TKey>(IQueryable<TSource>, Expression<Func<TSource,TKey>>, IComparer<TSource>) |
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function. |
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function.
public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
static TSource MaxBy(System::Linq::IQueryable<TSource> ^ source, System::Linq::Expressions::Expression<Func<TSource, TKey> ^> ^ keySelector);public static TSource? MaxBy<TSource,TKey>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector);static member MaxBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> -> 'Source<Extension()>
Public Function MaxBy(Of TSource, TKey) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey))) As TSourceType Parameters
- TSource
The type of the elements of source.
- TKey
The type of key to compare elements by.
Parameters
- source
- IQueryable<TSource>
A sequence of values to determine the maximum value of.
- keySelector
- Expression<Func<TSource,TKey>>
A function to extract the key for each element.
Returns
The value with the maximum key in the sequence.
Exceptions
source is null.
No key extracted from source implements the IComparable or IComparable<T> interface.
Applies to
.NET 10 и друге верзије
| Производ | Верзије |
|---|---|
| .NET | 6, 7, 8, 9, 10 |
- Source:
- Queryable.cs
- Source:
- Queryable.cs
- Source:
- Queryable.cs
Returns the maximum value in a generic IQueryable<T> according to a specified key selector function.
public:
generic <typename TSource, typename TKey>
[System::Runtime::CompilerServices::Extension]
static TSource MaxBy(System::Linq::IQueryable<TSource> ^ source, System::Linq::Expressions::Expression<Func<TSource, TKey> ^> ^ keySelector, System::Collections::Generic::IComparer<TSource> ^ comparer);public static TSource? MaxBy<TSource,TKey>(this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TKey>> keySelector, System.Collections.Generic.IComparer<TSource>? comparer);static member MaxBy : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Key>> * System.Collections.Generic.IComparer<'Source> -> 'Source<Extension()>
Public Function MaxBy(Of TSource, TKey) (source As IQueryable(Of TSource), keySelector As Expression(Of Func(Of TSource, TKey)), comparer As IComparer(Of TSource)) As TSourceType Parameters
- TSource
The type of the elements of source.
- TKey
The type of key to compare elements by.
Parameters
- source
- IQueryable<TSource>
A sequence of values to determine the maximum value of.
- keySelector
- Expression<Func<TSource,TKey>>
A function to extract the key for each element.
- comparer
- IComparer<TSource>
The IComparer<T> to compare keys.
Returns
The value with the maximum key in the sequence.
Exceptions
source is null.
No key extracted from source implements the IComparable or IComparable<T> interface.
Applies to
.NET 10 и друге верзије
| Производ | Верзије |
|---|---|
| .NET | 6, 7, 8, 9, 10 |
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